Hue & Saturation maps

Forum|Forum|6 years ago
April 7, 2019
2 replies
2961 views

Hi all:

Is there a quick way to make a hue or saturation map of an image?

I can look at values easily enough, by using the CTRL/CMD-y ( View > Proof-Setup > Custom > "Working Gray - Dot Gain 20%" )

I'd like to do the same for hue and saturation.

I know I can look at RGB by looking at the channels. And I can convert the image to Lab color, to work in that color space. But I cannot figure out how to do an equivalent in HSB color space.

Thanks in advance.

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D Fosse

Community Expert

Just be clear that HSL/HSB is not a defined color space. It is derived from whatever RGB space you're working in, and so it will give different results if that file is sRGB, Adobe RGB or ProPhoto.

M

marcj51709332Author

Participant

Thank you. Understood. I knew that but forgot. I want to do some color shifting and I think better in HSB than RGB. But maybe I should just switch my thinking to Lab.

It doesn't have to be perfect, I am trying to make dark green leaves turn fuschia, and trying to figure why I am not getting it right as a transform.

Separately, I want to make hue maps and saturation maps, so I can look at my images in grayscale 2D of each. I found looking at my values with CMD-y proof view to be very helpful.

Jeff Arola

Community Expert

There has been some debate about the results of the HSB/HSL filter even though the results are far as i can tell are the same as ps 1 that had actual HSB and HSL color modes and gimp which uses separations to achieve the same result. Unfortunately the person (Chris Cox) that created the HSB/HSL filter no longer works for adobe.

Saturation Masks 1: The problem with Photoshop’s HSB/HSL filter – Good Light Journal

The proposed method to make saturation masks, which gives a somewhat different result:

TRUE 16-bit Saturation Masks