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diff --git a/man/blind-matrix-scale.1 b/man/blind-matrix-scale.1 new file mode 100644 index 0000000..9d35527 --- /dev/null +++ b/man/blind-matrix-scale.1 @@ -0,0 +1,43 @@ +.TH BLIND-MATRIX-SCALE 1 blind +.SH NAME +blind-matrix-scale - Create an affine 2D-transformation matrix for scaling +.SH SYNOPSIS +.B blind-matrix-scale +[-c] +.SH DESCRIPTION +.B blind-matrix-scale +creates an affine 2D-transformation matrix for +scaling. The parameters for the matrix is read +in stdin in format of a blind video, one matrix +per frame in stdin created and printed to stdout +in format of a blind video. +.P +Each frame in stdin shall contain exactly 2 pixel, +the first pixel holds the scale factor for the +width and the second pixel holds the scale factor +for the height. +.P +The luma (encoding in the Y-channel, the second +channel) multiplied by the alpha (the fourth channel) +of the input pixels are used as the values. Each +values in the resulting matrices are stored +in all channels. +.SH OPTIONS +.TP +.B -c +Create different matrices for each channel. Use +values from each channel in stdin to create +matrices whose values are stored in the same +channels in stdout. +.SH SEE ALSO +.BR blind (7), +.BR blind-from-text (1), +.BR blind-matrix-orthoproject (1), +.BR blind-matrix-reflect (1), +.BR blind-matrix-rotate (1), +.BR blind-matrix-shear (1), +.BR blind-matrix-translate (1), +.BR blind-matrix-transpose (1) +.SH AUTHORS +Mattias Andrée +.RI < maandree@kth.se > |