I have a problem in Photoshop. I think it's easy, but I can't figure out how to do it.
I have this RGB image. Then, I need to create a grayscale copy of it. But I need to do this manually. Look:
- First, I need to create a grayscale copy of each R, G and B layer. So, I will have three layers, each of them grayscale corresponding to the signal intensity of each color.
- After separating each channel, I want to add all of them, to create the final grayscale image I want, but here is how I want it:
Each pixel in each channel will vary from 0 to 255. What i want is that in the red channel, the value will be multiplied by 0.3. On the green, by 0.59, and on the blue, by 0.11. (R x 0.3) + (G x 0.59) + (B x 0.11).
How can I do this?
Thanks a lot!
ps.: I know it's the channel mixer tool, but what values (and where to put) should I use to accomplish the desired effect?
I have this RGB image. Then, I need to create a grayscale copy of it. But I need to do this manually. Look:
- First, I need to create a grayscale copy of each R, G and B layer. So, I will have three layers, each of them grayscale corresponding to the signal intensity of each color.
- After separating each channel, I want to add all of them, to create the final grayscale image I want, but here is how I want it:
Each pixel in each channel will vary from 0 to 255. What i want is that in the red channel, the value will be multiplied by 0.3. On the green, by 0.59, and on the blue, by 0.11. (R x 0.3) + (G x 0.59) + (B x 0.11).
How can I do this?
Thanks a lot!
ps.: I know it's the channel mixer tool, but what values (and where to put) should I use to accomplish the desired effect?




