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File:Posterization example.jpg

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Original file (658 × 894 pixels, file size: 241 KB, MIME type: image/jpeg)

Summary

Description The following is an example of a scenario where posterization may occur, and relates to the image above. A photo saved in JPEG has 256 variations of luminosity in Red, Green and Blue (RGB) in which to derive its colours. This is approximately 16.7 million colours (256*256*256). However, if you were to take this image and save it as a GIF format image, which has a total of only 256 variations of RGB in which to work with, then the subtle transitions in colour and luminosity that your original photo contained may end up in very obvious and aesthetically unpleasing 'jumps' from one shade to another. This is posterization.
Date 8 December 2005 (original upload date)
Source No machine-readable source provided. Own work assumed (based on copyright claims).
Author No machine-readable author provided. Diliff assumed (based on copyright claims).

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  • to remix – to adapt the work
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Derivative works of this file:  Posterization example 2.jpg

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Date/TimeThumbnailDimensionsUserComment
current18:52, 8 December 2005Thumbnail for version as of 18:52, 8 December 2005658 × 894 (241 KB)DiliffThe following is an example of a scenario where posterization may occur, and relates to the image above. A photo saved in JPEG has 256 variations of luminosity in Red, Green and Blue (RGB) in which to derive its colours. This is approximately 16.7 mil

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