blind-unpremultiply.1 (671B)
1 .TH BLIND-UNPREMULTIPLY 1 blind 2 .SH NAME 3 blind-unpremultiply - Unpremultiply the alpha channel of a video 4 .SH SYNOPSIS 5 .B blind-unpremultiply 6 [-xyz] 7 .SH DESCRIPTION 8 .B blind-unpremultiply 9 reads a video from stdin and divides the colour 10 with the alpha value for each pixel, and prints 11 the resulting video to stdout, effectively 12 undoing affects of 13 .BR blind-unpremultiply (1). 14 .SH OPTIONS 15 .TP 16 .B -x 17 Do not modify the X channel (the first channel). 18 .TP 19 .B -y 20 Do not modify the Y channel (the second channel). 21 .TP 22 .B -z 23 Do not modify the Z channel (the third channel). 24 .SH SEE ALSO 25 .BR blind (7), 26 .BR blind-premultiply (1) 27 .SH AUTHORS 28 Mattias Andrée 29 .RI < maandree@kth.se >