CUT

Full Name	Dr. Halo
Format ID	IG_FORMAT_CUT = 7
File Extension(s)	.cut, .pal (for the separately stored palette)
Data Type	Raster image
Data Encoding	Binary
Color Profile Support	No
ImageGear Multi-Page Support	No
ImageGear Alpha Channel Support	No
ImageGear Platforms Support	WIN32, WIN64, .NET, .NET64, Unix, Unix64, MAC

ImageGear Supported Versions:

N/A

ImageGear Supported Features:

IG_FLTR_DETECTSUPPORT - auto-detection
IG_FLTR_PAGEREADSUPPORT - single page file reading
IG_FLTR_PAGEINSERTSUPPORT - single-page file writing

ImageGear Read Support:

IG_COMPRESSION_RLE - Indexed RGB: 8 bpp

ImageGear Write Support:

IG_COMPRESSION_RLE - Indexed RGB: 8 bpp

ImageGear Filter Control Parameters:

Comments:

The Dr. Halo file format is associated with the HALO Image File Format Library, the Dr. Halo III paint program, and other applications created by Media Cybernetics.

This format consists of two separate files, one with an extension of .CUT and the other with an extension of .PAL. The .CUT file contains the image data and the .PAL file contains the color palette.

The .CUT file begins with a simple header of just three data fields: width and height of the image data (pixels by scan lines), and a reserved field intended for use with any future expansions of the header. The image data is always RLE-encoded and follows the header.

The palette file (.PAL) contains a header, with information about the type of palette used, and the size and maximum values of the Red, Green, and Blue components. The palette can be hardware-specific, in which case it contains additional data.

When a CUT image is loaded into ImageGear, the palette is initialized to a grayscale ramp. In order to achieve the original colors of the palette (PAL file), it must be loaded separately into the IGPalette Object attached to IGPage Object.

When saving an image into the Dr. Halo format, ImageGear creates a .CUT file. In order to save the palette (PAL file), it must be saved separately.

See the section RLE for more information.

References Used:

Murray, James D. and William vanRyper. Encyclopedia of Graphics File Formats. Sebastopol, CA: O'Reilly & Associates, Inc., 1994.