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       dcraw - command-line decoder for raw digital photos


       fldcraw [OPTION]... [FILE]...


       fldcraw decodes raw photos, displays metadata, and extracts thumbnails.


       -v     Print verbose messages, not just warnings and errors.

       -c     Write decoded images or thumbnails to standard output.

       -e     Extract the  camera-generated  thumbnail,  not  the  raw  image.
              You’ll get either a JPEG or a PPM file, depending on the camera.

       -z     Change the access and modification times of an AVI, JPEG or  raw
              file to when the photo was taken, assuming that the camera clock
              was set to Universal Time.

       -i     Identify files but don’t decode  them.   Exit  status  is  0  if
              fldcraw  can  decode  the last file, 1 if it can’t.  -i -v shows

              fldcraw cannot decode JPEG files!!

       -d     Show the raw data as a grayscale image  with  no  interpolation.
              Good for photographing black-and-white documents.

       -D     Same as -d, but totally raw (no color scaling).

       -h     Output a half-size color image.  Twice as fast as -q 0.

       -q 0   Use high-speed, low-quality bilinear interpolation.

       -q 2   Use Variable Number of Gradients (VNG) interpolation.

       -q 3   Use Adaptive Homogeneity-Directed (AHD) interpolation.

       -f     Interpolate  RGB  as  four colors.  Use this if the output shows
              false 2x2 meshes with VNG or mazes with AHD.

       -B sigma_domain sigma_range
              Use a bilateral filter to smooth noise while  preserving  edges.
              sigma_domain  is  in  units  of  pixels, while sigma_range is in
              units of CIELab colorspace.  Try -B 2 4 to start.

       -b brightness
              By default, fldcraw writes 8-bit PGM/PPM/PAM with a BT.709 gamma
              curve  and  a 99th-percentile white point.  If the result is too
              light or too dark, -b lets you adjust it.  Default is 1.0.

       -4     Write 16-bit linear pseudo-PGM/PPM/PAM with no gamma  curve,  no
              white point, and no -b option.

       -T     Write TIFF output (with metadata) instead of PGM/PPM/PAM.

       -k black
              Set the black point.  Default depends on the camera.

       -a     Automatic  color  balance.   The default is to use a fixed color
              balance based on a white card photographed in sunlight.

       -w     Use the color balance specified by the camera.  If this can’t be
              found, print a warning and revert to the default.

       -r mul0 mul1 mul2 mul3
              Specify  your  own  raw color balance.  These multipliers can be
              cut and pasted from the output of fldcraw -v.

       -H 0   Clip all highlights to solid white (default).

       -H 1   Leave highlights unclipped in various shades of pink.

       -H 2-9 Reconstruct highlights.  Low numbers favor whites; high  numbers
              favor  colors.   Try  -H  5 as a compromise.  If that’s not good
              enough, do -H 9, cut out the  non-white  highlights,  and  paste
              them into an image generated with -H 3.

       -m     Same as -o 0.

       -o [0-5]
              Select the output colorspace when the -p option is not used:

                   0   Raw color (unique to each camera)
                   1   sRGB D65 (default)
                   2   Adobe RGB (1998) D65
                   3   Wide Gamut RGB D65
                   4   Kodak ProPhoto RGB D65
                   5   XYZ

       -p camera.icm [ -o output.icm ]
              Use  ICC  profiles to define the camera’s raw colorspace and the
              desired output colorspace (sRGB by default).

       -p embed
              Use the ICC profile embedded in the raw photo.

       -t [0-7,90,180,270]
              Flip the output image.  By default,  fldcraw  applies  the  flip
              specified by the camera.  -t 0 disables all flipping.

       -s [0-99]
              Select  which raw image to decode if the file contains more than
              one.  For example, Fuji Super CCD SR cameras generate  a  second
              image  underexposed four stops to show detail in the highlights.

       -j     For Fuji Super CCD cameras, show the image tilted 45 degrees, so
              that each output pixel corresponds to one raw pixel.

              For most cameras, -s and -j are silently ignored.


       pgm(5),   ppm(5),   pam(5),   pnmgamma(1),  pnmtotiff(1),  pnmtopng(1),
       gphoto2(1), cjpeg(1), djpeg(1)


       Written by David Coffin, dcoffin a cybercom o net

                               November 4, 2006                     fldcraw(1)