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TIFFCMP

NAME

SYNOPSIS

DESCRIPTION

OPTIONS

BUGS

SEE ALSO

NAME

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tiffcmp − compare two <small>TIFF</small> files

SYNOPSIS

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tiffcmp [ options ] file1.tif

file2.tif

DESCRIPTION

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Tiffcmp compares the tags and data in two files

created according to the Tagged Image File Format, Revision

6.0. The schemes used for compressing data in each file are

immaterial when data are compared−data are compared on

a scanline-by-scanline basis after decompression. Most

directory tags are checked; notable exceptions are:

GrayResponseCurve, ColorResponseCurve, and

ColorMap tags. Data will not be compared if any of

the BitsPerSample, SamplesPerPixel, or

ImageWidth values are not equal. By default,

tiffcmp will terminate if it encounters any

difference.

OPTIONS

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−l

List each byte of image data that differs between the

files.

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−z number

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List specified number of image data bytes that differs

between the files.

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−t

Ignore any differences in directory tags.

BUGS

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Tags that are not recognized by the library are not

compared; they may also generate spurious diagnostics.

The image data of tiled files is not compared, since the

TIFFReadScanline() function is used. An error will be

reported for tiled files.

The pixel and/or sample number reported in differences

may be off in some exotic cases.

SEE ALSO

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pal2rgb(1), tiffcp(1),

tiffmedian(1), libtiff(3TIFF)

Libtiff library home page:

http://www.remotesensing.org/libtiff/