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pfsoutppm(1) General Commands Manual pfsoutppm(1) NAME pfsoutppm, pfsouttiff, pfsoutrgbe, pfsoutexr - Write images or frames in one of the several formats SYNOPSIS pfsoutppm (<file> [--srgb] [--frames <range>]) [<file>...] pfsouttiff (<file> [--srgb] [--frames <range>]) [<file>...] pfsoutrgbe (<file> [--frames <range>]) [<file>...] pfsoutexr (<file> [--frames <range>]) [<file>...] DESCRIPTION This command can be used to write pfs frames piped to standard input in one of the several recognized formats. See the manual page of pfsinppm to get a list of available formats. To write images to standard output use a single dash '-' instead of filename. Each file name can contain a %d pattern, which is substituted with frame numbers. The pattern has the same syntax as C printf command. For example, you can use %04d to make the frame number four digit with pro- ceedings zeros. You can select the frames using the following options (the options must be always given after the file name): --frames <range> Range is given in mathlab / octave format: startframe:step:endframe Frame numbers start with startframe (default 0), are increased by step (default 1) and stop at endframe You can skip one of those values, for example 1:100 for frames 1,2,...,100 and 0:2: for frame 0,2,4,... up to the last file that exists. --srgb, -s Apply the sRGB non-linearity (approximately 2.2 gamma) before writing a file. This can be used instead of using pfsgamma -g 2.2 to store the result of some tone-mapping operators. The op- tion will compress contrast to make sure that tone values are properly shown on a display. It should be only used with lin- earized (not gamma corrected) images that are normalized to the 0-1 range. --bit-depth <val>, -b <val> Enforce bit-depth (per color channel). The allowed values are from 8 to 32. If not specified, the bit depth from the pfs stream ('BITDEPTH' tag) will be used instead. If the 'BITDEPTH' tag is missing, the ImageMagick default value will be used (usu- ally 16). The bit depth of actually stored file may be lower of that specified, if the file format does not support higher bit depths. EXAMPLES pfsin memorial.tiff | pfsoutrgbe memorial.hdr Converts from one HDR format to another pfsin test.jpg | pfsout test.png Convert from one image format to another. pfsin --linear test.jpg | pfsout --srgb test.png The same as above, but apply inverse gamma correction after reading an image (--linear) and then apply gamma correction be- fore writing an image (--srgb). SEE ALSO pfsout(1) pfsinppm(1) BUGS Writing TIFF files with pfsouttiff seems to be broken, but pfsoutimg- magick can be used instead. pfsout will attempt to use pfsoutimgmagick and fall back to pfsouttiff if pfstools were not compiled with Image- Magick. Please report bugs and comments on implementation to the discussion group http://groups.google.com/group/pfstools pfsoutppm(1)
NAME | SYNOPSIS | DESCRIPTION | EXAMPLES | SEE ALSO | BUGS
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