This is the command pfsclamp that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
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.
Use pfsclamp online using onworks.net services
