: How I convert Color Balance in Photoshop from CMY to RGB? I'm a total, utter, complete loss here. Basically we're making a photo filters app for iOS I have created several filters in Photoshop

@Michele215

Oh my... No, you are getting this wrong.

You do not need to convert from CMY to RGB. All the colors share the same space.

If you remove lets say the Cyan you will get this:
otake.com.mx/Foros/ColorBite-01.png
Simply. If you add more Red (R+) you will get a redish image. If you remove red (R-) you get a cyanish image. The Cyan is the complementary color.

But I agree that the UX of your example is wrong.

If you are puting a marker Cyan it also should have a numeric value (A)

But if you only want it to be a Red slider it should be an absolute Red value (B)
otake.com.mx/Foros/ColorBite-02.png
It has nothing to do with converting the 2 color modes.

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@Berryessa866

You are at the wrong place. Color balance is not for converting from RGB to CMYK.
-100 to 100 are not the "K-Values" which are from 0 to 255.

Try instead: Edit > Convert to Profile. Then select the CMYK profile of choice.

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