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Equalising the hue and tint on two monochrome photos

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I am creating a catalogue promoting a range of aluminium components. All of the photos I have been given by the client have a similar tint/hue/cast to Picture A. Now the customer wants me to include Picture B as well derived from a different source/studio. I have been experimenting with different options to achieve equalisation of the general appearance using Affinity Photo 1.8.3 but I have limited experience in this type of photo manipulation.  I can make changes but I cannot get to where I need to be. I am sure it must be possible. Is there somebody out there who can give me some advice?

Picture A.jpg

Picture B.jpg

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  • 4 weeks later...

Here's what I was able to do:

1) Here's Picture A and Picture B next to each other.


2) The first step was to correct the luminosity of Picture B to match that of Picture A. I created a "luminosity check layer" with a grey fill layer, set to blend mode = Color. I added a Curves layer as a child of Picture B, and changed the blend mode to Luminosity. I moved around the points on the curve so that the tone of Picture B was reasonably close to that of Picture A.


3) I turned off the Luminosity Check layer, and created a document palette. I clicked the "hamburger menu" in the Swatches panel and chose "Create Palette from Image..." I pointed the application at the Picture A file, and created a palette of 4 colors (could have been more, of course). Then I created a Gradient Map as a child of Picture B. I used the 4 colors from the Picture A palette to set the colors in the Gradient Map.


Affinity Photo 2, Affinity Publisher 2, Affinity Designer 2 (latest retail versions) - desktop & iPad
Culling - FastRawViewer; Raw Developer - Capture One Pro; Asset Management - Photo Supreme
Mac Studio with M2 Max (2023}; 64 GB RAM; macOS 13 (Ventura); Mac Studio Display - iPad Air 4th Gen; iPadOS 17

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