I have two identical images content-wise, but they have different colors:
- Image 1: an image in a blue color palette
- Image 2: the same image with a hue shift (resulting in blue-green)
I am using the blue-green palette of Image 2 for many works. It is serving as my theme palette. Unfortunately, I noticed I did not save the hue shift value/number I used to create Image 2 from Image 1. I do however have Image 1 and Image 2 at least. The photoshop method I used to create Image 2 was:
Image > Adjustments > Hue/Saturation > ??
?? denotes the mystery number I entered in the master hue UI. My task is to create Image 2 all over again from Image 1. I find it hard to do without knowing exactly what hue value I used last time. I could of course eye-ball it, but I'm going for precision.
Question: Is there a scientific and/or refined way to reproduce a hue recolor without knowing the number? Like I said, I do at least have the images. The only way I can think of is to start a labor-intensive process of systematically testing hex-color codes against the desired result (Image 2) and the new image (which starts as Image 1 but should result in being identical to Image 2)