Who this post is for
Designers together with people who provide images to printers together with desire to provide the best paradigm possible without a lot of technical complication. Also, printers who have miserable character images who desire to assistance their customers tweak images to teach a improve result.
The software
I'm using PhotoShop CS3, but whatever paradigm editing software that is capable of doing these basic manipulations volition work.
The image
I'll live using this image:
because it has, I promise you lot tin see, some obvious color problems. The paradigm is from the immature lady of make-up human being Harry Buchman who worked on the moving-picture demonstrate "Jaws."
The 8 basic steps
There are many ways together with tools that compass the same or similar results - almost are rattling simple, but similar anything they tin live made to a greater extent than complicated. This next is a basic, pragmatic, method to getting improve images for reproduction.
These are the 8 steps:
1) Check the estimator monitor display to brand certain that it is representing the musical note scale correctly.
2) Check the estimator monitor display to brand certain that it is representing neutrals correctly.
3) Check the paradigm resolution.
4) Set the color target.
5) Adjust color
- alongside an "auto-correction".
- alongside a manual correction.
6) Set Black together with white points.
7) Adjust contrast.
8) Sharpen paradigm together with relieve (under a novel name).
Step One - the musical note scale
Download this graphic together with opened upwards it inward your paradigm editing application:
You should meet a 21 footstep ramp going from 0% on the left to 100% dark on the right. The dark should await dark together with the white await white. You should live able to distinguish every land of grayness kind from each other withal it is acceptable if the lastly 2 patches (95% together with 100%) blend together.
Step Two - neutrality
The patches of grayness inward the graphic should all await neutral.
If your display passes #1 together with #2 together with thence you're expert to go. If not, you lot may take away to a greater extent than sophisticated help.
Step Three - paradigm resolution
Check the paradigm resolution. Typically the paradigm size is based on a resolution of 72 pixels per inch (a.k.a. 72 dpi):
This paradigm is sized at 8.333" x 5.625" at 72 pixels per inch. 72 pixels per inch is pretty criterion for spider web pages. For printing, a higher resolution is required. Changing the resolution of this paradigm to 300 pixels per inch alongside "resample" non selected:
shows that this paradigm is solely suitable to live reproduced inward impress at a size of 2" x 1.35". An paradigm resolution of 300 pixels per inch (a.k.a. 300 dpi) at 100% reproduction size is quite criterion for impress application.
Step Four - gear upwards the color target
This tells the paradigm editing application what the intent, or lastly destination, of the paradigm is together with helps it to display the paradigm correctly. The color target is embodied inward a color profile.
The 2 almost mutual color profiles used are:
1) sRGB - which is used for images destined for the spider web or printed on desktop inkjet together with photofinishing printers.
2) Adobe 1998 - which is used for images destined for impress reproduction.
By default, almost digital cameras embed the sRGB profile. It tin live reassigned to the Adobe 1998 profile if the destination is a printing press.
Step Five - adapt color
Auto-correction
Many paradigm editing applications lead maintain an auto-correction capability:
Sometimes that volition give an acceptable resultant or i that tin live a base of operations for farther work:
Auto-correction tends to function best alongside images that incorporate a nifty multifariousness of colors.
OR
Manual-correction
Manual color correction takes 4 steps:
1) position neutrals
2) neutralize mid-tones
3) neutralize shadow-tones
4) neutralize highlight-tones
This paradigm contains several probable neutrals:
The highlights on the water, the midtones of the beret, the shadow-tones inward the darkest purpose of the vest.
Use the eyedropper tool to stair out the RGB values of the mid tones inward the beret:
The eyedropper indicates that the RGB values inward this purpose of the paradigm is:
R 131
G 71
B 60
The large release for RGB relative to the G together with B values indicates that the paradigm has a carmine shape (too much red). To live neutral grayness the RGB values should live similar. By adjusting the RGB color values thence that they are similar makes the mid-tones represented yesteryear this expanse of the paradigm neutral:
It's non of import that the RGB values are absolutely identical - unopen plenty is expert enough.
In this illustration the lastly RGB values are:
R 81
G 87
B 85
Note that the color adjustment is balanced inward that Red is lowered piece Green together with Blue are increased.
Repeat the color adjustment, using the same physical care for for the highlights together with the shadows.
The result:
Step Six - adapt dark together with white points
Use the "eye dropper" tool inward concert alongside the "Show Info" dialog box to teach the RGB values of the specular highlights. Highlights that should live absolutely white alongside no detail:
Pure, no especial white should lead maintain RGB values of 255 each. This image's values are:
R 242
G 235
B 235
Which agency that although they may appear white - the highlights are genuinely grey. Adjusting the highlights using the "level adjustment" selection sets the highlights to their appropriate values:
The same matter would together with thence live done to the darkest dark inward the paradigm which should live unopen to:
R 0
G 0
B 0
The result:
Step Seven - adapt contrast
Adjusting contrast changes the human relationship of the tones of the paradigm making it appear "harsher" or "softer. The "Curves" carte du jour selection is used to alter contrast:
Step Eight - sharpen paradigm together with relieve (under a novel name)
The lastly steps are to "sharpen" the paradigm (of which in that place are many dissimilar methods):
In general, images destined for the spider web should live sharpened plenty thence that they await "natural". Images destined for impress should appear slightly over-sharpened, a combat harsh looking because halftoning has a combat of a softening resultant on images.
So, next these "simple" 8 steps, here's where nosotros started:
And here's where nosotros ended:
Obviously to a greater extent than function could live done on the image. Other, to a greater extent than sophisticated, methods could live used. However next these elementary 8 steps should provide much improve results for those people who don't desire to teach besides technically involved.
Designers together with people who provide images to printers together with desire to provide the best paradigm possible without a lot of technical complication. Also, printers who have miserable character images who desire to assistance their customers tweak images to teach a improve result.
The software
I'm using PhotoShop CS3, but whatever paradigm editing software that is capable of doing these basic manipulations volition work.
The image
I'll live using this image:

The 8 basic steps
There are many ways together with tools that compass the same or similar results - almost are rattling simple, but similar anything they tin live made to a greater extent than complicated. This next is a basic, pragmatic, method to getting improve images for reproduction.
These are the 8 steps:
1) Check the estimator monitor display to brand certain that it is representing the musical note scale correctly.
2) Check the estimator monitor display to brand certain that it is representing neutrals correctly.
3) Check the paradigm resolution.
4) Set the color target.
5) Adjust color
- alongside an "auto-correction".
- alongside a manual correction.
6) Set Black together with white points.
7) Adjust contrast.
8) Sharpen paradigm together with relieve (under a novel name).
Step One - the musical note scale
Download this graphic together with opened upwards it inward your paradigm editing application:

Step Two - neutrality
The patches of grayness inward the graphic should all await neutral.
If your display passes #1 together with #2 together with thence you're expert to go. If not, you lot may take away to a greater extent than sophisticated help.
Step Three - paradigm resolution
Check the paradigm resolution. Typically the paradigm size is based on a resolution of 72 pixels per inch (a.k.a. 72 dpi):


Step Four - gear upwards the color target
This tells the paradigm editing application what the intent, or lastly destination, of the paradigm is together with helps it to display the paradigm correctly. The color target is embodied inward a color profile.
The 2 almost mutual color profiles used are:
1) sRGB - which is used for images destined for the spider web or printed on desktop inkjet together with photofinishing printers.
2) Adobe 1998 - which is used for images destined for impress reproduction.

Step Five - adapt color
Auto-correction
Many paradigm editing applications lead maintain an auto-correction capability:


OR
Manual-correction
Manual color correction takes 4 steps:
1) position neutrals
2) neutralize mid-tones
3) neutralize shadow-tones
4) neutralize highlight-tones
This paradigm contains several probable neutrals:

Use the eyedropper tool to stair out the RGB values of the mid tones inward the beret:

R 131
G 71
B 60
The large release for RGB relative to the G together with B values indicates that the paradigm has a carmine shape (too much red). To live neutral grayness the RGB values should live similar. By adjusting the RGB color values thence that they are similar makes the mid-tones represented yesteryear this expanse of the paradigm neutral:

In this illustration the lastly RGB values are:
R 81
G 87
B 85
Note that the color adjustment is balanced inward that Red is lowered piece Green together with Blue are increased.
Repeat the color adjustment, using the same physical care for for the highlights together with the shadows.
The result:

Step Six - adapt dark together with white points
Use the "eye dropper" tool inward concert alongside the "Show Info" dialog box to teach the RGB values of the specular highlights. Highlights that should live absolutely white alongside no detail:

R 242
G 235
B 235
Which agency that although they may appear white - the highlights are genuinely grey. Adjusting the highlights using the "level adjustment" selection sets the highlights to their appropriate values:

R 0
G 0
B 0
The result:

Step Seven - adapt contrast
Adjusting contrast changes the human relationship of the tones of the paradigm making it appear "harsher" or "softer. The "Curves" carte du jour selection is used to alter contrast:

Step Eight - sharpen paradigm together with relieve (under a novel name)
The lastly steps are to "sharpen" the paradigm (of which in that place are many dissimilar methods):

So, next these "simple" 8 steps, here's where nosotros started:


Obviously to a greater extent than function could live done on the image. Other, to a greater extent than sophisticated, methods could live used. However next these elementary 8 steps should provide much improve results for those people who don't desire to teach besides technically involved.
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