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This is the command tiff2rgba 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


tiff2rgba - convert a TIFF image to RGBA color space

SYNOPSIS


tiff2rgba [ options ] input.tif output.tif

DESCRIPTION


Tiff2rgba converts a wide variety of TIFF images into an RGBA TIFF image. This includes
the ability to translate different color spaces and photometric interpretation into RGBA,
support for alpha blending, and translation of many different bit depths into a 32bit RGBA
image.

Internally this program is implemented using the TIFFReadRGBAImage() function, and it
suffers any limitations of that image. This includes limited support for > 8
BitsPerSample images, and flaws with some esoteric combinations of BitsPerSample,
photometric interpretation, block organization and planar configuration.

The generated images are stripped images with four samples per pixel (red, green, blue and
alpha) or if the -n flag is used, three samples per pixel (red, green, and blue). The
resulting images are always planar configuration contiguous. For this reason, this
program is a useful utility for transform exotic TIFF files into a form ingestible by
almost any TIFF supporting software.

OPTIONS


-c Specify a compression scheme to use when writing image data: -c none for no
compression (the default), -c packbits for the PackBits compression algorithm, -c
zip for the Deflate compression algorithm, -c jpeg for the JPEG compression
algorithm, and -c lzw for Lempel-Ziv & Welch.

-r Write data with a specified number of rows per strip; by default the number of
rows/strip is selected so that each strip is approximately 8 kilobytes.

-b Process the image one block (strip/tile) at a time instead of by reading the whole
image into memory at once. This may be necessary for very large images on systems
with limited RAM.

-n Drop the alpha component from the output file, producing a pure RGB file.
Currently this does not work if the -b flag is also in effect.

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