The most classic PS entry notes, from the master Li Tao road

2020-11-17 21:20:34  作者:PS, beautiful pictures, photography

China PS The first person, Mr. Li Tao, the most classic course , Speak true ,PS Quick start to read this ten thousand character note is enough , Zero basic non professional small white study PS The best collection of notes , Go with you PS The first step is this note .

Come on , Here is a copy PS Introduction quick fix method

People always ask a Suijun how to learn PS, Zero basis 、 Non professional 、 How should Xiaobai go from zero to entry , Quickly growing into a master ? In a Suijun's answer , There are a lot of high-frequency keywords appearing repeatedly , Among them, teacher Li Tao is my strong Amway every time . That's true. , Maybe the friends will still be a little confused , The pace of life is so fast , Can't calm down to see that long 、 So many video tutorials . ok , This time, a Suijun took out his heart nest and took notes from teacher Li Tao's lessons , Super dry goods with more than 10000 words , Send it all up and share it with you .

Need to know , There are too many PS master 、 The great gods all started from teacher Li Tao's course , If you touch PS Relatively early ,“ China PS The first person ” I must have heard of it .

This note is simple , Not a lot of pictures , The original appearance appears . Because a Suijun thinks about it again and again , Decided to keep the changes to a minimum ( The tutorial is based on cs2 It's done , So only when it comes to software changes will be explained ), Keep the notes as they were , Because when I was learning this class , I'm also a non design major 、 Zero based little white , Every word is sorted out from “ The small white ” Starting from the mentality of , Maybe that's what you're looking forward to 、 What you understand .

PS: Originally, a Suijun thought that the notes could not be found for a long time , All the computers have been changed , I have been turning over my hard disk in various email boxes since the weekend , Everything comes to him who waits , I finally found it word file . Saying so much , In fact, I just hope it can help me like PS Yes, dear ones , May we study together 、 Progress together , Thanks for a long time 、 After the meeting, he supported a Suijun , mua .

One 、 The relationship between light and color

  1. Ps It's image synthesis software , It's the re creation of existing material . Drawing and creating are not ps My job .( A Sui added : Yes, of course ,PS It can also be created from scratch , Now it's time to say , Drawing and creation ,PS You can do great work .)
  2. open ps Before software , To understand color accurately 、 The resolution of the , Three problems of layer .
  3. Red, green and blue are the three primary colors of light ; Red, yellow and blue are the three primary colors of color pigments ( The printing field is subdivided into magenta ( black )). Beauty of form and easy recognition are the first things in design , Set meaning 、 What represents an allegory is the second .
  4. There are four color patterns , Each one corresponds to a medium , Respectively :

◆lab Pattern ( Theoretically calculated color patterns corresponding to nature )

◆hsb Pattern ( System based on human eye recognition )

◆RGB Pattern ( The corresponding medium is light and color , Color recognition system for luminescent objects .)

◆CMYK Pattern ( The corresponding is the printing process ).

  1. Additive mode : The final hue of white is obtained ; Subtractive mode : The maximum values of hues are added to get black .
  2. lab Color pattern , One brightness channel and two color channels , It's a theoretically inferred color pattern . Theoretically, the corresponding medium is nature .
  3. hsb Color pattern , Three attributes of color :

◆ Hue ( Color name 、 Color and appearance , That is, red, orange, yellow, green, blue, purple, etc , The abbreviation is h, Its unit is degree , Color ring )

◆ saturation ( Color purity , English abbreviation s, Measured by percentage , It's about white )

◆ Lightness ( English abbreviation b, Measured by percentage , Lightness has something to do with black ).

Be careful : Black and white have no hue , No color image .

  1. RGB Color pattern , Each color has 256 A level , contain 16 777 216 Color . Because the maximum value of this mode rgb(255,255,255) What you get is white , namely rgb Three color values to white , So it's called additive mode ; When rgb(0,0,0) It's black .

Three rgb When the color values of the two colors are equal , There is no hue , It's a gray value , The closer we get, the lower the quantity , It's dark grey ; The closer we get, the higher the number , It's light grey .

  1. CMYK Color pattern , three primary colors , Also known as the three primary colors of printing ( That is, the three primary colors of ink ) Qingpin ( Also known as magenta 、 Magenta ) yellow . According to the shade of ink to distinguish the level of color ,0-100%, English abbreviation CMY. White value :cmy(0,0,0); Black value (100,100,100), The maximum hue is worth black , So it's called subtractive mode . Because of Technology ,100 The black effect is not good , So we have produced a kind of black ink separately , So the color pattern of printing is cmyk(k It's black ).
  2. CMYK And RGB The relationship between : Three primary colors of light RGB, In pairs use the additive mode ( green + blue = green , blue + red = product , green + red = yellow ) The three colors obtained are Cyan Magenta, which is the three primary colors of color .rgb It's additive mode ,cmyk It's subtractive mode . therefore , The addition of two additive colors gives a subtractive value .CMY principle , because rgb It's light on the print or the light , The complementary color is absorbed , The rest of the light plus mode is subtracted .
  3. Cyan absorbs red completely , In other words, when red light shines on a cyan object, there is no light and it is black . The principle is that complementary colors absorb each other completely . In the hue ring ,rgb and cmy It's a complete crossover , Both are flip flops 180 Degree , Cyan , The complementary color is red ; magenta , The complementary color is green ; yellow , The complementary color is blue .
  4. Gamut of color pattern : The three models are different . use rgb do , Turn into cmyk Lower the gray scale one time later . Overflow color , It's not a safe color , namely ,rgb exceed cmyk Part of , It doesn't print . Open or new , stay RGB Under the working environment of , stay CMYK Preview it in preview mode ( View —— proof colors —— Choose “ At work CMYK”), So you don't see spills . This is the first step in the process of making a work that needs to be printed . In such a working environment , It will remind you whether the selected color is overflow .
  5. The working environment is the monitor , So the new document mode is still rgb, Finally, it was converted to printing cmyk that will do .
  6. painting 、 Photography 、 Design is to reproduce the color of nature .
  7. Color has never been isolated .
  8. Buy a color guide ( For printing ), This is a necessary skill to ensure what you see is what you get .

Two 、 Pixels and resolution

  1. The pixel is the smallest unit that makes up an image , Pixels must be square , A pixel can only have one color ; Resolution must be in units , The web page is 72ppi, That is, in every inch 72 Pixel , For printing 300ppi. The huge painting on the roof , The resolution is given 15-45 That's all right. , Watch the bus stop , Feel it and you know .
  2. When you force a change in resolution , The pixels added out of thin air are obtained by copying the pixels next to them . There are three ways to reset image pixels , Lead near ( Add the left and right average )、 linear ( Add up, down, left, right, average )、 cube ( Add more positions to the average ). Cubic is the best , The fastest way to get close ; however , Generally for gray bitmap , Collar is better than cube , The clearer the structure, the simpler the outline , Collar is better than cube ; The more complex the color is, the better it is to use cubes .PS: After several generations of renewal , all-new PS There's added things like keeping details 、 The algorithm of two times standing up and so on .
  3. When designing printed matter , Note that the resolution should be set to 300 Pixels / Inch ,rgb Color pattern (cmyk preview ), The size is 10.6*10.6, Because it's bleeding all over the printing .
  4. With the original pixels unchanged , Without any loss , Cancel the reset image pixel option , You can change the resolution , The corresponding document size will also change .

How to change it correctly DPI? Improved DPI, It's bound to reduce the size of the document , That's the actual size , Of course, it's in the right way . Open the image size dialog box , Check constraint ratio , Then copy the pixel width and height value first , secondly , Change resolution , Finally, the width height value of the change will be restored . conversely , If you lower DPI, The document size increases .

  1. The bigger the resolution, the better ? not always .

A pixel corresponds to a byte .

What is the unit of resolution ? There are pixels per inch ppi、 Dots per inch dpi、 Display spot per inch dpi And so on .

3、 ... and 、 Painting and decoration

  1. Why do you have red eyes at night ? People go to dark places , People's pupils dilate to absorb light , So when you turn on the flash, you'll get a lot of big details , I got blood in my eyes , So there will be a lot of red that the camera remembers .
  2. Smudge repair brush tool : Just put it on the spot and brush it ;

Repair brush tool : Use a tool similar to a seal , Hold down ALT Key sampling , The difference is where it's restored, and it's natural to merge with the surrounding , Instead of completely replicating the sampling point ;

Repair tools : Set up constituencies where they are built , Then drag to the copied source , that will do ; Red eye tools : Just click to the red eye ;

Content aware mobile tools :cs6 Are there in , use first “ Content aware mobile tools ” Box to select what needs to be moved in the picture . In the properties of content aware mobile tools , Select the mode to move . Hold the mouse down , Drag and drop the selection to any location in the picture . Loosen the mouse , The images in the constituency begin with automatic photo fusion . Use the repair tool to adjust the original position .

  1. Brush tools are very important , however ps The brush in is not made for painting , The emphasis is on modification, and the emphasis is on local modification , It's very important , To understand thoroughly and learn well . The choice of constituency is very important , The ant line doesn't matter . The meaning of choice lies in local modification . Of course , The premise is that there is a pressure pen , Brush tools can be used to the extreme . The blending mode of the brush is exactly the same as that of the layer .
  2. Behind the scenes , You have to work on layers , No more background work . The meaning behind it is , The first one will be at the back of the original , That is, it will only be drawn to the back of the layer . Behind the scenes , It must be a layer with transparent areas , Otherwise, I can't see . The painting tools have strong local decoration , For example, add a halo to the character , Just choose the pattern behind the painting , that will do , You don't have to be a constituency . And it doesn't erode the image itself .
  3. The difference and exclusion are inverse values , It's the negative effect you see , The former is heavier , The latter is a little lighter . It's all local decoration . The dissolution mode depends on the virtual degree of the brush head , The more virtual, the higher the degree of dissolution , vice versa .
  4. Clear mode is the eraser function .
  5. Positive overlay and color filter mode , a key , Use a lot of , Positive overlay is subtractive mode , Color filter is additive mode , Additive color reduction . therefore , Mix two additive colors to get subtractive colors , Color ring notation , When two colors are mixed, the middle value of two color positions on the color ring is obtained . Reciting color rings .

Multiply the positive , It's color reduction , By in subtraction mode , The subtractive blending of the two colors produces the desired color , It's the principle of printing .

Make the image brighter. Use filter mode , Darken and multiply with positive .

Filter mode will absorb all the black , Because the purpose of the filter mode is to lighten , So black can't be painted at all . The positive will absorb all the white , The principle is the same . Case study , Two pictures , To remove the black background of a picture , Just let their mixing mode be filter .

  1. Darkening mode , The goal is to darken the picture based on the foreground , Everything in the image that is brighter than the foreground becomes the foreground , Dark places don't change . When making illustrations , You can use this mode to do leveling . Lightening mode , On the contrary . The reference tone can be selected directly from the image .
  2. Linear light is parallel , There is no attenuation ; Spot light , It has attenuation . Overlay and soft light are more useful . Overlay mode is similar to the overlay effect of two slides , Layer by layer . Soft light is similar , It can be specially shielded from neutral grey . stay RGB In color mode , refer to R=G=B=1:1:1 , That is, the values of red, green and blue are equal , It is neutral grey , When R=G=B=128, It's called “ Absolute neutral grey ”.
  3. Last group of patterns , It refers to the modification of single item locking . For example, choose the hue , It will only change the hue, not the purity and saturation . Saturation means lower saturation , The grayer the picture , The purity is gone . Not bright enough , You just need to fix the saturation , namely s Value . Color mode , It's used to color black and white photos . Color replacement tools , There's only the last set of hybrid modes .
  4. ps A lot of our knowledge is out of date , Every time it's upgraded, it keeps the old features . Imitation stamp is . Pattern stamp tool , It's very easy to use in the background , The tiles are good , Use case list , Define patterns -- Select the pattern stamp tool -- Select the defined pattern on the toolbar --- Then directly use the pattern stamp tool to daub it to the target position . Compared with filling , Or the function of local modification is very powerful . Defining a pattern refill is a powerful tool for creating seamless textures . Under the filter , There is one “ Pattern Maker ”, Select specific area , Then click generate , It will generate a pattern ( It was regenerated after breaking the constituency , Can be generated repeatedly )
  5. Paint bucket tools , You can fill in the foreground and change the scene , You can also fill patterns .
  6. History Brush Tool , Use with the history panel .ctrl+alt+z, Continuous back fast fade key . History Brush , The staying state of painting , Or do you use local modification , Switch back and forth between two states , Case study , A character image , The whole picture is blurred dynamically , Then you can draw the face with a history brush . When the shape where the history brush tool stays is cropped, resulting in pixel changes , Don't prohibit the use of tools , So keep using , You need to adjust the position of the tool first . Historical art brush , You can reply while adding effects , There are various modes to choose from .
  7. background eraser , Just erase the background , Expose transparent layer , And it will automatically recognize to ensure that the image is not damaged . Magic wand Eraser Tool , It's a combination of magic wand and eraser , It's rubbed off with a little pull .
  8. Gradient tool , There are five types ( Linear gradient , Radial Gradient , Angle Gradient , Symmetrical gradient , Diamond gradient ), It's the place for the exam , The default is a gradient from the foreground to the background . Note the mode options on the gradient toolbar , After selecting the mode, just pull it on the position of the target image . In gradient panel , The paint bucket at the bottom of the gradient color bar is used to control the color , Add color to the paint bucket if you don't want it , Click directly to select and drag down to delete . The paint bucket above controls transparency , You can adjust the size . Gradient in addition to the solid base gradient , There are also variegations , Noise mode does not automatically configure colors , Only within a certain range of colors , You can select a random gradient . It can be used with the back mode , Illustration effect .
  9. Fuzzy tools , Tools for local blur effects . Sharpen Tool , It's pure for color saturation , Use... With caution . Really sharpen , What is needed is a profile . This tool can give up unused . Smudge tool , It's for painting , After smearing, it will lose , More to give up . Liquefaction under filter , It can completely replace the daub tool .
  10. The sponge tool adjusts the saturation of the image , Sponge tools have decoloration and coloring (cs6 in , It's about reducing saturation and fullness ) Two modes , The color will turn grey , This is the default , Add color mode is add saturation . Dilution tools , It's for lighting , If the skin is not bright enough , You can use the dodge tool to brighten , Another way , It's copying layers , Use the color filter layer mode . Deepen tools , The function is the opposite , Deepen the color . Add color mode of sponge tool , For example, the face is too big , You can use this to draw a few times at the outline of your face , It's thin , It's equivalent to painting foundation. .
  11. The focus of painting and tools is on local decoration .

Four .Bridge The use of digital photo processing

  1. Canon camera camera raw The format suffix is .crw, Nikon is .nef, High end cameras like Hasu use .dng.dng Is the trend , yes adobe The company's format , It's a metadata package , It is to freeze the environment of the moment of taking photos . Bit depth , Need to understand . Camera data , The data provided can be used to learn and summarize , It's like the end of a movie , There's a lot of stuff in it .
  2. Shadow and brightness have details 、 Structured , Not dead black or pale . Watching a film is good or bad , It depends on the dark part and the highlight .
  3. Adjust white balance , stay bridge Double click the image to open to ps in , First you will be asked to confirm the output format . When adjusting the parameters of white balance , Hold down alt key , All black means under exposure , When white appears, it means there is exposure , What's so bleak is that it's overexposed , Red and yellow are warning areas , Red means it will explode soon . A little exposure is OK , Of course, it can't affect the subject in images such as portraits . The shadow is also pressed alt Key adjustment , If a piece of black indicates , So there can't be a lot of black , Otherwise you lose the details of the shadow , Just make it a little bit dark . Preview to check , Shadow check , It will remind you in blue where the shadow is missing the details , So is highlight , It's a reminder of over exposure .
  4. Be careful : Fainting , After adjustment , And then look at shadows and exposures .
  5. For the adjustment of the picture folder , Just select all , Synchronization in selection , Then everything is set up .
  6. The above knowledge point is in the darkroom processing of photos , It's the equivalent of a camera's tone configuration .

5、 ... and 、 passageway

  1. Two characteristics of the channel , It is “ underworld ”, Generally, there are only three kinds of colors, black, gray and white ; The channel is the background , Influence the front desk through the backstage .
  2. The basic use of channels is to record color information . open ps, There's color information in it . Channel by or Depending on it 256 Location to record color information , Because every channel is 8 Bit depth , So every channel has 256(2 Of 8 Power ) A place , Can record 256 One color . There are four color channels ( blend RGB passageway , red 、 green 、 Blue three channels ).256 Location records different information , It's about its different uses .RGB Pattern , It records the color information of light .ps yes 8 Bit depth image processing software ,2 Of 8 The power is 256.
  3. CMYK In the pattern , Channels record color information , That is, ink color information , Channel is subtraction mode . This is the simulation .
  4. Channels include color channels ( Used to record color information ),Alpha passageway ( To save the selection ), Spot Channel ( Spot colors are linked to printing , So with RGB It doesn't matter ,CMYK The color that cannot print out is used to solve with spot color , As long as it's a proprietary color, it's , Can save cost , Channel for recording spot color information separately ), Mask channel .
  5. passageway 256 Location, color , It's the color channel , Recording the selection information is Alpha passageway , It comes in three colors , Black and white grey , Black record non constituency , White records the constituency , The transition color gray records eclosion . Feather Radius , It refers to the ant line as the benchmark , Fade in the inner radius value , The outward radius value fades out .

choice —— Storage selection , It is recorded as Alpha passageway ; Load Selection , Immediate choice —— Load selection , Or directly ctrl+ Click on the thumbnail ; After selecting a constituency ,ctrl+c After copying the constituency , direct ctrl+n The new document is the same size as the selected area , Very convenient .

  1. Alpha Characteristics of the passage , Not all formats support storage ,tga( The entire targa, Lossless format , It's a 32 Bit , namely rgb and alpha Four channels , Usually this format is used in video , Can block the background , That is to block the black non selected area .),tiff,psd All three formats support storage Alpha passageway .jpg I won't support it alpha, But support path .
  2. layer mask . When you open two pictures , When you copy one and paste it into another , A new layer will be created directly on another image ; And if before pasting , Create a constituency on the other , Paste the original image only into the selection , And use mobile tools to manipulate , When a new layer is generated , Will generate a layer mask . layer mask , It's a temporary passage , So it has channel properties , Three colors and only in the background , So it's a variant of the channel . It is generally used to control the display range of layers . The advantage of it is the freedom to adjust at any time .

The right way is : Copy , Paste , Select the layer mask command from the layer menu , Including show all and hide all two modes . Processing and modifying masks : Click to select the mask . Painting and decoration tools , Can be used to process and modify masks , Most of the time , Using the brush tool , then , Select the mode you want , Then draw... On the object that needs to be covered .X Key is to switch the foreground color and background color . When you have to do a lot of layer blending , Generally, mask is used .

  1. Two pictures , Hold down shift Key can directly copy and paste one picture to the center of another .
  2. Gradient tool , When you control the layer , You can use it in color matching , You can also use gradient mapping to get grayscale images . When controlling layers , Use gradient and layer mask , You can make two blending layers blend very soft .

6、 ... and 、 Color matching

  1. Color correction and color matching , The former shows that the color of the film itself is wrong , So the first thing to do is check the color . then , Color matching , This is art processing . The three key points of the color mixing command : Color scale 、 curve 、 Hue / saturation .
  2. Color scale : If you think there is something wrong with the color of the picture , Use the color scale command directly . Histogram of color scale , It's the curve part of the color scale dialog . Histogram contains all the color information of the picture , There are input color scale and output color scale value options above and below the histogram , The former is before modification , The latter is revised . Color scale dialog box , The input color scale has three values , In the middle is gamma , It's the gray scale , That is, the gray triangle below the histogram . In the color scale , The relationship of contrast , The relationship of brightness , Medium gray , Can be calibrated . The color scale can also be adjusted according to the channel .

The first modification method : Through the output color scale of 8 Bit color scale bar , The dark part of the picture can be aligned , Gray region , Whether the bright region has the corresponding information in its position . then , You can correct this by dragging the small triangle at the bottom of the histogram . You can find a picture to experiment with .

Color scale dialog box , Hold down alt Key and mouse over the cancel key , It becomes a reset command .

The second method : There are three straws above the dialog preview command . Fixed field . Black and white, three straw tools , The function is to define the black field in the picture , White field , You can define it directly in the picture with a straw , After definition, the histogram will change accordingly . Gray is the most important thing , Define neutral grey , It is often an important part of defining the whole color white balance . Neutral grey calibration , The whole tone will not be biased .

The third method , Click the Auto button , Just go straight . however , Sometimes the automatism doesn't work .

  1. curve : Curves are more important than color scales , It's a graph . Curves play with shapes . There are inputs and outputs in the curve ,x The axis is the input ,Y The shaft is the output , It represents the image before and after modification . The top chord brightens , The bottom chord darkens . Contrast is a “s” line , Because the dark is darker , Brighter is more contrast . Curve adjustment is more responsible and refined than color scale adjustment , It's because the curve adjustment can be precise to any endpoint you want to control . curve , You can also use the pencil button to draw , Turn the curve after the pencil is finished . Curves don't usually make very complex shapes . Metal texture , It can be done by drawing a wavy line with a pencil . Straw 、 Automatically 、 passageway , It's the same as the color scale panel .
  2. Hue / saturation , It's adjustment HSB Of , Adjust based on visual perception . In the editing state of the panel , Except for the whole picture , Also available in primary colors , Select color directly , Only the limited color is adjusted .

Two hue values of panel , It's the input , Here is the output , Before and after the revision . How to define colors accurately in editing : After selecting a primary color , A slider with four endpoints appears between the two hue values , The main color is defined in the middle of two vertical bars, that is, the primary color selected in the editing , The left vertical bar goes to the left until the edge triangle represents the color tolerance value , The right side is also the tolerance value . It means that when the hue of the selected color is adapted , The color of the main body will change 100% , The tolerance value will be based on the vertical bar , Weakening change . You can also drag this slider to get closer to the color you need to change in the image . The four endpoints can also be adjusted by indenting . meanwhile , You can use lasso and other tools to make a general selection to define the modified parts . Of course , If you can't find the color , You can directly use the pipette tool to define the color that needs to be modified , If the color jumps , Adjust the size of cosmetic difference .

After checking the coloring option , It turns into a monochrome grayscale , It's about spot color drawings .

  1. Mr. Li Tao's experience in drawing , When opening a graph , When you use the color scale , You don't have to open the color scale panel , direct ctrl+shift+l, Automatic color scale . It's a good habit . Auto contrast doesn't have to be used . Color scale is a must , A picture , And then I give you four histograms , Choose which is the histogram of the picture .
  2. Color balance is an interesting command , It's a great change in the tendency of color , For example, adjust the color of the picture . Color balance panel , Chromatic order , Three color left printing , Three primary colors of right light , Complementary colors appear , Complementation of cold and warm .

Color balance options include shadows 、 Middle tone 、 Three parameters of highlight , Only the middle tone is the picture itself , So the default is the middle tone .

  1. Matching colors is an advanced command , Very interesting , Particularly useful . You can directly use the master's work as a source , Match to the target image . For example, to synthesize two photos , Matching first will make it very harmonious . Portraits and portraits can match , Portraits and landscapes can match , A lot of things can match . Two pictures , Match colors first , It's a perfect combination .
  2. Replace colors , It's the hue / Another use of saturation . Use the pipette tool in the panel to select the target on the image , Adjust the tolerance value to the range that needs to be modified ( White is selected ), And then directly modify the hue .
  3. Both the optional color and the channel mixer can be used to color the channel , The former was first used to trace colors in printing , Generally do not use rgb Mode in tune , Now it's a palette tool . The channel mixer has a “ monochrome ” Options , It's useful in making grayscale images . The usual way to get a grayscale image is in the image - adjustment - Color removal command , that will do . Another way is to , Change mode to grayscale mode .

The third way is to use a channel mixer , Check the monochrome option , Then adjust the parameters to get a better grayscale , Because you can get more details .

The application of image and calculation can also get a quality guaranteed gray image . You can also use gradient mapping to get grayscale images .

  1. Photo filter and exposure are commands for digital photos . Warm up when shooting people , The scenery is cool .
  2. The scanned images can be used ps Documents in - Automatically - Cut and adjust commands to split and save separately .
  3. shadow / highlights , Special commands for images with strong contrast between shadows and highlights .
  4. The inverse is negative , Tone equalization is to make your image average in tone . Color separation , Generally, the parameters used are 2、3、4, It can be used in illustration , use AI Nested path .
  5. threshold , The panel is a black and white picture , By adjusting the threshold color scale to control the number of black and white parts of the image . Threshold can be used to extract line drawings from illustrations . The way to get a line draft or a black-and-white image is : Execute the filter - other - high pass ( High contrast retention is the intersection of light and dark 、 The contour remains , Cover up where you don't need it ), And then in the image - adjustment - threshold ; then , Wipe out the places you don't need .

7、 ... and 、 Images - Pattern

  1. Images - In the pattern , Bitmaps and bittones must be grayscale before they can be used .
  2. A bitmap is a bit depth image , Namely 2 The first power of , Two colors . Bitmap is usually used in newspaper printing , Use a halftone screen on the panel . The pictures in the newspaper are realized with only one kind of ink , There was no concentration change , There are no gradients and grayscale , That is, through the halftone screen to achieve . The disc surface is also realized through the halftone screen . The resolution is usually set at 80 about , Set to at most 200.
  3. Two tone is also a kind of grayscale , There is a type option value in the dialog box : monotone 、 Two tone 、 Tritone 、 Four tone , They're all creating a relationship , It's called monochrome grayscale ,( The color command also produces monochromatic grayscale images ), This kind of picture can be combined with a variety of ink to form an ink , It's called monochrome ink , The usual spot color . Where it can't be printed , We're going to use spot colors ; Many of the prints are also in spot colors , The reason is that it can save costs . The two tone mode is actually a monochrome printing mode . Bitmaps are used in newspapers , Grayscale is used in normal grayscale printing , Two tone is used in spot color printing .
  4. Index color , It's the essence of the whole movie , It's a single channel picture , At best 256 One color , Usually used in small icons such as gif chart ., The index can record transparently . Index color has something to do with the color table , The color table records all the color information of the index color pattern image . How to control index color , In storage for web Use in the color panel , We can choose double and quadruple to observe and compare the central region , You can choose three other types to compress , Compare with the original , Choose the best effect .gif It doesn't make the picture smaller , Small icons , With transparency animation, choose gif Format .
  5. Multi channel mode is usually used in proofing . Generally by cmyk Go straight to it , Throw away the compound channel after the turn , To print , In this case, the printer will produce four films , It can be used separately . Multi channel mode , file - Stored as -, There are few format options ,ps dcs 2.0 Or is it ps Raw, When stored as the former , It asks if it's stored as a single file or multiple files , Generally, multiple files are selected DCS, No recombination , There are usually five films , It's usually used for the film out machine .
  6. Film is 16 Color depth , namely 2 Of 16 Power *3 Color .ps Files that can handle film , Can handle 16 Bit picture . TV is 8 Bit .
  7. Alpha channel , It's color information . Use the restore channel to make a selection , Channels record color information , Can be converted to alpha channel record selection information , And then mix through layers ( Color filtering in additive mode ) To restore the constituency .

8、 ... and 、 layer style

  1. layer mask , It's a temporary passage , Control the display range of layers . The way to use it is to use the painting and decorating tool set to draw . The best thing about avoiding damage to the original material .
  2. Layer blending - Default options dialog box : Conventional mixing 、 Advanced mix 、 Mixing color bands is the basic way to mix . Brush blending is mixing while painting , Layer blending is equivalent to drawing in advance , Final mix . Case study , When coloring , You can create a new layer to color it and then use “ Color ” Mixed mode is OK .
  3. Color bands mixed in ps 4.0 It has some functions . Under the gray option , Mix the dark areas separately 、 Gray areas and bright areas , You can mix down , You can go up there . The little triangles on the color scale , Hold down alt When the key moves , It can be disassembled , Opening means tolerance , Adjust the blending between layers .
  4. Advanced mix . Case study , Penetrating layer , Hollowed out options on the panel , Shallow is digging to the bottom of the layer group , Deep is digging directly into the background , Set the fill opacity value to the degree you want . Here's one gif A small example of frame animation .
  5. Layer styles are used for web buttons 、UI Set up and so on , Very convenient . Projection has one advantage , There is a contour line in the quality , Contour lines are curves , The parabola shape is grayscale ,s The contrast is strong , The sector centered on the lower right corner will be very bright and vice versa .
  6. Internal projection , It's the feeling of hollowing out on the paper . The effect of relief is to thicken . Use of style library , Create a new layer directly , Then click on the desired style , The result of operating on this layer is to select the style directly .
  7. Layers - Layer style - Create Layer command , You can create a layer directly from the created style , Each effect generates a layer , The original layer name will be underlined , The style effect layer will be indented half way , They're layer groups , A kind of clipping layer . Operate alone .
  8. Layers - New Fill Layer , The fill layer is actually a solid color layer with a mask , The mask is all white by default , Show all masks , You can use black to control the display range . Double click the solid color layer thumbnail to call up the color panel directly , Change solid color . Be careful : The company computer did not change the layer content options , To go home and check the home version .
  9. Pay attention to the learning and use of new adjustment layer . Secondary options and images - The command under the adjustment is basically the same . Adjusting the decoration under the layer will not destroy the original material . Adjust the layer , Double click on the thumbnail to correct the parameters , Adjust the layer with mask , You can control the display range . The new fill and adjust layer buttons are directly below the layers panel . If you check the panel “ Use the previous layer to create a clip mask ”, The command only works on the previous layer , There is an underscore under the grouped layer , The layers of the group are indented in half to show the group relationship with a downward clipping . What is marshalling , That is to put the content of the upper layer into the shape area of the next layer , Can be in the layer - Create a clip mask to implement , Or through the shortcut keys , Place the mouse over the horizontal line between the two layers and hold down ALT key , Directly click . Be careful : We need to call the big picture into the small one . Applicable cases :N Layers can even be grouped into a shape .
  10. Control the display range of layers :1. Add layer mask ;2. Add vector mask ;3. Add clip mask ;4 edit - Paste special - pay or lose money on sth. ;
  11. Layer panel lock command , Transparent pixels can be locked separately 、 Image pixels 、 Location 、 All , After selection , Making further changes will not destroy the locked content .
  12. Layers - Vector mask - current path , You can create vector masks with paths . The advantage of the path is that it's very smooth . The most common method is to import vector graphics , Call path to make vector template . A layer , You can add vector mask , You can also add layer mask , The former controls the shape , Bitmap mask controls the display range . Put into ps Medium ai Files are intelligent objects , It can be operated by intelligent objects in the layer .

Nine 、 Filter

  1. Use case of extraction filter , Mainly used in the more complex details of the place , Such as hair . however ,CS6 In the later version, no filter has been pulled out .
  2. Vanishing point filter , The solution is perspective ( Near and far away ) The problem of .
  3. Pixelate - Color halftoning , You can see the final effect of the enlarged print . Description of panel parameters : The radius is the size of the ink dot . This effect is usually used as a background . Gray can be used with , Grayscale has only one screen , After the image is grayscale, select color halftone . This special effect is used in old posters 、 Figures, etc .
  4. In twist filter , Polar coordinates , Displacement and lens correction ( Two points ). Polar coordinates , For example, it's a globe ( It's like the dome mural of a church ), Plane coordinates are maps , This filter is a switch between the two coordinates . Used in special effects such as explosions . Replacement filter , Like 3D model mapping , That is, we need to put a map on the model we need , There are cases here . When using , We need to figure out who the model is , Who is the texture . The model should be stored as psd file , Then use the displacement filter for the map , Panel parameters , The horizontal scale and the vertical scale are misplaced values ; Permutation graph is model , According to the size of the model and map, set it as needed ; An undefined area is a misplaced area , There are folding and repeating edge pixels ( Drawing effect ) Two options . After setting the parameters , Ask where the model diagram is , Select the previously saved model psd; then , Use layer blending model to mix . Distortion - Lens correction , Adjust the edge deformation of the wide angle shot .
  5. Variegated - Reduce Noise , When there's a lot of noise in scanning, etc , Use a noise reduction filter , Advanced options can be adjusted for different channels . Add a noise filter for the graininess of the film , Adding noise will make the effect more prominent , Low illuminance 、 When you take a photo with high sensitivity, the graininess will appear , If not enough, add noise .
  6. Blurring and sharpening are important . Fuzzy - Special ambiguity , It's a fuzzy block 、 Noodles , The way in which the contours are not blurred , After use , You can use the history brush to restore the bad edges . This order can be forgotten . Turn to surface blur , A filter specially used for skin treatment . Fuzzy - Lens blur , It mainly simulates the virtual and real effects of depth of field , Must be used with layer mask , Add a... To the channel alpha passageway , Add a gradient , And then in the use of lens blur , Adjust panel parameters .
  7. Rendering - Lighting effect , Simulate the feeling of light , Panel parameters , Light is a light bulb , The full light source is natural light such as the sun , Parallel light is a tube lamp . There are also preset halo effects ; And texture channels , Can create light + Texture to create relief and other effects . It can also be used alpha Channel to control the display range .
  8. Sketch filter , It has something to do with the foreground and the background .
  9. How to make the interlacing effect of TV picture , There are cases here . Using patterns ( newly build 1*1 White background file , Then expand the canvas , Get the definition pattern ) To fill in the new layer , Using positive overlays to mix layers .
  10. Video Effects , It is specially used for TV frame frame , Make use of TV stills with video - Line by line recovery . The computer displays line by line , TV is interlaced .
  11. sharpening -USM sharpening , It's called anti mask sharpening , No more RGB Sharpen in mode , Because sharpening is color purification . To lab After the model , Do it for the lightness channel . Smart sharpening , Panel parameters , Remove , There are three options for Gaussian Blur 、 Motion blur , Lens blur optional . Blurring is leaving the edges behind , Fuzzy whole . Sharpening is the opposite , Contour only .
  12. D, Reset the color plate before black after white . file - Automatically - The batch , You can do a lot of repetitive work with one click . bad parameter , Choose to log errors to a file . Using documents - Automatically -photomerge, When splicing panoramic photos , Match colors first , It can make the convergence more natural .
  13. The advantage of movement is to eliminate repetition 、 Mechanical work . Action recording , Highly configurable , You can delete every step at will , Drag it directly to the trash can or tick off the tick at the front of the step , You can also add any new operation , Click record under the currently selected action line to add . In addition, the box in front of the action line is the parameter setting , Click to set parameters . A single action cannot be stored , It needs to be stored as an action group .

Ten 、 Color matching skills

  1. Color matching must be done :1st, Must do automatic color scale (ctrl+l Dial out panel ,ctrl+shift+l auto levels );2nd, Track the saturation (ctrl+u Dial out panel , Generally, it can be traced back 30 etc. ), It can make the film more vivid, brighter, transparent and healthy ;3rd, Strengthen the surroundings ( Using color balance ctrl+B Dial out panel , Focus on shading -5,8,10; highlights 10,0,20, Be sure to check keep brightness ), Such as skin texture to warm color , The landscape texture is still cool, relying on ;4th, Sharpening ( Copy background layer , Filter the copy of the background layer - Other - high pass 1 Pixel , The outline is selected , Next, use layer blending mode - Soft light to shield gray , The sharpening is completed , If you need to improve sharpening, continue to increase the effect , Just copy the layer ). These four points are based on people's eyes and psychological feelings are consistent . You can make this “ action ”.PS: Of course! , Now it seems , You don't have to stick to it .
  2. cross processing , It's to make a cool light tone on the film . Suitable for dealing with late autumn background . Positive film negative impulse should be aimed at the channel . First, for single channel modulation , After adjusting, we are looking at the color scale . When single channel is selected , Check other channels to show , Then execute the application image , Blue channel :1st, Check invert , The pattern is a positive overlay , Opacity changed to 50%; Green channel , Images - Apply image , Reverse phase , Multiply the positive , The opacity 20%; the red channel , Images - Apply image , Do not check invert , Mode color deepened , The opacity 100%. End of channel calculation .

Next , Color adjustment . Blue channel ,ctrl+l Adjust color scale , Adjust only three values of input color scale ,25,0.75,150( The input values , Gamma coefficient , Output value ); Green channel ,ctrl+l Color gradation ,40,1.2,220; the red channel ,ctrl+l Color gradation ,50,1.3,255.

Select mix RGB passageway . Images - adjustment - brightness / Contrast , brightness -5, Contrast 20;ctrl+u, Call up hue and saturation panel , Add saturation to 10 about .

thus , Get a positive negative impact effect . Melancholy type , With positive negative impact .

I'm the note divider

Okay , This is a primitive to text only note , With my dream notes , I'm glad that I insisted on it , Let a Suijun be able to write articles from one who only knows how to write 、 A man of Arts who is planning , Can shuttle in the design of sunshine Avenue , Making pictures 、 Cut the film and even do some special effects , It was a lot of fun . Or that sentence , I hope it's useful for your partner , You are also welcome to leave a message .

PS: Teacher Li Tao is the master of this course , Actually, I took notes too , The article is too long , If you like this kind of simple notes but not too long , I'll think about sharing some other day , mua .

The notes of the improvement section are here →[PS From introduction to improvement , Mr. Li Tao teaches three axes to master in person ][PS From introduction to improvement _ Mr. Li Tao teaches three axes to master in person]

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