Starbase1 Posted February 26, 2021 Share Posted February 26, 2021 Hello All! I have a old scan of an image, nice details, but the colour is distinctly stronger towards the right hand side than the left, and it appears to change very smoothly. So, what I want to do is adjust the colour saturation, so that the left edge gets a strong colour boost, with the effect fading left to right, so the right edge is not affected. Is this possible please? All clues gratefully received! Thank You, Nick Quote Link to comment Share on other sites More sharing options...
h_d Posted February 26, 2021 Share Posted February 26, 2021 Yup. Add an HSL Shift adjustment, set the Saturation Shift to the left: With the HSL Adjustment layer selected, choose the Gradient Tool and drag it across the image: White is full effect, black is no effect. (I did mine right to left but the principle is the same.) Cheers, H Quote Affinity Photo 2.0.3, Affinity Designer 2.0.3, Affinity Publisher 2.0.3, Mac OSX 13, 2018 MacBook Pro 15" Intel. Link to comment Share on other sites More sharing options...
Starbase1 Posted March 5, 2021 Author Share Posted March 5, 2021 Sorry, it took me a while to get the time to come back to this. Wow! So easy I got it right first time, thank you so much! In case it's of interest, I was working on an old map of Mars by Antoniadi, where on side of his map was distinctly darker than the other. I wanted to wrap it around a sphere to make a CGI Mars globe. I attach the result, showing the seam - it's still visible, but that's mainly because his map edges did not match up quite properly. Nick Old Bruce 1 Quote Link to comment Share on other sites More sharing options...
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