Cartesian Perceptual Compression
Cartesian Perceptual Compression (abbreviated CPC, with filename extension .cpc) is a proprietary image file format. It was designed for high compression of black-and-white raster Document Imaging for archival scans. CPC is lossy, has no lossless mode, and is restricted to bi-tonal images. The company which controls the patented format claims it is highly effective in the compression of text, black-and-white (halftone) photographs, and line art. The format is intended for use in the web distribution of legal documents, design plans, and geographical plot maps.
- Comment
- enCartesian Perceptual Compression (abbreviated CPC, with filename extension .cpc) is a proprietary image file format. It was designed for high compression of black-and-white raster Document Imaging for archival scans. CPC is lossy, has no lossless mode, and is restricted to bi-tonal images. The company which controls the patented format claims it is highly effective in the compression of text, black-and-white (halftone) photographs, and line art. The format is intended for use in the web distribution of legal documents, design plans, and geographical plot maps.
- Has abstract
- enCartesian Perceptual Compression (abbreviated CPC, with filename extension .cpc) is a proprietary image file format. It was designed for high compression of black-and-white raster Document Imaging for archival scans. CPC is lossy, has no lossless mode, and is restricted to bi-tonal images. The company which controls the patented format claims it is highly effective in the compression of text, black-and-white (halftone) photographs, and line art. The format is intended for use in the web distribution of legal documents, design plans, and geographical plot maps. Viewing and converting documents in the CPC format currently requires the download of proprietary software. Although viewing CPC documents is free, as is converting CPC images to other formats, conversion to CPC format requires a purchase. JSTOR, a United States-based online system for archiving academic journals, converted its online archives to CPC in 1997. The CPC files are used to reduce storage requirements for its online collection, but are temporarily converted on their servers to GIF for display, and to PDF for printing. JSTOR still scans to TIFF G4 and considers those files its preservation masters.
- Hypernym
- Format
- Is primary topic of
- Cartesian Perceptual Compression
- Label
- enCartesian Perceptual Compression
- Link from a Wikipage to an external page
- www.digitalpreservation.gov/formats/fdd/fdd000007.shtml
- www.cartesianinc.com/Tech/
- web.archive.org/web/20081013204500/http:/digitalarchive.oclc.org/da/ViewObjectMain.jsp%3Ffileid=0000070519%3A000006287396&reqid=33021%23faq
- Link from a Wikipage to another Wikipage
- Blueprint
- Category:Graphics file formats
- Document Imaging
- File format
- Filename
- Image file
- Image file formats
- JSTOR
- Lossless
- Lossy
- Photograph
- Raster graphics
- SameAs
- 4g6v6
- Cartesian Perceptual Compression
- m.08pzbm
- Q5047276
- Перцепційне Декартове стиснення
- Subject
- Category:Graphics file formats
- WasDerivedFrom
- Cartesian Perceptual Compression?oldid=874203645&ns=0
- WikiPageLength
- 1879
- Wikipage page ID
- 3079185
- Wikipage revision ID
- 874203645
- WikiPageUsesTemplate
- Template:Comp-sci-stub
- Template:Graphics file formats