Utah RLE
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|subcat=Graphics | |subcat=Graphics | ||
|extensions={{ext|rle}} | |extensions={{ext|rle}} | ||
| + | |released=≤1987 | ||
}} | }} | ||
| − | '''Utah RLE''' is a raster image file format associated with the '''Utah Raster Toolkit''' software. | + | '''Utah RLE''' (or '''URT RLE''', or sometimes just '''RLE''') is a raster image file format associated with the '''Utah Raster Toolkit''' software. |
| + | == 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 <code>0x52 0xCC</code>. | ||
| + | |||
== 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 == | ||
| − | * [ | + | * [[Netpbm]]: rletopnm, pnmtorle (uses a fork of the Utah Raster Toolkit) |
| − | * [ftp://ftp.uni-potsdam.de/pub/unix/graphics/imageprocessing/urt/ Utah Raster Toolkit] | + | * [[ImageMagick]] (format named "RLE"; read-only) |
| + | * Utah Raster Toolkit source code: [ftp://ftp.graphicsmagick.org/pub/GraphicsMagick/delegates/ GraphicsMagick delegates] → urt-* | ||
| + | * [ftp://ftp.uni-potsdam.de/pub/unix/graphics/imageprocessing/urt/ Utah Raster Toolkit source code] | ||
| + | |||
| + | == Sample files == | ||
| + | * [ftp://ftp.uni-potsdam.de/pub/unix/graphics/imageprocessing/urt/urt-img.tar urt-img.tar] | ||
| + | * {{DexvertSamples|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]] | ||
| + | * [https://archive.org/details/mac_Graphics_File_Formats_Second_Edition_1996/page/n943/mode/2up Encyclopedia of graphics file formats] | ||
Latest revision as of 02:56, 28 December 2023
Utah RLE (or URT RLE, or sometimes just RLE) is a raster image file format associated with the Utah Raster Toolkit software.
Contents |
[edit] 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
[edit] Identification
Files begin with signature bytes 0x52 0xCC.
[edit] Specifications
- Design of the Utah RLE format (figure 2-1 and 2-2 are not included)
[edit] 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
