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diff --git a/man/blind-matrix-rotate.1 b/man/blind-matrix-rotate.1 new file mode 100644 index 0000000..b97206b --- /dev/null +++ b/man/blind-matrix-rotate.1 @@ -0,0 +1,45 @@ +.TH BLIND-MATRIX-ROTATE 1 blind +.SH NAME +blind-matrix-rotate - Create an affine 2D-transformation matrix for rotation +.SH SYNOPSIS +.B blind-matrix-rotate +[-c] +.SH DESCRIPTION +.B blind-matrix-rotate +creates an affine 2D-transformation matrix for +rotation. 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 1 pixel, +this pixel holds the number of radians the image +is to be rotated clockwise around origo. +.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 NOTES +The image is rotated anti-clockwise if the Y-axis +grows upwards rather than downwards. +.SH SEE ALSO +.BR blind (7), +.BR blind-from-text (1), +.BR blind-matrix-orthoproject (1), +.BR blind-matrix-reflect (1), +.BR blind-matrix-scale (1), +.BR blind-matrix-shear (1), +.BR blind-matrix-translate (1), +.BR blind-matrix-transpose (1) +.SH AUTHORS +Mattias Andrée +.RI < maandree@kth.se > |