Utah RLE
From Just Solve the File Format Problem
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== Specifications == | == Specifications == | ||
| − | * [http://www.martinreddy.net/gfx/2d/RLE.txt Design of the Utah RLE format] | + | * [http://www.martinreddy.net/gfx/2d/RLE.txt Design of the Utah RLE format] (figure 2-1 and 2-2 are not included) |
== Software == | == Software == | ||
| Line 29: | Line 29: | ||
== Sample files == | == Sample files == | ||
* [ftp://ftp.uni-potsdam.de/pub/unix/graphics/imageprocessing/urt/urt-img.tar urt-img.tar] | * [ftp://ftp.uni-potsdam.de/pub/unix/graphics/imageprocessing/urt/urt-img.tar urt-img.tar] | ||
| + | * https://telparia.com/fileFormatSamples/image/utahRLE/ | ||
== External links == | == External links == | ||
* [http://www.cs.utah.edu/gdc/projects/urt/ Utah Raster Toolkit documentation] | * [http://www.cs.utah.edu/gdc/projects/urt/ Utah Raster Toolkit documentation] | ||
* {{EGFF|utah|Utah RLE File Format Summary}}, from the [[Encyclopedia of Graphics File Formats]] | * {{EGFF|utah|Utah RLE File Format Summary}}, from the [[Encyclopedia of Graphics File Formats]] | ||
| + | * [https://archive.org/details/mac_Graphics_File_Formats_Second_Edition_1996/page/n943/mode/2up Encyclopedia of graphics file formats] | ||
Revision as of 18:24, 14 February 2023
Utah RLE (or URT RLE, or sometimes just RLE) is a raster image file format associated with the Utah Raster Toolkit software.
Contents |
Format
A Utah RLE file contains the following entities, in this order. (Not all of them are present in every file.)
- Fixed 15-byte header
- Background color
- Color map
- Comments
- Pixel data
Identification
Files begin with signature bytes 0x52 0xCC.
Specifications
- Design of the Utah RLE format (figure 2-1 and 2-2 are not included)
Software
- Netpbm: rletopnm, pnmtorle (uses a fork of the Utah Raster Toolkit)
- ImageMagick (format named "RLE"; read-only)
- Utah Raster Toolkit source code: GraphicsMagick delegates → urt-*
- Utah Raster Toolkit source code
