Text Version

JPEG

GIF

Named after Joint Photographic Experts Group (committee that wrote the standard)Graphics Interchange Format originally developed by Compuserve
Lossy compression--images will degrade if decompressed and recompressedNot lossy--will not loose information in converstion to GIF (slightly sharper)
Stores 24-bit/pixel (16 million colors)Stores 8-bit/pixel (256 or fewer colors)
Best for photos, paintings, complex computer-drawn imagesBest for artwork (buttons, bars, line art, simple cartoons), images with sharp edges, and simple computer drawn images
Not suitable for diagrams or blue prints--produces smudgy line artProduces large, washed-out photographs
Does not support transparencySupports transparency
Should have at least 16-gray levels if used for gray scaleLossless for gray-scale images of up to 256 levels
Can easily provide 20:1 compression of full-color data; can choose quality setting--more compression, less qualityCompression is usually 4:1
Can convert JPEGs to GIFsCannot convert GIFs to JPEGs

TO MOST EFFECTIVELY USE JPEG, EDIT IMAGE IN TIFF OR PNG AND CONVERT TO JPEG WHEN FINISHED.


For additional information:


  • Basic Information on JPEG vs. GIF
  • More Information on JPEG vs. GIF
  • JPEG FAQ
  • Comparison of JPEG and GIF
  • Another Comparison

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