NAME

       pfsoutimgmagick - Write images or frames using Image Magick library

SYNOPSIS

       pfsoutimgmagick  [--linear]  [--quality  <val>]  [--bit-depth]  [--frames <range>]) <file>
       [<file>...]

DESCRIPTION

       This command can write images or frames in the multitude of image formats supported by the
       ImageMagick  library.  This includes but is not limited to: BMP, JPG, PNG, GIF, EPS, TIFF,
       DPX. See the manual page of ImageMagick for the full list of available formats.

       pfsoutimgmagick reads images or frames in pfs format from the Standard  Input  and  writes
       them under the specified file name(s).

       The  input  of  pfsinimgmagick  must  be  within 0-1 range. If LUMINANCE tag set is set to
       RELATIVE or ABSOLUTE, the linear values will  be  gamma  corrected,  assuming  sRGB  color
       space. Use --linear switch to disable gamma correction.

       The  images  are stored using the bit-depth for which the ImageMagick library was compiled
       (default is 16 bit). Note that some formats (for example JPEG)  do  not  support  encoding
       more  than  8  bits  per  color channel. To use higher bit-depths, store images in the PNG
       format.

       This command stores 'ALPHA' channel if it is present in the pfs stream.

       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 proceedings 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 option will compress contrast to make sure that tone values
              are properly shown on a display. It should be only used with linearized (not  gamma
              corrected) images that are normalized to the 0-1 range.

       --quality <val>, -q <val>
              Set JPEG/PNG compression level from 1 to 100. Default 75.

       --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
              (usually 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 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 before writing an image (--srgb).

BUGS

       pfsoutimgmagick can not write frames to the standard output.

       Please  report  bugs  and   comments   on   implementation   to   the   discussion   group
       http://groups.google.com/group/pfstools

SEE ALSO

       pfsout(1) ImageMagick(1)

                                                                               pfsoutimgmagick(1)