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Man page of pfsclamp
pfsclamp
Section: User Commands (1)
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NAME
pfsclamp - Clamp color and luminance channel values to be within the specified range
SYNOPSIS
pfsclamp
[--min <minimum>] [--max <maximum>]
[--percentile] [--zero] [--rgb]
DESCRIPTION
Use this command to clamp values of luminance and color channels to be
within the specified range. I.e. if a value in the channel is above
the specified maximum or below specified minimum, set the value to either
minimum or maximum.
The command operates directly on XYZ channels.
OPTIONS
- --min <val>
-
Lower bound for clamping. Default value: 0.0001 (10^-4)
- --max <val>
-
Upper bound for clamping. Default value: 100000000 (10^8)
- --percentile, -p
-
Treat given min and max values as a percentile.
- --zero, -z
-
Set values out of clamping range to zero, instead of setting to
specified maximum and minimum.
- --rgb
-
Perform clamping in RGB space.
EXAMPLES
- pfsin memorial.hdr | pfsclamp | pfsout memorial_cl.hdr
-
Remove possible out-of-range values, for examples zeros, from memorial
image.
- pfsin memorial.hdr | pfsclamp --max 0.95 -p | pfsout memorial_cl.hdr
-
Remove 5% of the brightest pixels from the original image.
SEE ALSO
pfsin(1)
pfsout(1)
BUGS
Please report bugs and comments to Rafal Mantiuk
<mantiuk@mpi-sb.mpg.de> and Grzegorz Krawczyk
<krawczyk@mpi-sb.mpg.de>.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- EXAMPLES
-
- SEE ALSO
-
- BUGS
-
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Time: 12:35:04 GMT, April 24, 2007