Dr. Halo CUT
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. (This format is unrelated to the Amstrad .cut file format.)
There is also a device-dependent .PIC image format. We have not located any details about PIC format.
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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/
- https://web.archive.org/web/20191231015527/http://whatis.rest7.com/how-to-open-cut-file