Other than converting to Greyscale, no extra work has been done. Do you see a problem? Now here is the same Greyscale image, but this time converted back to a three channel RGB image. Of course the original colour has not been recovered as that was thrown away in the first conversion to Greyscale. Again, no other work has been done to the image. Do you see a difference between the two versions above? Website browser software is not normally colour managed with the result that single channel Greyscale images will have a collapse in the shadow detail and look far too dark.
Some newer versions of web browsers do now come with colour management options, but most users will never know about this and so will not have it switched on. There will be an increase in the image file size, but the disadvantage of this will be far out-weighed by the benefits of viewing the images with decent shadow details. NOTE: If the two grey images above look the same and the first does't have a collapse in the shadow detail, then it is likely that you are viewing this website with a colour managed web browser.
If you have your own website then it is best to have your browser colour management switched off. Because it is best to view the website the way your customers and clients will view the website. If you see a problem with the images, then you know that they are seeing the problem too and you are now in a possition to fix it. This means that the very messy process of how human eyes and brains work is factored into this.
Including nonlinearness of those systems. Why would this be beneficial? Well, artists are traditionally humans. And they react to sensory stimulus. So when you have an artist the important bit is that they sense it correctly, numbers be damned. But this does not fit your use case. That is fine Photoshop isn't even designed for your use case.
Possibly you should be using something else like zbrush or mudbox. Anyway the real answer is that if your interested then you can do this all you need is to make a color profile and dot gain that is truly linear. But beware monsters lie here! Now you are in trouble since you are fighting the purpose of your software. You need to know how to deal with every step from this point forward, in pgotoshop and your entire publishing pipeline there is a chance that any one of those things encodes your linear values in nonlinear.
Which you are unlikely to want. Also it becomes problematic to show the picture for you since the interpretation is different from what you think. There is really no good solution here. Explaining everything here would be a good state of the art review for a PhD. Sign up to join this community.
The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Converting Color To Grayscale How to covert a regular color image to grayscale? The average combines and summarizes the three values into one number More complicated brightness measures are possible, but average is simple and works fine for our purposes. This average number represents the brightness of the pixel Then set the red, green, and blue values of the pixel to be that average number.
The result is a grayscale version of the original color image.
0コメント