diff -r 000000000000 -r 1918ee327afb src/3rdparty/libtiff/html/man/thumbnail.1.html --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/3rdparty/libtiff/html/man/thumbnail.1.html Mon Jan 11 14:00:40 2010 +0000 @@ -0,0 +1,148 @@ + + + +
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+ thumbnail − create a TIFF file with +thumbnail images + |
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+ thumbnail [ options ] input.tif +output.tif + |
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+ thumbnail 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. + +By default, thumbnail images are 216 pixels wide by 274 +pixels high. Pixels are calculated by sampling and filtering +the input image with each pixel value passed through a +contrast curve. + |
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+ −w + |
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+ Specify the width of thumbnail images in pixels. + |
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+ −h + |
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+ Specify the height of thumbnail images in pixels. + |
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+ −c + |
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+ 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. + |
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+ There are no options to control the format of the saved +thumbnail images. + |
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+ tiffdump(1), tiffgt(1), tiffinfo(1), +libtiff(3) + +Libtiff library home page: +http://www.remotesensing.org/libtiff/ + |
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