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)