blind-temporal-mean.1 (1597B)
1 .TH BLIND-TEMPORAL-MEAN 1 blind 2 .SH NAME 3 blind-temporal-mean - Calculate the mean over all frames in a video for each pixel 4 .SH SYNOPSIS 5 .B blind-temporal-mean 6 [-d | -g | -h | -l 7 .I power-stream 8 | -p 9 .I power-stream 10 | -v] 11 .SH DESCRIPTION 12 .B blind-temporal-mean 13 reads a video from stdin and calculates the mean 14 over all frames for each pixel, and outputs a 15 single frame video to stdout with the mean for 16 each pixel. 17 .P 18 Unless otherwise specified, the arithmetic mean 19 is calculated. 20 .SH OPTIONS 21 .TP 22 .B -d 23 Calculate the standard deviation. 24 .TP 25 .B -g 26 Calculate the geometric mean. 27 .TP 28 .B -h 29 Calculate the harmonic mean. 30 .TP 31 .BR -l \ \fIpower-stream\fP 32 Calculate the Lehmer mean with the power 33 specified in the same pixel in the single-frame 34 video 35 .IR power-stream . 36 .TP 37 .BR -p \ \fIpower-stream\fP 38 Calculate the power mean (Hölder mean) with 39 the power specified in the same pixel in the 40 single-frame video 41 .IR power-stream . 42 .TP 43 .B -v 44 Calculate the variance. 45 .SH REQUIREMENTS 46 .B blind-temporal-mean 47 requires enough free memory to load two full frames memory. 48 A frame requires 32 bytes per pixel it contains. If 49 .B -p 50 or 51 .B -v 52 is used, enough free memory to load three full frames 53 memory is required. If 54 .B -l 55 is used, enough free memory to load four full frames 56 memory is required. 57 .P 58 .B blind-temporal-mean 59 is optimised for simplicity rather than memory usage. 60 .SH SEE ALSO 61 .BR blind (7), 62 .BR blind-temporal-arithm (1), 63 .BR blind-spatial-arithm (1), 64 .BR blind-arithm (1), 65 .BR blind-spatial-mean (1), 66 .BR blind-mean (1), 67 .BR blind-rewrite-head (1) 68 .SH AUTHORS 69 Mattias Andrée 70 .RI < maandree@kth.se >