PAL colour decoding


License: Freeware
Downloads: 5
Op. System: Windows 98/NT
Last updated: 2008-10-30
File size: 367 KB
Publisher: William Andrew Steer
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Publisher description for PAL colour decoding

PAL colour decoding program icon

You can use PAL colour decoding to decode any image. It has different color filter so that you can use to edit any desired image. his release can decode single-field PAL, or full-Frame NTSC colour pictures. For most standard PAL, you need to set the subcarrier Frequency to Fsc=4.43361875MHz, while for the usual NTSC, Fsc=3.579545MHz. You can set an arbitrary rate at which the picture was sampled, and the brightness and colour-saturation can be adjusted. The expected position of the "back porch" (black-level reference) and sub-carrier burst is assumed, based on full 64us scan lines, beginning with the h-sync. For proper display the program requires at least a 32768-colour (15-bit) graphics display setting. The .ZIP archive includes a example PAL-coded Capture, img129.bmp, sampled at 15MHz, which can be used to demonstrate the PAL-decoding program. Extracts from the source code are available on request.

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