Image file

Image file formats provide a standardized method of organizing and storing image data. This article deals with digital image formats used to store photographic and other image information. Image files are made up of either pixel or vector (geometric) data, which is rasterized to pixels in the display process, with a few exceptions in vector graphic display. The pixels that comprise an image are in the form of a grid of columns and rows. Each of the pixels in an image stores digital numbers representing brightness and color.
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