Image file format: Difference between revisions

Revision as of 04:59, 30 October 2005

Revision as of 05:02, 30 October 2005

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==Image file compression==

'''The two categories of file compression''' are: [[lossy]] and [[lossless]]. The lossy compression algorithm takes advantage of the limitations of the human visual senses and discards information that would not be sensed by the eye. The loss of information is tolerable, and in many cases goes unnoticed. Files size is reduced as file compression is increased. At asome point image deterioration becomes noticeable. Lossless algorithms compress the image data with no loss in image quality, but this results in larger files than the lossy algorithms.

'''A comparison of the images''' displayed below show the greater file size of images saved in the PNG format. The photo, when viewed at its full 4 MP resolution, will show differences in quality.

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[[Image:CandyJaracp.png|left|thumb|250px|PNG file size 4,043KB]]

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==Major graphic file formats==