Provided by: libtiff-opengl_4.5.1+git230720-4ubuntu2.2_amd64 
NAME
tiffgt - display an image stored in a TIFF file (Silicon Graphics version)
SYNOPSIS
tiffgt [ options ] input.tif …
DESCRIPTION
tiffgt displays one or more images stored using the Tag Image File Format, Revision 6.0.
tiffgt correctly handles files with any of the following characteristics:
SUPPORTED TAG VALUES
┌───────────────────────────┬───────────────────────────────────────┐
│ Tag │ Value │
├───────────────────────────┼───────────────────────────────────────┤
│ BitsPerSample │ 1, 2, 4, 8, 16 │
├───────────────────────────┼───────────────────────────────────────┤
│ SamplesPerPixel │ 1, 3, 4 (the 4th sample is ignored) │
├───────────────────────────┼───────────────────────────────────────┤
│ PhotometricInterpretation │ 0 (min-is-white), 1 (min-is-black), 2 │
│ │ (RGB), 3 (palette), 6 (YCbCr) │
├───────────────────────────┼───────────────────────────────────────┤
│ PlanarConfiguration │ 1 (contiguous), 2 (separate) │
├───────────────────────────┼───────────────────────────────────────┤
│ Orientation │ 1 (top-left), 4 (bottom-left) │
└───────────────────────────┴───────────────────────────────────────┘
Data may be organized as strips or tiles and may be compressed with any of the compression algorithms
supported by the libtiff library.
For palette images (PhotometricInterpretation=3), tiffgt inspects the colormap values and assumes either
16-bit or 8-bit values according to the maximum value. That is, if no colormap entry greater than 255 is
found, tiffgt assumes the colormap has only 8-bit values; otherwise it assumes 16-bit values. This
inspection is done to handle old images written by previous (incorrect) versions of libtiff.
tiffgt can be used to display multiple images one-at-a-time. The left mouse button switches the display
to the first image in the next file in the list of files specified on the command line. The right mouse
button switches to the first image in the previous file in the list. The middle mouse button causes the
first image in the first file specified on the command line to be displayed. In addition the following
keyboard commands are recognized:
ACTION KEYS
────────────────────────────────────────────────────
Key Description
────────────────────────────────────────────────────
b Use a PhotometricInterpretation of
MinIsBlack in displaying the current
image
────────────────────────────────────────────────────
l Use a FillOrder of lsb-to-msb in
decoding the current image
────────────────────────────────────────────────────
m Use a FillOrder of msb-to-lsb in
decoding the current image
────────────────────────────────────────────────────
c Use a colormap visual to display the
current image
────────────────────────────────────────────────────
r Use a true color (24-bit RGB) visual
to display the current image
────────────────────────────────────────────────────
w Use a PhotometricInterpretation of
MinIsWhite in displaying the current
image
────────────────────────────────────────────────────
W Toggle (enable/disable) display of
warning messages from the TIFF
library when decoding images
────────────────────────────────────────────────────
E Toggle (enable/disable) display of
error messages from the TIFF library
when decoding images.
────────────────────────────────────────────────────
z Reset all parameters to their default
settings (FillOrder,
PhotometricInterpretation, handling
of warnings and errors)
────────────────────────────────────────────────────
PageUp Display the previous image in the
current file or the last image in the
previous file
────────────────────────────────────────────────────
PageDown Display the next image in the current
file or the first image in the next
file
────────────────────────────────────────────────────
Home Display the first image in the
current file
────────────────────────────────────────────────────
End Display the last image in the current
file (unimplemented)
┌──────────┬───────────────────────────────────────┐
│ │ │
OPTIONS │ │ │
--
BUGS
Images wider and taller than the display are silently truncated to avoid crashing old versions of the
window manager.
SEE ALSO
tiffdump (1), tiffinfo (1), tiffcp (1), libtiff (3tiff)
AUTHOR
LibTIFF contributors
COPYRIGHT
1988-2024, LibTIFF contributors
4.5 Sep 05, 2024 TIFFGT(1)