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dcraw (1)
  • dcraw (1) ( Русские man: Команды и прикладные программы пользовательского уровня )
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    NAME

    dcraw - command-line decoder for raw digital photos
     
    

    SYNOPSIS

    dcraw [OPTION]... [FILE]...  

    DESCRIPTION

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

    OPTIONS

    -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 dcraw can decode the last file, 1 if it can't. -i -v shows metadata.
    dcraw 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, dcraw 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 dcraw -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, dcraw applies the flip specified by the camera. -t 0 disables all flipping.
    -j
    For Fuji Super CCD cameras, show the image tilted 45 degrees, so that each output pixel corresponds to one raw pixel.
    -s
    For Fuji Super CCD SR cameras, use the secondary sensors, in effect underexposing the image by four stops to reveal detail in the highlights.
    For all other cameras, -j and -s are silently ignored.
     

    SEE ALSO

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

    AUTHOR

    Written by David Coffin, dcoffin a cybercom o net


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    OPTIONS
    SEE ALSO
    AUTHOR


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