blind-matrix-reflect.1 (1369B)
1 .TH BLIND-MATRIX-REFLECT 1 blind 2 .SH NAME 3 blind-matrix-reflect - Create an affine 2D-transformation matrix for reflection about a line 4 .SH SYNOPSIS 5 .B blind-matrix-reflect 6 [-c] 7 .SH DESCRIPTION 8 .B blind-matrix-reflect 9 creates an affine 2D-transformation matrix for 10 reflection about a line. The parameters for the 11 matrix is read in stdin in format of a blind video, 12 one matrix per frame in stdin created and printed 13 to stdout in format of a blind video. 14 .P 15 Each frame in stdin shall contain exactly 2 pixels, 16 the first pixel holds the x-value of the line going 17 out from origo the image is reflected around, the 18 second pixel holds the y-value of this line. 19 .P 20 The luma (encoding in the Y-channel, the second 21 channel) multiplied by the alpha (the fourth channel) 22 of the input pixels are used as the values. Each 23 values in the resulting matrices are stored 24 in all channels. 25 .SH OPTIONS 26 .TP 27 .B -c 28 Create different matrices for each channel. Use 29 values from each channel in stdin to create 30 matrices whose values are stored in the same 31 channels in stdout. 32 .SH SEE ALSO 33 .BR blind (7), 34 .BR blind-from-text (1), 35 .BR blind-matrix-orthoproject (1), 36 .BR blind-matrix-rotate (1), 37 .BR blind-matrix-scale (1), 38 .BR blind-matrix-shear (1), 39 .BR blind-matrix-translate (1), 40 .BR blind-matrix-transpose (1), 41 .BR blind-multiply-matrices (1) 42 .SH AUTHORS 43 Mattias Andrée 44 .RI < maandree@kth.se >