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	blind-temporal-mean.1 - blind - suckless command-line video editing utility
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	blind-temporal-mean.1 (1597B)
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	1 .TH BLIND-TEMPORAL-MEAN 1 blind
	2 .SH NAME
	3 blind-temporal-mean - Calculate the mean over all frames in a video for …
	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 < [email protected] >