= BFL File Format =

BFL files are used for colour classification and contain the YUV image data along with information on how each pixel has been classified.

The BFL file stores the image as a series of rows, top row first. (Note: there is no meta-data about how many rows might be in the image. You have to know). For each row the file stores:

 * The YLL values for each pixel on the row (1 byte per pixel)
 * The U values
 * The V values
 * The YLH values
 * The YHL values
 * the YHH values
 * The classified colour values

See [wiki:YUVPlaneFormat YUV Plane Format] for more information on the YUV values.