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Binary images, Indexed images, Grayscale images, True color images
Getty Images and Photobucket are great resources for free color photographs. The BigStockPhoto website is another wonderful website to find color images.
After Images
A false color image, made up of colors such as reds, yellows, and purples, can be more useful. In a false-color image of Niagara Falls, the calm water upstream might be black while the waterfall's turbulent water is bright blue.
There are various websites that offer printable images for Christmas pictures that children can color. A great website for this is coloring-page.net. They have a nice variety of images to print out that kids can color.
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GIF is good to use it with images that have solid colors (no more then 256 colors in total). People usually use GIF format to save images with few solid colors like logos for example. Difference between solid and continuous color images are that continuous color images have many shades of colors like photographs while solid color images have large areas filled with only one solid color.
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