Name * | ITU-T.6** | JBIG/JBIG2 | JPEG | LZW | Deflate | Wavelet | ImagePac |
Standard/Proprietary | Standard | Standard | Standard | Proprietary*** | Standard | Standard/ Proprietary |
Proprietary |
Lossless/lossy | Lossless | Lossless or Lossy | Lossy | Lossless | Lossless | Lossless or Lossy | Lossy |
Bit depths supported | 1-bit | 1-bit up to 6-bit typical | 8-bit or 24-bit | 1-bit up to 8-bit typical | 8-, 16- and 24-bit | varies |
24-bit |
Multi-Res | No | No | No | No | No | Yes | Yes |
File Formats and Applications Associated With | TIFF, PDF, fax | TIFF, PDF****, fax | JPEG/JFIF, TIFF, FlashPix, SPIFF, PDF | Zip, TIFF, GIF, PDF, Postscript | PNG, Zip, PDF | JP2, LuraWave, MrSID, ERMapper, DjVu |
Photo CD |
Web Support | Plug-in or helper application | Plug-in or helper application | Since Explorer 2, Navigator 2 for use in JPEG/JFIF files only | Since Explorer 3, Navigator 2 for use in GIF files only | Since Explorer 4, Navigator 4.04 for use in PNG files only | Plug-in or helper applications | Java applet or helper application |
* Links are to the organization
that developed the standard or corporation that owns the patent.
** Formerly known
as CCITT Group 4.
*** Patent is set to expire in 2003.
**** JBIG2 encoded PDF files require Adobe Acrobat Reader 5.0 or later.
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