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	blind-affine-colour.1 - blind - suckless command-line video editing utility
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	blind-affine-colour.1 (1663B)
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	1 .TH BLIND-AFFINE-COLOUR 1 blind
	2 .SH NAME
	3 blind-affine-colour - Apply an affine transformation to the colours in a…
	4 .SH SYNOPSIS
	5 .B blind-affine-colour
	6 [-alp]
	7 .I matrix-stream
	8 .SH DESCRIPTION
	9 .B blind-affine-colour
	10 reads a video from stdin and a matrix video from
	11 .I matrix-stream
	12 and multiplies colours from stdin with matrices from
	13 .I matrix-stream
	14 and prints the resulting video to stdout.
	15 .P
	16 Each frame in
	17 .I matrix-stream
	18 is a matrix and shall have the width and height 5.
	19 Each pixel in a frame is a cell in the matrix,
	20 the pixels luma is multiples by its alpha value
	21 to determine the value of the matrix cell.
	22 .SH OPTIONS
	23 .TP
	24 .B -a
	25 The width and height of the matrix shall be 4
	26 instead of 5 (reduced by 1) and the alpha values
	27 of the pixels shall not be modified.
	28 .TP
	29 .B -l
	30 The width and height of the matrix shall be 4
	31 instead of 5 (reduced by 1) making the transformation
	32 linear instead of affine.
	33 .TP
	34 .B -p
	35 Each frame in
	36 .I matrix-stream
	37 shall contain one matrix per pixel in a frame in
	38 stdin. The video in
	39 .I matrix-stream
	40 shall be 5, 4, or 3, depending on whether
	41 .B -a
	42 and
	43 .B -l
	44 are specified, times are wide and tall as the
	45 video in stdin.
	46 .SH NOTES
	47 If both
	48 .B -a
	49 and
	50 .B -l
	51 are specified, the matrices shall have the
	52 width and height 3 instead of 5.
	53 .SH REQUIREMENTS
	54 .B blind-affine-colour
	55 requires enough free memory to load 5, 4, or 3,
	56 depending on whether
	57 .B -a
	58 and
	59 .B -l
	60 are specified, full rows from
	61 .I matrix-stream
	62 into memory. A frame requires 32 bytes per pixel
	63 it contains.
	64 .SH SEE ALSO
	65 .BR blind (7),
	66 .BR blind-arithm (1),
	67 .BR blind-invert-matrix (1),
	68 .BR blind-multiply-matrice (1)
	69 .SH AUTHORS
	70 Mattias Andrée
	71 .RI < [email protected] >