thumbnail (1) - Linux Man Pages
thumbnail: create a
NAMEthumbnail - create a TIFF file with thumbnail images
SYNOPSISthumbnail [ options ] input.tif output.tif
DESCRIPTIONthumbnail is a program written to show how one might use the SubIFD tag (#330) to store thumbnail images. thumbnail copies a TIFF Class F facsimile file to the output file and for each image an 8-bit greyscale thumbnail sketch. The output file contains the thumbnail image with the associated full-resolution page linked below with the SubIFD tag.
- Specify the width of thumbnail images in pixels.
- Specify the height of thumbnail images in pixels.
- Specify a contrast curve to apply in generating the thumbnail images. By default pixels values are passed through a linear contrast curve that simply maps the pixel value ranges. Alternative curves are: exp50 for a 50% exponential curve, exp60 for a 60% exponential curve, exp70 for a 70% exponential curve, exp80 for a 80% exponential curve, exp90 for a 90% exponential curve, exp for a pure exponential curve, linear for a linear curve.
BUGSThere are no options to control the format of the saved thumbnail images.
SEE ALSOtiffdump(1), tiffgt(1), tiffinfo(1), libtiff(3)
Libtiff library home page: http://www.remotesensing.org/libtiff/
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