Dr. Halo CUT
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|formattype=electronic | |formattype=electronic | ||
|subcat=Graphics | |subcat=Graphics | ||
− | |extensions={{ext|cut}}, {{ext|pal}} | + | |extensions={{ext|cut}}, {{ext|pal}}, {{ext|pic}} |
− | |pronom={{PRONOM|x-fmt/316}} | + | |pronom={{PRONOM|x-fmt/316}}, {{PRONOM|fmt/1186}} |
}} | }} | ||
− | '''Dr. Halo''' | + | '''Dr. Halo''' was a line of raster image editing software for MS-DOS. It has a well-known device-independent '''.CUT''' image format, which uses [[Run-length encoding|RLE compression]] (in a way which is similar to, but not the same as, [[PackBits]]). CUT files are sometimes accompanied by '''.PAL''' palette files. |
− | + | There is also a device-dependent '''.PIC''' image format. We have not located any details about PIC format. | |
+ | |||
+ | == Format details == | ||
+ | All CUT images have exactly 8 bits per pixel, but all 8 bits might not be used. It is common for the only color codes used by an image to be 0 and 1. | ||
+ | |||
+ | It is not clear what to do if no palette file is present. Interpreting the image as grayscale, with black=0, seems to be standard practice. But different viewers use different logic for guessing the code that should be interpreted as white. | ||
== Software == | == Software == | ||
− | * [[ImageMagick]] (format named "CUT"; read | + | * [[ImageMagick]] (format named "CUT"; read only) |
− | * [[XnView]] (read | + | * [[Konvertor]] (read only) |
+ | * [[XnView]] (read only) | ||
+ | * [[Farbfeld Utilities]] (read/write) | ||
+ | * [[Tom's Editor]] | ||
+ | * [[Tom's Viewer]] | ||
+ | * Dr. Halo (read/write) | ||
+ | ** [https://archive.org/details/Dr.HaloIII3.0KyeOEM Dr. Halo III] - Floppy disk images from archive.org | ||
+ | ** [https://archive.org/details/Dr.HaloPlus3.00QTronixOEMGerman Dr. Halo Plus 3.00 (German)] - Floppy disk images from archive.org | ||
+ | ** Possibly relevant: [http://cd.textfiles.com/rbbsv3n1/dull/drhalo.unp drhalo.unp] | ||
== Sample files == | == Sample files == | ||
* http://cd.textfiles.com/fantaziasampler/CLIPART/CUT/ | * http://cd.textfiles.com/fantaziasampler/CLIPART/CUT/ | ||
+ | * http://cd.textfiles.com/gameempire/SOFT/NEW/PRO7/ | ||
+ | * http://cd.textfiles.com/librisbritannia/GRAPHICS/CLIPDRHA/ ... | ||
+ | ** [http://cd.textfiles.com/librisbritannia/GRAPHICS/CLIPDRHA/1169.ZIP 1169.ZIP] - PIC format | ||
+ | * https://telparia.com/fileFormatSamples/image/drHalo/ | ||
− | == | + | == Links == |
* {{EGFF|drhalo|Dr. Halo File Format Summary}}, from the [[Encyclopedia of Graphics File Formats]] | * {{EGFF|drhalo|Dr. Halo File Format Summary}}, from the [[Encyclopedia of Graphics File Formats]] | ||
* [http://www.textfiles.com/programming/FORMATS/pix_fmt.txt Picture format docs (of a number of formats including this one)] | * [http://www.textfiles.com/programming/FORMATS/pix_fmt.txt Picture format docs (of a number of formats including this one)] | ||
+ | |||
+ | [[Category:Multi-file formats]] |
Revision as of 21:19, 5 August 2020
Dr. Halo was a line of raster image editing software for MS-DOS. It has a well-known device-independent .CUT image format, which uses RLE compression (in a way which is similar to, but not the same as, PackBits). CUT files are sometimes accompanied by .PAL palette files.
There is also a device-dependent .PIC image format. We have not located any details about PIC format.
Contents |
Format details
All CUT images have exactly 8 bits per pixel, but all 8 bits might not be used. It is common for the only color codes used by an image to be 0 and 1.
It is not clear what to do if no palette file is present. Interpreting the image as grayscale, with black=0, seems to be standard practice. But different viewers use different logic for guessing the code that should be interpreted as white.
Software
- ImageMagick (format named "CUT"; read only)
- Konvertor (read only)
- XnView (read only)
- Farbfeld Utilities (read/write)
- Tom's Editor
- Tom's Viewer
- Dr. Halo (read/write)
- Dr. Halo III - Floppy disk images from archive.org
- Dr. Halo Plus 3.00 (German) - Floppy disk images from archive.org
- Possibly relevant: drhalo.unp
Sample files
- http://cd.textfiles.com/fantaziasampler/CLIPART/CUT/
- http://cd.textfiles.com/gameempire/SOFT/NEW/PRO7/
- http://cd.textfiles.com/librisbritannia/GRAPHICS/CLIPDRHA/ ...
- 1169.ZIP - PIC format
- https://telparia.com/fileFormatSamples/image/drHalo/