static void
remap(xel ** const xels,
unsigned int const cols,
unsigned int const rows,
xelval const maxval,
int const format,
bool const monoOnly,
const gray * const lumamap) {
/*----------------------------------------------------------------------------
Update the array 'xels' to have the new intensities.
-----------------------------------------------------------------------------*/
switch (PNM_FORMAT_TYPE(format)) {
case PPM_TYPE: {
unsigned int row;
for (row = 0; row < rows; ++row) {
unsigned int col;
for (col = 0; col < cols; ++col) {
xel const thisXel = xels[row][col];
if (monoOnly && PPM_ISGRAY(thisXel)) {
/* Leave this pixel alone */
} else {
struct hsv hsv;
xelval iv;
hsv = ppm_hsv_from_color(thisXel, maxval);
iv = MIN(maxval, ROUNDU(hsv.v * maxval));
hsv.v = MIN(1.0,
((double) lumamap[iv]) / ((double) maxval));
xels[row][col] = ppm_color_from_hsv(hsv, maxval);
}
}
}
}
break;
case PBM_TYPE:
case PGM_TYPE: {
unsigned int row;
for (row = 0; row < rows; ++row) {
unsigned int col;
for (col = 0; col < cols; ++col)
PNM_ASSIGN1(xels[row][col],
lumamap[PNM_GET1(xels[row][col])]);
}
}
break;
}
}
static void
matchBk(pixel const color,
pixval const maxval,
fzLog (* const bkMatchP)[BKCOLOR_COUNT]) {
struct hsv const hsv = ppm_hsv_from_color(color, maxval);
fzLog const satVeryLow = satIsVeryLow(hsv.s);
fzLog const satLow = satIsLow(hsv.s);
fzLog const satMedium = satIsMedium(hsv.s);
fzLog const satHigh = satIsHigh(hsv.s);
fzLog const valVeryLow = valIsVeryLow(hsv.v);
fzLog const valLow = valIsLow(hsv.v);
fzLog const valMedium = valIsMedium(hsv.v);
fzLog const valHigh = valIsHigh(hsv.v);
fzLog const valVeryHigh = valIsVeryHigh(hsv.v);
fzLog const hueAround000 = hueIsAround000(hsv.h);
fzLog const hueAround015 = hueIsAround015(hsv.h);
fzLog const hueAround030 = hueIsAround030(hsv.h);
fzLog const hueAround060 = hueIsAround060(hsv.h);
fzLog const hueAround120 = hueIsAround120(hsv.h);
fzLog const hueAround180 = hueIsAround180(hsv.h);
fzLog const hueAround270 = hueIsAround270(hsv.h);
fzLog const hueAround320 = hueIsAround320(hsv.h);
fzLog const hueAround360 = hueIsAround360(hsv.h);
(*bkMatchP)[BKCOLOR_BLACK] =
fzAnd(fzOr(satVeryLow, satLow), fzOr(valVeryLow, valLow));
(*bkMatchP)[BKCOLOR_GRAY] =
fzAnd(satVeryLow, fzAnd(fzNot(valVeryLow), fzNot(valVeryHigh)));
(*bkMatchP)[BKCOLOR_WHITE] =
fzAnd(satVeryLow, valVeryHigh);
(*bkMatchP)[BKCOLOR_RED] =
fzAnd(fzAnd(fzOr(hueAround000, hueAround360), fzNot(satVeryLow)),
fzOr(valMedium, valHigh)
);
(*bkMatchP)[BKCOLOR_ORANGE] =
fzAnd(fzAnd(hueAround030, fzOr(satMedium, satHigh)),
fzOr(fzOr(valMedium, valHigh), valVeryHigh)
);
(*bkMatchP)[BKCOLOR_YELLOW] =
fzAnd(fzAnd(hueAround060, fzOr(satMedium, satHigh)),
fzOr(valHigh, valVeryHigh)
);
(*bkMatchP)[BKCOLOR_GREEN] =
fzAnd(fzAnd(hueAround120, fzOr(satMedium, satHigh)),
fzAnd(fzNot(valVeryLow), fzNot(valLow))
);
(*bkMatchP)[BKCOLOR_BLUE] =
fzAnd(fzAnd(hueAround180, fzNot(satVeryLow)),
fzNot(valVeryLow)
);
(*bkMatchP)[BKCOLOR_VIOLET] =
fzAnd(fzAnd(hueAround270, fzOr(satMedium, satHigh)),
fzOr(valMedium, valHigh)
);
(*bkMatchP)[BKCOLOR_PURPLE] =
fzAnd(fzAnd(hueAround320, fzOr(satMedium, satHigh)),
fzOr(valMedium, valHigh)
);
(*bkMatchP)[BKCOLOR_BROWN] =
fzOr(
fzAnd(fzOr(hueAround015, hueAround360),
fzAnd(fzNot(satVeryLow), fzOr(valLow, valMedium))),
fzAnd(hueAround015, satLow)
);
}
