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TopWare 18: Liquid
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tifview.doc
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1994-02-07
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July 13, 1993
Pegasus Imaging Corporation
Tampa, FL
(813) 287-7575
(813) 875-7705 FAX
TIFVIEW & IM_EXPG/IM_PACG Software Description
Thank you for taking the time to look at this demonstration release of our TIF
viewing and compression software.
This disk contains:
TIFVIEW.EXE - the VGA TIF file viewer for 1 bit per pixel
TIF images. It will view uncompressed 1 bpp TIFS and G3 & G4 TIFs. To see a
usage message, type TIFVIEW and press<ENTER>. The viewer uses a mouse or keyboard to pan and zoom, or change pages on a multi-page TIF. It will also
perform 3 types of anti-aliasing by pressing 'A' when viewing in half scale.
IM_PACG - This program will compress 1 bpp uncompressed
TIF images to CCITT Group 3 & 4 format.
IM_EXPG - This program decompress CCITT Group 3 & 4 format
TIF files to uncompressed TIF format.
Also included is the TIFFTAGS program which will allow you to determine
what type of TIFF files you have. This utility comes in handy at PIC, and
should serve to remind you to call on us for any of your image file
management needs!
The usage statements for the programs follow but the general concept behind
this software is Black & White (1 bit per pixel) image viewing and
compression programs that work with uncompressed TIFF and CCITT Group 3 & 4
files as input for compression.
When using TIFVIEW You should try pressing the 'a' key for text cleanup, 'n'
for negative view (switches B&W), and '+' and '-' when viewing multi-page
TIFs. On the command line a '/K' will allow you to reverse image movement.
(Try it!)
Please call on us with any question, comments, and of course, suggestions for
improvement.
Thank You
Pegasus Imaging Corporation
(PIC)
TIFVIEW - View a TIFF bi-level file using standard VGA
(c) 1993, Pegasus Imaging Corporation, Tampa, Florida
(Voice) 813-875-7575 (Fax) 813-875-7705
Version 2.10
usage: TIFVIEW tiff_file[.tif] { options }
where options are:
/K Key movement's sense is reversed, i.e., up arrow moves image down.
/N Negate the sense of black and white for the display
/R Reverse the bitorder for the display (used to correct improperly
created TIFF files).
/T Title the display with the file path and name
Scrolling is done by mouse, or by keyboard (cursor left, right, up, down,
Control cursor right, Control cursor left, Pg Up, Pg Dn, Home, End,
Control Pg Up, Control Pg Dn)
Page movement is done using the '+' and '-' keys in order to display the
next page and prior page.
Half-scaling of the image is toggled by pressing 'H' or the left mouse button
Alternate the display of the half-scaled image by toggling 'A'
Foreground and Background colors are rotated by pressing 'F' and 'B'
Negative toggles by pressing 'N'
Initial color setup is restored by pressing 'R'
Quit by right mouse button, or pressing Enter, Escape, 'Q', 'X', or 'E'
If what you see when you press return is garbage, try reading the file again
with the Reverse option set (/R on the command line). Often TIFF files have
this tag incorrectly specified.
IMEXPG source[.tif] destination[.tif] { options }
options are:
/R - Reverse video (reverse black and white colors)
/S - Swap bits (make low-order bit the first bit)
/T - indicate Timing information
IM_PACG source[.tif] destination[.tif] { options }
options are:
/T2 - create modified group 3 (CCITT T.4, 1-Dimension) image
/T3 - create group 3 (CCITT T.4, 1-Dimension) image
/T4 - create group 4 (CCITT T.6) image (default)
TIFFTAGS.EXE tiff_file
This program reads a TIFF file and decodes the header information.
You can optionally pipe the output to a text file ( >info.txt)
or to the screen (|MORE). We hope TIFFTAGS proves as useful
to you as it has been for us!