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JPG (or JPEG) is a popular digital image format which contains compressed image data. JPG/JPEG is one of the effective image compression methods, with a compression ratio of several tens of times. However, the image after decompression will be different from the original image. Image quality is degraded after decompression. This attenuation increases with the compression coefficient.
Developed by: Joint Photographic Experts Group, IBM, Mitsubishi Electric, AT&T, Canon Inc.
Initial Release: September 18, 1992
File Extension: .jpg/.jpeg
MIME Type: image/jpeg
Asociated Programs: MS Paint, Adobe Photoshop, Apple Preview, Corel Paint Shop Pro, …
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GIF is short for Graphical Interchange Format, a type of raster image file, which is designed for relatively basic images that appear mainly on the internet. GIF is a bitmap image file format for images that use less than 256 different colors and animations that use less than 256 colors per frame. GIF is a data compression format that is especially useful for transmitting images over small traffic.
Developed by: Steve Wilhite at CompuServe
Initial Release: June 15, 1987
File Extension: .gif
MIME Type: image/gif
Asociated Programs: Paint Shop Pro, Adobe Photoshop, Windows Media Player, QuickTime Player, Picasa, Windows Photo Viewer, MS Paint, …
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