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IRIX Base Documentation 1998 November
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IRIX 6.5.2 Base Documentation November 1998.img
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catman
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cat1
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ditherstiff.z
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ditherstiff
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1998-10-30
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4KB
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133 lines
DDDDIIIITTTTHHHHEEEERRRRSSSSTTTTIIIIFFFFFFFF((((1111)))) IIIImmmmpppprrrreeeessssssssaaaarrrriiiioooo DDDDIIIITTTTHHHHEEEERRRRSSSSTTTTIIIIFFFFFFFF((((1111))))
NNNNAAAAMMMMEEEE
ditherstiff - dither (halftone) an 8 bit stream TIFF file using error
diffusion dither
SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
ddddiiiitttthhhheeeerrrrssssttttiiiiffffffff [----IIII filename] [----OOOO filename] [----LLLL filename]
[----eeee] [----ssss] [----hhhh] [----DDDD]
DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
_d_i_t_h_e_r_s_t_i_f_f dithers the images contained in a stream TIFF (STIFF) file
using a modified Floyd and Steinberg error diffusion dithering algorithm.
The input images should have 8 bits per color component. The output
images will be dithered to 1 bit per color component.
_d_i_t_h_e_r_s_t_i_f_f supports the following colorspace models: kkkk, wwww, ccccmmmmyyyy, ccccmmmmyyyykkkk,
yyyymmmmcccc, yyyymmmmcccckkkk, kkkkccccmmmmyyyy and rrrrggggbbbb. PPPPllllaaaannnnaaaarrrr and cccchhhhuuuunnnnkkkkyyyy raster formats are supported.
The colorspace and raster format remained unchanged in the output stream.
CCCCoooommmmmmmmaaaannnndddd LLLLiiiinnnneeee OOOOppppttttiiiioooonnnnssss
_d_i_t_h_e_r_s_t_i_f_f supports the following command line options:
----IIII _f_i_l_e_n_a_m_e
Specifies the name of the file from which the STIFF input will
be read. If the ----IIII option is not specified, input will be read
from the standard input.
----OOOO _f_i_l_e_n_a_m_e
Specifies the name of the file to which the STIFF output will
be sent. If the ----OOOO option is not specified, output will be
sent to the standard output.
----LLLL _f_i_l_e_n_a_m_e
Specifies the name of the file to which error, warning and
informational messages are to be written. If the file specified
already exists, any messages generated by _d_i_t_h_e_r_s_t_i_f_f will be
appended to the end of the file. If the ----LLLL option is not
specified, message output will be sent to standard error.
----eeee Use a classic Floyd and Steinberg dither (error diffusion).
----ssss Use a modified Floyd and Steinberg error diffusion dither (a
two weight error filter with random perturbations is used to
reduce visual artifacts). This is the default.
----hhhh Prints a program usage message to the standard error.
----DDDD Specifies verbose output for debugging purposes.
NNNNOOOOTTTTEEEESSSS
_d_i_t_h_e_r_s_t_i_f_f is typically used as a filter between _p_s_r_i_p and a printer
driver to provide error diffusion dithered images for the printer.
PPPPaaaaggggeeee 1111
DDDDIIIITTTTHHHHEEEERRRRSSSSTTTTIIIIFFFFFFFF((((1111)))) IIIImmmmpppprrrreeeessssssssaaaarrrriiiioooo DDDDIIIITTTTHHHHEEEERRRRSSSSTTTTIIIIFFFFFFFF((((1111))))
_d_i_t_h_e_r_s_t_i_f_f output can be viewed using _v_s_t_i_f_f.
SSSSEEEEEEEE AAAALLLLSSSSOOOO
_v_s_t_i_f_f(1), _l_i_b_s_t_i_f_f(3), _p_s_r_i_p(1).
PPPPaaaaggggeeee 2222