How do I set the color configuration for PHOTOSHOP?

Like water impermanence, there is no universal color management program, only applicable to different requirements of the various scenarios of the call.

Based on the needs of the questioner, he uses Photoshop under a Mac to make a picture of his web design for each platform Web browser to properly present what he wants to show and the almost consistent effect he sees.

Backwards from the result, there are two exits, a. One is the Mac and PC (or class Windows) platform; B. Have the color management ability of the Safari,chrome, and the default does not have color management of IE or Firfox browser recognition.

So: There are 6 combinations of results:

Mac system, use Safari browsing;

Under the Mac system, use Firefox browsing;

Windows system, the default system has no color management, using safari browsing;

Windows system, the default system has no color management, using IE browsing;

Windows system, set up the system to open the color management, using IE browsing;

Windows system, set to turn on system color management, use safari browsing.

So at least the designer has to decide what kind of user you are designing for, and what kinds of users you need to take into account?

Because the Windows system, the default color management intervention, and the use of a unified common color management profile--SRGB, then in thousands of Windows systems, it may be seen in the theoretical consensus, but because the display brand and model is good and bad relationship, In fact, the difference is very large effect, but this deviation is generally in a small range. There is no particularly large color temperature deviation, unless the monitor is too bad.

And the Mac system, because the hardware is in most cases consistent, such as a two-generation MacBook Pro using the same panel, several generations of imac use the same panel, so the consistency of the hardware determines the effect of a small difference. Only the MacBook Pro panel and the imac panel differ in color temperature and gamut, and are inconsistent. This is the same as the many different display situations in the PC World. Fortunately, each Mac, its default is turned on to run the color management engine. By ColorSync to identify and accurately invoke the color profile of the display, let the monitor correctly display the data value it should display.

Again, the browser, ie this inborn disability, there is no color management of DNA, it can only use sRGB to present, you give it a feast, it also as kimchi. Safari is a natural supporter of color management, and in a system that turns on color management, the exact presentation comes with a file that is different from sRGB's other RGB ICC (such as the Adobe RGB ICC with a SLR camera that sets adobe RGB color space), Do not use the sRGB to explain the color of Adobe RGB.

Finally, the difference between sRGB and Adobe RGB, in simple terms, is to use the room as a metaphor. Adobe RGB is 120 square meters of bedrooms, sRGB is 70 square meters of small huxing. They all have their respective kitchens and bathrooms. But sRGB small size kitchen area is not equal to Adobe RGB kitchen area. This means that the range of green that can be shown in sRGB is far less than the green in Adobe RGB.

Figure: The middle color grid is sRGB, surrounded by its gray-white grid is Adobe RGB

If you have a picture with an Adobe RGB color profile, want to put on the network but most PC Windows users watch, by default, all this part of the audience will see a partial color photo, because their system and browser can not explain those beyond the sRGB range of green, red ... They can only see a picture of a castrated color. It's a tragedy.

If you take a picture, the color space of the camera is sRGB, then you can just put it on the Internet. This is the easiest way to do it, but if you understand that Adobe RGB can present far more sRGB color performance, would you castrate the wonderful colors that you had the chance to show? It's like you know how to watch high-definition 1080p movies, you have to force yourself to see the network version of 320p.

So here are two paths:

A, let all just have the sRGB environment of the low-end audience, see sRGB, but not the horror of the color of the screen, which requires the use of intermediate environment to do a color conversion, and must ensure that the maximum does not lose color, to ensure that the vision is too large deviation;

B, do not make any conversion, authentic, to ensure that the correct rendering of Adobe RGB quality of the original color management environment of high-end users, (why AdobeRGB high-end?) to restore 98%adobe RGB gamut display, the average price in RMB5000 above, At around 17000, Apple has discontinued the 23″, 30″cinema Display LCD of the previous generation aluminum alloy frame conforms to the SWOP printing screen soft proofing authentication. Less than 3000 of the display is not compliant with Adobe RGB display requirements, most are only the correct performance sRGB, are low-end, including a lot of notebook display, Apple is now included, are not professional monitors, but after testing, MacBook Pro display panel in the notebook to calculate the color reduction degree score excellent. Foreign have a variety of models of notebook display panel test results table, forget where to stand. )

For A

You need to convert Adobe RGB to sRGB via software, such as Photoshop, and if you are using a network, you may need to change the resolution to 72dpi.

To put the bedrooms things into small huxing, but also must ensure that not too much omission, this than to put the elephant into the refrigerator difficult steps are also not very much ~

The first thing to do is to make the environment a little bigger, and we need a space that can accommodate the entire ADOBERGB and all the sRGB values, and this space is a theoretical space called Lab. Figure: The color grid is Adobe RGB, the gray-white grid is lab, the latter is completely wrapped in the former, without side leakage. In this way, you can ensure that you eliminate the chance of missing adobe RGB colors from the Adobe RGB to sRGB conversion. As for the conversion process discarded, it is a change after the vomit, not congenitally deficient, nutritional deficiencies, is another matter.

2. Before converting, we also need a color conversion engine that is superior to the default of the system itself-

Adobe Color Management Module (Adobe CMM for short)

This Adobe color management engine, developed by Adobe, can be used for Third-party software such as CorelDRAW, which facilitates the same color management across software platforms on the same computer, and is better than the default or Photoshop default Adobe ace engine, Adobe Aces can only be used for Adobe software and are not valid for other companies ' software.

3. Set the color environment first, as shown in the picture: Under normal circumstances, many domestic printing factory use is domestic or Japanese ink type, so the use of Japan's top 2, the conversion engine to replace the Adobe CMM, store this setup program on the line. You must make sure that the "Keep embedded profile" in the Color management scheme is selected and check the three query options! Don't throw away, it is very unprofessional Sutaibani will do the broken things. The conversion intent here can be "perceptible"-this is when the color has to be lost, using the most visually close color to make the replacement, to ensure that the visual appearance of a small difference.

4. OK, so you can open your pictures in photoshop with Adobe RGB color profiles or other color profiles. That is, in the Adobe RGB color space created by Photoshop, open a picture that embeds an Adobe RGB color profile (ICC).

We can view the color profile of the file at the bottom of the open picture file.

5. Select menu, image--Pattern--lab color

6. Select menu, edit--Convert to config file

7. Target Space selection sRGB

8. Finally, save the file using the "Save as Web and device format" method. Take a JPG file as an example, check the embedded color profile (this optional), do not need to tick the "select conversion to sRGB", because it is already. Preview Choose Internet Standard RGB (no color Management), which is used for publishing on the Web, so if you look at the preview, you will see no difference from the sRGB.

For B

Save the file directly by using the "Save as Web and device format" option, which differs in the settings, as shown in the figure:

You must check the "Embed color profile" and preview select "Use document Profile".

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