| 14 |
|
|
| 15 |
|
#include "color.h" |
| 16 |
|
|
| 17 |
+ |
#include "resolu.h" |
| 18 |
+ |
|
| 19 |
|
extern double atof(); |
| 20 |
|
|
| 21 |
|
extern char *malloc(), *realloc(); |
| 22 |
|
|
| 23 |
|
int lzcomp = 0; /* use Lempel-Ziv compression? */ |
| 24 |
|
|
| 25 |
+ |
int greyscale = 0; /* produce greyscale image? */ |
| 26 |
+ |
|
| 27 |
|
double gamma = 2.2; /* gamma correction */ |
| 28 |
|
|
| 29 |
|
int bradj = 0; /* brightness adjustment */ |
| 49 |
|
case 'z': |
| 50 |
|
lzcomp = !lzcomp; |
| 51 |
|
break; |
| 52 |
+ |
case 'b': |
| 53 |
+ |
greyscale = !greyscale; |
| 54 |
+ |
break; |
| 55 |
|
case 'e': |
| 56 |
|
if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
| 57 |
|
goto userr; |
| 84 |
|
exit(0); |
| 85 |
|
userr: |
| 86 |
|
fprintf(stderr, |
| 87 |
< |
"Usage: %s [-r][-z][-e +/-stops][-g gamma] input output\n", |
| 87 |
> |
"Usage: %s [-r][-b][-z][-e +/-stops][-g gamma] input output\n", |
| 88 |
|
progname); |
| 89 |
|
exit(1); |
| 90 |
|
} |
| 106 |
|
{ |
| 107 |
|
unsigned long xmax, ymax; |
| 108 |
|
TIFF *tif; |
| 109 |
< |
unsigned short pconfig; |
| 109 |
> |
unsigned short pconfig, nsamps; |
| 110 |
|
unsigned short hi; |
| 111 |
|
register BYTE *scanin; |
| 112 |
|
register COLR *scanout; |
| 115 |
|
/* open/check TIFF file */ |
| 116 |
|
if ((tif = TIFFOpen(inpf, "r")) == NULL) |
| 117 |
|
quiterr("cannot open TIFF input"); |
| 118 |
< |
if (!TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &hi) || hi != 3) |
| 118 |
> |
if (!TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &nsamps) || |
| 119 |
> |
(nsamps != 1 && nsamps != 3)) |
| 120 |
|
quiterr("unsupported samples per pixel"); |
| 121 |
|
if (!TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &hi) || hi != 8) |
| 122 |
|
quiterr("unsupported bits per sample"); |
| 123 |
< |
if (TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &hi) && hi != 2) |
| 123 |
> |
if (TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &hi) && |
| 124 |
> |
hi != (nsamps==1 ? 1 : 2)) |
| 125 |
|
quiterr("unsupported photometric interpretation"); |
| 126 |
|
if (!TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &pconfig) || |
| 127 |
|
(pconfig != 1 && pconfig != 2)) |
| 144 |
|
fputs(" -r\n", stdout); |
| 145 |
|
fputformat(COLRFMT, stdout); |
| 146 |
|
putchar('\n'); |
| 147 |
< |
fputresolu(YDECR|YMAJOR, xmax, ymax, stdout); |
| 147 |
> |
fprtresolu(xmax, ymax, stdout); |
| 148 |
|
/* convert image */ |
| 149 |
+ |
if (nsamps == 1) |
| 150 |
+ |
pconfig = 1; |
| 151 |
|
for (y = 0; y < ymax; y++) { |
| 152 |
|
if (pconfig == 1) { |
| 153 |
|
if (TIFFReadScanline(tif, scanin, y, 0) < 0) |
| 154 |
|
goto readerr; |
| 155 |
< |
for (x = 0; x < xmax; x++) { |
| 156 |
< |
scanout[x][RED] = scanin[3*x]; |
| 157 |
< |
scanout[x][GRN] = scanin[3*x+1]; |
| 158 |
< |
scanout[x][BLU] = scanin[3*x+2]; |
| 159 |
< |
} |
| 155 |
> |
if (nsamps == 1) |
| 156 |
> |
for (x = 0; x < xmax; x++) |
| 157 |
> |
scanout[x][RED] = |
| 158 |
> |
scanout[x][GRN] = |
| 159 |
> |
scanout[x][BLU] = scanin[x]; |
| 160 |
> |
else |
| 161 |
> |
for (x = 0; x < xmax; x++) { |
| 162 |
> |
scanout[x][RED] = scanin[3*x]; |
| 163 |
> |
scanout[x][GRN] = scanin[3*x+1]; |
| 164 |
> |
scanout[x][BLU] = scanin[3*x+2]; |
| 165 |
> |
} |
| 166 |
|
} else { |
| 167 |
|
if (TIFFReadScanline(tif, scanin, y, 0) < 0) |
| 168 |
|
goto readerr; |
| 206 |
|
if (strcmp(inpf, "-") && freopen(inpf, "r", stdin) == NULL) |
| 207 |
|
quiterr("cannot open Radiance input file"); |
| 208 |
|
if (checkheader(stdin, COLRFMT, NULL) < 0 || |
| 209 |
< |
fgetresolu(&xmax, &ymax, stdin) != (YDECR|YMAJOR)) |
| 209 |
> |
fgetresolu(&xmax, &ymax, stdin) < 0) |
| 210 |
|
quiterr("bad Radiance picture"); |
| 211 |
|
/* open TIFF file */ |
| 212 |
|
if ((tif = TIFFOpen(outf, "w")) == NULL) |
| 213 |
|
quiterr("cannot open TIFF output"); |
| 214 |
|
TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, (unsigned long)xmax); |
| 215 |
|
TIFFSetField(tif, TIFFTAG_IMAGELENGTH, (unsigned long)ymax); |
| 216 |
< |
TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3); |
| 216 |
> |
TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, greyscale ? 1 : 3); |
| 217 |
|
TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8); |
| 218 |
< |
TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, 2); |
| 218 |
> |
TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, greyscale ? 1 : 2); |
| 219 |
|
TIFFSetField(tif, TIFFTAG_PLANARCONFIG, 1); |
| 220 |
|
if (lzcomp) |
| 221 |
|
TIFFSetField(tif, TIFFTAG_COMPRESSION, (unsigned short)5); |
| 230 |
|
quiterr("error reading Radiance picture"); |
| 231 |
|
if (bradj) |
| 232 |
|
shiftcolrs(scanin, xmax, bradj); |
| 233 |
< |
colrs_gambs(scanin, xmax); |
| 234 |
< |
for (x = 0; x < xmax; x++) { |
| 235 |
< |
scanout[3*x] = scanin[x][RED]; |
| 236 |
< |
scanout[3*x+1] = scanin[x][GRN]; |
| 237 |
< |
scanout[3*x+2] = scanin[x][BLU]; |
| 233 |
> |
if (greyscale) { |
| 234 |
> |
for (x = 0; x < xmax; x++) |
| 235 |
> |
scanin[x][GRN] = normbright(scanin[x]); |
| 236 |
> |
colrs_gambs(scanin, xmax); |
| 237 |
> |
for (x = 0; x < xmax; x++) |
| 238 |
> |
scanout[x] = scanin[x][GRN]; |
| 239 |
> |
} else { |
| 240 |
> |
colrs_gambs(scanin, xmax); |
| 241 |
> |
for (x = 0; x < xmax; x++) { |
| 242 |
> |
scanout[3*x] = scanin[x][RED]; |
| 243 |
> |
scanout[3*x+1] = scanin[x][GRN]; |
| 244 |
> |
scanout[3*x+2] = scanin[x][BLU]; |
| 245 |
> |
} |
| 246 |
|
} |
| 247 |
|
if (TIFFWriteScanline(tif, scanout, y, 0) < 0) |
| 248 |
|
quiterr("error writing TIFF output"); |
