10 files changed, 332 insertions, 2 deletions
diff --git a/man/blind-apply-kernel.1 b/man/blind-apply-kernel.1
index f09cc6e..a4c28f1 100644
--- a/man/blind-apply-kernel.1
+++ b/man/blind-apply-kernel.1
@@ -63,6 +63,7 @@ A frame or row requires 32 bytes per pixel it contains.
 .SH SEE ALSO
 .BR blind (7),
 .BR blind-make-kernel (1),
+.BR blind-kernel (1),
 .BR blind-gauss-blur (1)
 .SH AUTHORS
 Mattias Andrée
diff --git a/man/blind-arithm.1 b/man/blind-arithm.1
index 6df053a..22d7fd7 100644
--- a/man/blind-arithm.1
+++ b/man/blind-arithm.1
@@ -5,7 +5,7 @@ blind-arithm - Perform simple arithmetic on a video
 .B blind-arithm
 [-axyz]
 .I operation
-.I right-hand-stream
+.IR right-hand-stream \ ...
 .SH DESCRIPTION
 .B blind-arithm
 reads left-hand operands from stdin, and right-hand
@@ -27,6 +27,16 @@ If stdin is shorter than
 the remainder of
 .I right-hand-stream
 is ignored but may be partially read.
+.P
+IF multiple
+.I right-hand-stream
+are specified, they are applied from left to right,
+with the exception for if	
+.I operation
+is
+.BR exp ,
+in which case they are applied from right to left with
+stdin applied last.
 .SH OPERATIONS
 .TP
 .B add
@@ -86,6 +96,10 @@ Do not modify the Z channel (the third channel).
 .BR blind-cross-product (1),
 .BR blind-quaternion-product (1),
 .BR blind-vector-projection (1),
+.BR blind-spatial-mean (1),
+.BR blind-spatial-arithm (1),
+.BR blind-temporal-mean (1),
+.BR blind-temporal-arithm (1),
 .BR blind-single-colour (1),
 .BR blind-set-alpha (1),
 .BR blind-set-luma (1),
diff --git a/man/blind-gauss-blur.1 b/man/blind-gauss-blur.1
index e0e84a9..7b92045 100644
--- a/man/blind-gauss-blur.1
+++ b/man/blind-gauss-blur.1
@@ -81,6 +81,7 @@ memory. A frame requires 32 bytes per pixel it contains.
 .BR blind-single-colour (1),
 .BR blind-time-blur (1),
 .BR blind-make-kernel (1),
+.BR blind-kernel (1),
 .BR blind-apply-kernel (1)
 .SH AUTHORS
 Mattias Andrée
diff --git a/man/blind-kernel.1 b/man/blind-kernel.1
new file mode 100644
index 0000000..df789cc
--- /dev/null
+++ b/man/blind-kernel.1
@@ -0,0 +1,116 @@
+.TH BLIND-KERNEL 1 blind
+.SH NAME
+blind-kernel - Create a convolution matrix
+.SH SYNOPSIS
+.B blind-kernel
+[-xyza]
+.I kernel
+.RI [ parameter ]\ ...
+.SH DESCRIPTION
+.B blind-kernel
+creates a convolution matrix that can be applied to
+a video using
+.BR blind-apply-kernel (1).
+The convolution matrix is created from a set
+of standard formulae. The formula is selected
+using the
+.I kernel
+argument and is tuned with
+.IR kernel -specific
+.IR parameter s.
+.SH KERNELS
+.TP
+.BI kirsch\  direction
+Create a Kirsch kernel with the specified
+.IR direction .
+The
+.I direction
+must be
+.B 1
+or
+.BR N ;
+.BR 2 ,
+.BR NW ,
+or
+.BR WN ;
+.BR 3
+or
+.BR W ;
+.BR 4 ,
+.BR SW ,
+or
+.BR WS ;
+.BR 5
+or
+.BR S ;
+.BR 6 ,
+.BR SE ,
+or
+.BR ES ;
+.BR 7
+or
+.BR E ;
+or
+.BR 8 ,
+.BR NE ,
+or
+.BR EN .
+.TP
+.RI ' \fBbox\ blur\fP '\ [-w\  weight ]\ [ spread \ |\  x-spread \  y-spread ]
+Creates a box blur kernel. Unless
+.B -w
+is used, the kernel is unweighted, otherwise it has the specified
+.IR weight .
+The kernel will have the spread 1, the specified
+.IR spread ,
+or
+.I x-spread
+as the horizontal spread and
+.I y-spread
+as the vertical spread.
+.TP
+.BR sharpen \ [-i]
+Creates a sharpen kernel. If
+.B -i
+is used, an intensified sharpen kernel is created.
+.TP
+.RI \fBgaussian\fP\ [-s\  spread ]\ [-u]\  standard-deviation
+Creates a Gaussian blur kernel with the standard deviation
+.IR standard-deviation .
+If
+.B -u
+is used, the a Gaussian unsharpen kernel is created. If
+.B -s
+is specified, the specified
+.I spread
+will be used, otherwise the spread will be selected automatically.
+.SH OPTIONS
+.TP
+.B -a
+Apply the values to the alpha channel, set the
+values for all unselected channels to zero.
+.TP
+.B -x
+Apply the values to the X channel, set the values
+for all unselected channels to zero.
+.TP
+.B -y
+Apply the values to the Y channel, set the values
+for all unselected channels to zero.
+.TP
+.B -z
+Apply the values to the Z channel, set the values
+for all unselected channels to zero.
+.SH NOTES
+.B blind-make-kernel
+Create a single frame, to that it can be stored to
+disc. When applying it to a video, you want to use
+.BR blind-repeat (1).
+.SH SEE ALSO
+.BR blind (7),
+.BR blind-apply-kernel (1),
+.BR blind-kernel (1),
+.BR blind-repeat (1)
+.SH AUTHORS
+Mattias Andrée
+.RI < maandree@kth.se >
diff --git a/man/blind-make-kernel.1 b/man/blind-make-kernel.1
index 903f489..69e3739 100644
--- a/man/blind-make-kernel.1
+++ b/man/blind-make-kernel.1
@@ -73,11 +73,12 @@ for all unselected channels to zero.
 .SH NOTES
 .B blind-make-kernel
 Create a single frame, to that it can be stored to
-disk. When applying it to a video, you want to use
+disc. When applying it to a video, you want to use
 .BR blind-repeat (1).
 .SH SEE ALSO
 .BR blind (7),
 .BR blind-apply-kernel (1),
+.BR blind-kernel (1),
 .BR blind-repeat (1)
 .SH AUTHORS
 Mattias Andrée
diff --git a/man/blind-spatial-arithm.1 b/man/blind-spatial-arithm.1
new file mode 100644
index 0000000..f512944
--- /dev/null
+++ b/man/blind-spatial-arithm.1
@@ -0,0 +1,35 @@
+.TH BLIND-SPATIAL-ARITHM 1 blind
+.SH NAME
+blind-spatial-arithm - Perform simple arithmetic over all pixels for each frame in a video
+.SH SYNOPSIS
+.B blind-spatial-arithm
+.I operation
+.SH DESCRIPTION
+.B blind-spatial-arithm
+reads a video from stdin and applies an arithmetic
+operation over all pixels, for each frame in the
+video, and prints the resulting video, with one
+pixel in each frame, to stdout.
+.SH OPERATIONS
+.TP
+.B add
+Calculate the sum of the operands.
+.TP
+.B mul
+Calculate the product of the operands.
+.TP
+.B min
+Select the lowest operand.
+.TP
+.B max
+Select the highest operand.
+.SH SEE ALSO
+.BR blind (7),
+.BR blind-temporal-arithm (1),
+.BR blind-arithm (1),
+.BR blind-spatial-mean (1),
+.BR blind-temporal-mean (1),
+.BR blind-rewrite-head (1)
+.SH AUTHORS
+Mattias Andrée
+.RI < maandree@kth.se >
diff --git a/man/blind-spatial-mean.1 b/man/blind-spatial-mean.1
new file mode 100644
index 0000000..74ffa53
--- /dev/null
+++ b/man/blind-spatial-mean.1
@@ -0,0 +1,48 @@
+.TH BLIND-SPATIAL-MEAN 1 blind
+.SH NAME
+blind-spatial-mean - Calculate the mean over all pixel for each frame in a video
+.SH SYNOPSIS
+.B blind-spatial-mean
+[-g | -h | -l
+.I power
+| -p
+.I power
+| -v]
+.SH DESCRIPTION
+.B blind-spatial-mean
+reads a video from stdin and calculates the mean
+over all pixels for frames, and outputs a
+video with one pixel in each frame, to stdout with
+the mean for each frame.
+.P
+Unless otherwise specified, the arithmetic mean
+is calculated.
+.SH OPTIONS
+.TP
+.B -g
+Calculate the geometric mean.
+.TP
+.B -h
+Calculate the harmonic mean.
+.TP
+.BR -l \ \fIpower\fP
+Calculate the Lehmer mean with the specified
+.IR power .
+.TP
+.BR -p \ \fIpower\fP
+Calculate the power mean (Hölder mean) with
+the specified
+.IR power .
+.TP
+.B -v
+Calculate the variance.
+.SH SEE ALSO
+.BR blind (7),
+.BR blind-temporal-arithm (1),
+.BR blind-spatial-arithm (1),
+.BR blind-arithm (1),
+.BR blind-temporal-mean (1),
+.BR blind-rewrite-head (1)
+.SH AUTHORS
+Mattias Andrée
+.RI < maandree@kth.se >
diff --git a/man/blind-temporal-arithm.1 b/man/blind-temporal-arithm.1
new file mode 100644
index 0000000..1ccfc2a
--- /dev/null
+++ b/man/blind-temporal-arithm.1
@@ -0,0 +1,39 @@
+.TH BLIND-TEMPORAL-ARITHM 1 blind
+.SH NAME
+blind-temporal-arithm - Perform simple arithmetic over all frames in a video for each pixel
+.SH SYNOPSIS
+.B blind-temporal-arithm
+.I operation
+.SH DESCRIPTION
+.B blind-temporal-arithm
+reads a video from stdin and applies an arithmetic
+operation over all frames in the video, for each
+pixel, and prints the resulting single-frame video
+to stdout.
+.SH OPERATIONS
+.TP
+.B add
+Calculate the sum of the operands.
+.TP
+.B mul
+Calculate the product of the operands.
+.TP
+.B min
+Select the lowest operand.
+.TP
+.B max
+Select the highest operand.
+.SH REQUIREMENTS
+.B blind-temporal-arithm
+requires enough free memory to load one full frames memory.
+A frame requires 32 bytes per pixel it contains.
+.SH SEE ALSO
+.BR blind (7),
+.BR blind-temporal-mean (1),
+.BR blind-spatial-arithm (1),
+.BR blind-spatial-mean (1),
+.BR blind-arithm (1),
+.BR blind-rewrite-head (1)
+.SH AUTHORS
+Mattias Andrée
+.RI < maandree@kth.se >
diff --git a/man/blind-temporal-mean.1 b/man/blind-temporal-mean.1
new file mode 100644
index 0000000..88e0d0c
--- /dev/null
+++ b/man/blind-temporal-mean.1
@@ -0,0 +1,60 @@
+.TH BLIND-TEMPORAL-MEAN 1 blind
+.SH NAME
+blind-temporal-mean - Calculate the mean over all frames in a video for each pixel
+.SH SYNOPSIS
+.B blind-temporal-mean
+[-g | -h | -l
+.I power
+| -p
+.I power
+| -v]
+.SH DESCRIPTION
+.B blind-temporal-mean
+reads a video from stdin and calculates the mean
+over all frames for each pixel, and outputs a
+single frame video to stdout with the mean for
+each pixel.
+.P
+Unless otherwise specified, the arithmetic mean
+is calculated.
+.SH OPTIONS
+.TP
+.B -g
+Calculate the geometric mean.
+.TP
+.B -h
+Calculate the harmonic mean.
+.TP
+.BR -l \ \fIpower\fP
+Calculate the Lehmer mean with the specified
+.IR power .
+.TP
+.BR -p \ \fIpower\fP
+Calculate the power mean (Hölder mean) with
+the specified
+.IR power .
+.TP
+.B -v
+Calculate the variance.
+.SH REQUIREMENTS
+.B blind-temporal-mean
+requires enough free memory to load two full frames memory.
+A frame requires 32 bytes per pixel it contains. If
+.B -l
+or
+.B -v
+is used, enough free memory to load three full frames
+memory is required.
+.P
+.B blind-temporal-mean
+is optimised for simplicity rather than memory usage.
+.SH SEE ALSO
+.BR blind (7),
+.BR blind-temporal-arithm (1),
+.BR blind-spatial-arithm (1),
+.BR blind-arithm (1),
+.BR blind-spatial-mean (1),
+.BR blind-rewrite-head (1)
+.SH AUTHORS
+Mattias Andrée
+.RI < maandree@kth.se >
diff --git a/man/blind.7 b/man/blind.7
index acc4bb5..2e32b5e 100644
--- a/man/blind.7
+++ b/man/blind.7
@@ -144,6 +144,9 @@ Invert the luminosity of a video
 .BR blind-invert-matrix (1)
 Invert matrix-video
 .TP
+.BR blind-kernel (1)
+Create a convolution matrix
+.TP
 .BR blind-linear-gradient (1)
 Generate a video with a linear gradient
 .TP
@@ -255,6 +258,12 @@ Apply sine-wave repetition to gradient
 .BR blind-skip-pattern (1)
 Skips frames in a video according to pattern
 .TP
+.BR blind-spatial-arithm (1)
+Perform simple arithmetic over all pixels for each frame in a video
+.TP
+.BR blind-spatial-mean (1)
+Calculate the mean over all pixel for each frame in a video
+.TP
 .BR blind-spectrum (1)
 Transform a gradient into a spectrum
 .TP
@@ -284,6 +293,12 @@ Overlay videos
 .BR tee (1)
 implementation
 .TP
+.BR blind-temporal-arithm (1)
+Perform simple arithmetic over all frames in a video for each pixel
+.TP
+.BR blind-temporal-mean (1)
+Calculate the mean over all frames in a video for each pixel
+.TP
 .BR blind-time-blur (1)
 Draw new frames on top of old frames with partial alpha
 .TP