MAN Solaris - thumbnail (1)

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NAME

thumbnail - create a TIFF file with thumbnail images

CONTENTS

SYNOPSIS

thumbnail [options] input.tif output.tif

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DESCRIPTION

The thumbnail command shows how to 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 grayscale 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.

OPTIONS

The following options are supported:

-c Specify a contrast curve to apply when generating the thumbnail images. By default, pixel values are passed through a linear contrast curve that simply maps the pixel value ranges. Alternative curves are as follows:

exp50 50% exponential curve

exp60 60% exponential curve

exp70 70% exponential curve

exp80 80% exponential curve

exp90 90% exponential curve

exp pure exponential curve

linear linear curve

-h Specify the height of thumbnail images in pixels.

-w Specify the width of thumbnail images in pixels.

OPERANDS

The following operands are supported:

input.tif The name of the input TIFF file.

output.tif The name of the output file.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
AvailabilitySUNWTiff
Interface stabilityEvolving

SEE ALSO

tiffdump(1), tiffgt(1), tiffinfo(1), libtiff(3)

NOTES

There are no options to control the format of the saved thumbnail images.

Updated by Breda McColgan, Sun Microsystems Inc., 2004.

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SunOS 5.11 thumbnail (1) 26 Mar 2004
Generated by Open Solaris Forum from /usr/share/man/man1/thumbnail.1 using man macros with tbl support.