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1994-04-01
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67 lines
APPLYMAP(1) APPLYMAP(1)
NNAAMMEE
applymap - Apply the color map in an RLE file to the pixel
data
SSYYNNOOPPSSIISS
aappppllyymmaapp [ --ll ] [ --oo _o_u_t_f_i_l_e ] [ _i_n_f_i_l_e ]
DDEESSCCRRIIPPTTIIOONN
This program takes the color map in an _R_L_E(5) file and
modifies the pixel values by applying the color map to
them. If there is more than one color channel in the
input file, the color map in the input file should have
the same number of channels. If the input file has a sin
gle color channel, the output file will have the same num
ber of color channels as the color map.
Each pixel in the input file is mapped as follows: For a
multi-channel input file, a pixel in channel _i is mapped
as _m_a_p_[_i_]_[_p_i_x_e_l_] _>_> _8, producing a pixel in output channel
_i. The right shift takes the 16 bit color map value to an
8 bit pixel value. For a single channel input file, to
produce a pixel in output channel _i is produced from the
corresponding input pixel value as _m_a_p_[_i_]_[_p_i_x_e_l_] _>_> _8.
OOPPTTIIOONNSS
--ll This option will cause a linear (identity) color
map to be loaded into the output file. Otherwise,
the output file will have no color map.
_i_n_f_i_l_e The input will be read from this file, otherwise,
input will be taken from stdin.
--oo _o_u_t_f_i_l_e
If specified, output will be written to this file,
otherwise it will go to stdout.
SSEEEE AALLSSOO
_r_l_e_l_d_m_a_p(1), _u_r_t(1), _R_L_E(5).
AAUUTTHHOORR
Spencer W. Thomas, University of Utah
BBUUGGSS
If the image data and color map channels in the input file
do not conform to the restriction stated above (N->N or
1->N) the program will most likely core dump.
1 Nov 12, 1986 1