How do I duplicate an underwater photo of a color wheel?\n\n\nI want to try to correct underwater photos that I took to reflect the\nfact that some colors do not show correctly at depth. I took a color\nwheel to a depth of 50 feet and photographed it using natural light. [ I\ndid not use a flash.] I then took the resulting photo of the color wheel\nand tried to use Photoshop to alter the color so that it would match the\noriginal.\nI can't seem to get the photo of the red sector to look even remotely\nlike the red original. I do not know much about Photoshop, is my\napproach wrong or did I overestimate the ability of Photoshop to restore\nthe original colors?