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Image Formats

(this is an old post copied from my Windows Live blog)
Just an FYI post for those out there that don’t know.

BMP – raw image data, similar to WAV for audio, stands for Bitmap.
PNG – “lossless” compression for image data, similar to Apple Lossless, FLAC, etc. for audio, stands for Portable Network Graphics.
JPG/JPEG – “lossy” compression for image data, similar to MP3, AAC, WMA, etc. for audio, stands for Joint Photographic Experts Group.
GIF – “lossless” compression for image data, but limited to 256 colors. Great for little web icons and such, but horrible for anything with more than 256 colors. Stands for Graphic Interchange Format.

Moral of the story: use PNG unless you really care about space.

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Categories: Technology
  1. Chris
    September 22, 2010 at 2:21 PM

    Use TIFF (tagged image file format) if your doing printing because it can keep layers in Photoshop. Also IE6 won’t support PNG transparencies if your using it for web design.

    • September 22, 2010 at 2:44 PM

      Perhaps it’s more encouragement to get off of IE6. 🙂 Also, good to know about TIFF’s layers support.

  2. Aaron
    September 22, 2010 at 3:09 PM

    Tiff is where it’s at. also you can have GIFs with more than 256 colors.

    ie6 needs too die.

    • September 22, 2010 at 3:11 PM

      Not according to Wikipedia. Maximum 8-bit color.

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