I'm not a programmer, but I see an opportunity here:
Go to istockphoto.com - this is a site where you can buy images for use in any type of publication, advertising etc.
The opportunity I see would be to offer to write software which indexes their entire collection by color.
Then when someone wants to buy an image for a publication they could put their colors in and have istockphoto only show them images which fit the color palette.
Sorry in advance as I'm not trying to make you feel stupid but.. I used to use that feature a lot before they were acquired by Getty (and their prices got so ridiculous I stopped using them.) So at least six years ago.
Go to istockphoto.com - this is a site where you can buy images for use in any type of publication, advertising etc.
The opportunity I see would be to offer to write software which indexes their entire collection by color.
Then when someone wants to buy an image for a publication they could put their colors in and have istockphoto only show them images which fit the color palette.
This would save designers a ton of time.