| Full Name |
Brooktrout |
| Format ID |
IG_FORMAT_BRK = 3 |
| File Extension(s) |
*.brk, *.301, |
| Data Type |
Raster image |
| Data Encoding |
Binary |
| ImageGear Multipage Support |
No |
| ImageGear Alpha Channel Support |
No |
| ImageGear Platforms Support |
WIN32, WIN64, Unix, Unix64, MAC, .NET, .NET64 |
ImageGear Supported Versions:
Version 1
ImageGear Supported Features:
- IG_FLTR_DETECTSUPPORT - autodetect
- IG_FLTR_PAGEREADSUPPORT - single page file reading
- IG_FLTR_PAGEINSERTSUPPORT - single-page file writing
ImageGear Read Support:
- IG_COMPRESSION_CCITT_G3 - Indexed RGB: 1 bpp
- IG_COMPRESSION_CCITT_G32D - Indexed RGB: 1 bpp
ImageGear Write Support:
- IG_COMPRESSION_CCITT_G3 - Indexed RGB: 1 bpp
- IG_COMPRESSION_CCITT_G32D - Indexed RGB: 1 bpp
 |
When saving an image, the image must have horizontal resolution of 200 DPI and vertical resolution of 100 or 200 DPI. |
ImageGear Filter Control Parameters:
| Filter Control Parameter |
Type |
Default Value |
Available Values |
Description |
| COMPRESSION |
WORD |
BTR_COMP_G3 |
BTR_COMP_G3BTR_COMP_G3_2D |
Compression for saving. |
Comments:
A Brooktrout file consists of a CCITT Group 3 (G3) compressed file with a 128-byte header designed by Brooktrout Technology. The header fields include a constant that identifies the file as Brooktrout, a version number, the horizontal and vertical resolutions of the image in dots/mm, the number of bits per pixel, and the number of pixels per line.
