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TIFFSV

NAME

SYNOPSIS

DESCRIPTION

OPTIONS

NOTE

BUGS

SEE ALSO

NAME

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tiffsv − save an image from the framebuffer in a

<small>TIFF</small> file (Silicon Graphics version)

SYNOPSIS

       cols="2" cellspacing="0" cellpadding="0">

tiffsv [ options ] output.tif [

x1 x2 y1 y2 ]

DESCRIPTION

       cols="2" cellspacing="0" cellpadding="0">

tiffsv saves all or part of the framebuffer in a

file using the Tag Image File Format, Revision 6.0. By

default, the image is saved with data samples packed

(PlanarConfiguration=1), compressed with the

Lempel-Ziv & Welch algorithm (Compression=5), and

with each strip no more than 8 kilobytes. These

characteristics can be overridden, or explicitly specified

with the options described below.

OPTIONS

       cols="5" cellspacing="0" cellpadding="0">

−b

Save the image as a greyscale image as if it were

processed by tiff2bw(1). This option is included for

compatibility with the standard scrsave(6D)

program.

−c

Specify the compression to use for data written to the

output file: none for no compression, packbits

for PackBits compression, jpeg for baseline JPEG

compression, zip for Deflate compression, and

lzw for Lempel-Ziv & Welch compression

(default).

       cols="2" cellspacing="0" cellpadding="0">

<small>LZW</small> compression can be specified together

with a predictor value. A predictor value of 2 causes

each scanline of the output image to undergo horizontal

differencing before it is encoded; a value of 1 forces each

scanline to be encoded without differencing. LZW-specific

options are specified by appending a

‘‘:’’-separated list to the

‘‘lzw’’ option; e.g. −c

lzw:2 for <small>LZW</small> compression with horizontal

differencing.

       cols="5" cellspacing="0" cellpadding="0">

−p

Specify the planar configuration to use in writing image

data. By default, tiffsv will create a new file with

the data samples packed contiguously. Specifying −p

contig will force data to be written with multi-sample

data packed together, while −p separate will

force samples to be written in separate planes.

−r

Specify the number of rows (scanlines) in each strip of

data written to the output file. By default, tiffsv

attempts to set the rows/strip that no more than 8 kilobytes

of data appear in a strip.

NOTE

       cols="2" cellspacing="0" cellpadding="0">

Except for the use of <small>TIFF,</small> this program

is equivalent to the standard scrsave program. This

means, for example, that you can use it in conjunction with

the standard icut program simply by creating a link

called scrsave, or by creating a shell script called

scrsave that invokes tiffgt with the

appropriate options.

BUGS

       cols="2" cellspacing="0" cellpadding="0">

If data are saved compressed and in separate planes, then

the rows in each strip is silently set to one to avoid

limitations in the libtiff(3TIFF) library.

SEE ALSO

       cols="2" cellspacing="0" cellpadding="0">

scrsave(6D) pal2rgb(1), tiffdump(1),

tiffgt(1), tiffinfo(1), tiffcp(1),

tiffmedian(1), libtiff(3TIFF)

Libtiff library home page:

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