This is the command ran2tiff 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
ran2tiff - expose and convert a RADIANCE animation to TIFF frames
SYNOPSIS
ran2tiff [ -W prev_frame_wt ][ -H histo ][ -D dir ] [ pcond opts ] [ ra_tiff opts ]
frame1.hdr frame2.hdr ..
DESCRIPTION
Ran2tiff takes an animated sequence of Radiance pictures and converts them by calling
pcond(1) and ra_tiff(1) in such a way that exposure changes gradually from one frame to
the next. It accomplishes this by computing a histogram for each image and blending it
with a weighted histogram from the previous frame, where the weight is set by the -W
option, or 0.9 by default. A value of 0.5 would mean that the previous frame carries 1/2
the weight of the current one, and the frame before that 1/4, 1/8 before that, and so on.
The -H option specifies a histogram file to be used to ensure continuous exposure between
the current sequence and one before it. If the file does not exist, it will be created at
the end of the conversion. If it does exist, its contents will be used as the histogram
at the end of the previous sequence.
The -D option may be used to specify an output directory for the resulting TIFF frames.
Otherwise, the current directory will be used. The output file names will correspond to
the input names, but with a ".tif" suffix.
Ran2tiff also accepts the standard options for pcond and ra_tiff, though output to LogLuv
TIFF formats is not supported. (There would be no point in adjusting the exposure if the
output were HDR.)
EXAMPLE
To convert a sequence of frames using a rapid human exposure response and LZW compression
on the output:
ran2tiff -W 0.7 -h -z frame*.hdr
Similar to fieldcomb(1), this program works well with the "TRANSFER" facility of
ranimate(1).
Use ran2tiff online using onworks.net services
