Band Interleaved by Line. Multi-channel image format where data is recorded by a channel for each line, that is: record 1: line 1 in channel 1 record 2: line 1 in channel 2 record n: line 1 in channel n record n + 1: line 2 in channel 1 ... record n x m: line m in channel n for m lines and n channels in the image.