I have seen a range of color selection tools (ones that allow you select a color from a gradient image by moving the mouse and clicking) on the web recently and I know for certain that they are not flash. So how exactly do they work? I want a tool that will allow a user to click on a certain section of an image and extract the color (of that exact pixel where clicked).
Is this possible?
I believe it's possible as the Firefox extension ColorZilla does precisely that..
I have no idea how though ;)