This is the command ra_t16 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
ra_t16 - convert RADIANCE picture to/from Targa 16 or 24-bit image file
SYNOPSIS
ra_t16 [ -2 ][ -3 ][ -g gamma ][ -e +/-stops ] [ input [ output ] ]
ra_t16 -r [ -g gamma ][ -e +/-stops ] [ input [ output ] ]
DESCRIPTION
Ra_t16 converts between RADIANCE and Targa 16-bit or 24-bit RGB image files (type 2 in
Targa's documentation). In the default mode, a RADIANCE picture is converted to an RGB
file of the same horizontal and vertical dimensions with 16-bits per pixel. The -3 option
tells the program to produce a 24-bit image file instead. The -g option specifies the
exponent used in gamma correction; the default value is 2.2. An exponent of 1.0 turns
gamma correction off. The -e option specifies an exposure compensation in f-stops (powers
of two). Only integer stops are allowed, for efficiency. The -r option invokes a reverse
conversion, from a 16-bit or 24-bit Targa file to a RADIANCE picture. The determination
of depth is made automatically on reverse translation, so the -2 and -3 options are not
necessary. If the output file is missing, the standard output is used.
AUTHORS
Greg Ward
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