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#include <stdio.h> |
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#include <math.h> |
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|
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#include "tiffio.h" |
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#include "color.h" |
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| 19 |
< |
extern double atof(); |
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> |
#include "resolu.h" |
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+ |
|
| 22 |
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#define GAMCOR 2.2 /* default gamma */ |
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|
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extern char *malloc(), *realloc(); |
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|
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int lzcomp = 0; /* use Lempel-Ziv compression? */ |
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|
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< |
double gamma = 2.2; /* gamma correction */ |
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> |
int greyscale = 0; /* produce greyscale image? */ |
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+ |
double gamcor = GAMCOR; /* gamma correction */ |
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|
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int bradj = 0; /* brightness adjustment */ |
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char *progname; |
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if (argv[i][0] == '-') |
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switch (argv[i][1]) { |
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case 'g': |
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< |
gamma = atof(argv[++i]); |
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> |
gamcor = atof(argv[++i]); |
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break; |
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case 'z': |
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lzcomp = !lzcomp; |
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break; |
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+ |
case 'b': |
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greyscale = !greyscale; |
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break; |
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case 'e': |
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if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
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goto userr; |
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else |
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break; |
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doneopts: |
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< |
setcolrgam(gamma); |
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> |
setcolrgam(gamcor); |
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|
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if (reverse) |
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if (i != argc-2 && i != argc-1) |
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exit(0); |
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userr: |
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fprintf(stderr, |
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< |
"Usage: %s [-r][-z][-e +/-stops][-g gamma] input output\n", |
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> |
"Usage: %s [-r][-b][-z][-e +/-stops][-g gamma] input output\n", |
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progname); |
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exit(1); |
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} |
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{ |
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unsigned long xmax, ymax; |
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TIFF *tif; |
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< |
unsigned short pconfig; |
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> |
unsigned short pconfig, nsamps; |
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unsigned short hi; |
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register BYTE *scanin; |
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register COLR *scanout; |
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/* open/check TIFF file */ |
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if ((tif = TIFFOpen(inpf, "r")) == NULL) |
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quiterr("cannot open TIFF input"); |
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< |
if (!TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &hi) || hi != 3) |
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> |
if (!TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &nsamps) || |
| 122 |
> |
(nsamps != 1 && nsamps != 3)) |
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quiterr("unsupported samples per pixel"); |
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if (!TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &hi) || hi != 8) |
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quiterr("unsupported bits per sample"); |
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< |
if (TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &hi) && hi != 2) |
| 126 |
> |
if (TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &hi) && |
| 127 |
> |
hi != (nsamps==1 ? PHOTOMETRIC_MINISBLACK : |
| 128 |
> |
PHOTOMETRIC_RGB)) |
| 129 |
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quiterr("unsupported photometric interpretation"); |
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if (!TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &pconfig) || |
| 131 |
< |
(pconfig != 1 && pconfig != 2)) |
| 131 |
> |
(pconfig != PLANARCONFIG_CONTIG && |
| 132 |
> |
pconfig != PLANARCONFIG_SEPARATE)) |
| 133 |
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quiterr("unsupported planar configuration"); |
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if (!TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &xmax) || |
| 135 |
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!TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &ymax)) |
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if (outf != NULL && strcmp(outf, "-") && |
| 144 |
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freopen(outf, "w", stdout) == NULL) |
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quiterr("cannot open Radiance output file"); |
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+ |
newheader("RADIANCE", stdout); |
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fputs(progname, stdout); |
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if (bradj) |
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printf(" -e %+d", bradj); |
| 150 |
+ |
if (gamcor != GAMCOR) |
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+ |
printf(" -g %f", gamcor); |
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fputs(" -r\n", stdout); |
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fputformat(COLRFMT, stdout); |
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putchar('\n'); |
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< |
fputresolu(YDECR|YMAJOR, xmax, ymax, stdout); |
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> |
fprtresolu((int)xmax, (int)ymax, stdout); |
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/* convert image */ |
| 157 |
+ |
if (nsamps == 1) |
| 158 |
+ |
pconfig = 1; |
| 159 |
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for (y = 0; y < ymax; y++) { |
| 160 |
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if (pconfig == 1) { |
| 161 |
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if (TIFFReadScanline(tif, scanin, y, 0) < 0) |
| 162 |
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goto readerr; |
| 163 |
< |
for (x = 0; x < xmax; x++) { |
| 164 |
< |
scanout[x][RED] = scanin[3*x]; |
| 165 |
< |
scanout[x][GRN] = scanin[3*x+1]; |
| 166 |
< |
scanout[x][BLU] = scanin[3*x+2]; |
| 167 |
< |
} |
| 163 |
> |
if (nsamps == 1) |
| 164 |
> |
for (x = 0; x < xmax; x++) |
| 165 |
> |
scanout[x][RED] = |
| 166 |
> |
scanout[x][GRN] = |
| 167 |
> |
scanout[x][BLU] = scanin[x]; |
| 168 |
> |
else |
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> |
for (x = 0; x < xmax; x++) { |
| 170 |
> |
scanout[x][RED] = scanin[3*x]; |
| 171 |
> |
scanout[x][GRN] = scanin[3*x+1]; |
| 172 |
> |
scanout[x][BLU] = scanin[3*x+2]; |
| 173 |
> |
} |
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} else { |
| 175 |
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if (TIFFReadScanline(tif, scanin, y, 0) < 0) |
| 176 |
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goto readerr; |
| 214 |
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if (strcmp(inpf, "-") && freopen(inpf, "r", stdin) == NULL) |
| 215 |
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quiterr("cannot open Radiance input file"); |
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if (checkheader(stdin, COLRFMT, NULL) < 0 || |
| 217 |
< |
fgetresolu(&xmax, &ymax, stdin) != (YDECR|YMAJOR)) |
| 217 |
> |
fgetresolu(&xmax, &ymax, stdin) < 0) |
| 218 |
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quiterr("bad Radiance picture"); |
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/* open TIFF file */ |
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if ((tif = TIFFOpen(outf, "w")) == NULL) |
| 221 |
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quiterr("cannot open TIFF output"); |
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TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, (unsigned long)xmax); |
| 223 |
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TIFFSetField(tif, TIFFTAG_IMAGELENGTH, (unsigned long)ymax); |
| 224 |
< |
TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3); |
| 224 |
> |
TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, greyscale ? 1 : 3); |
| 225 |
|
TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8); |
| 226 |
< |
TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, 2); |
| 227 |
< |
TIFFSetField(tif, TIFFTAG_PLANARCONFIG, 1); |
| 226 |
> |
TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, |
| 227 |
> |
greyscale ? PHOTOMETRIC_MINISBLACK : |
| 228 |
> |
PHOTOMETRIC_RGB); |
| 229 |
> |
TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); |
| 230 |
|
if (lzcomp) |
| 231 |
< |
TIFFSetField(tif, TIFFTAG_COMPRESSION, (unsigned short)5); |
| 231 |
> |
TIFFSetField(tif, TIFFTAG_COMPRESSION, |
| 232 |
> |
(unsigned short)COMPRESSION_LZW); |
| 233 |
|
/* allocate scanlines */ |
| 234 |
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scanin = (COLR *)malloc(xmax*sizeof(COLR)); |
| 235 |
|
scanout = (BYTE *)malloc(TIFFScanlineSize(tif)); |
| 241 |
|
quiterr("error reading Radiance picture"); |
| 242 |
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if (bradj) |
| 243 |
|
shiftcolrs(scanin, xmax, bradj); |
| 244 |
< |
colrs_gambs(scanin, xmax); |
| 245 |
< |
for (x = 0; x < xmax; x++) { |
| 246 |
< |
scanout[3*x] = scanin[x][RED]; |
| 247 |
< |
scanout[3*x+1] = scanin[x][GRN]; |
| 248 |
< |
scanout[3*x+2] = scanin[x][BLU]; |
| 244 |
> |
if (greyscale) { |
| 245 |
> |
for (x = 0; x < xmax; x++) |
| 246 |
> |
scanin[x][GRN] = normbright(scanin[x]); |
| 247 |
> |
colrs_gambs(scanin, xmax); |
| 248 |
> |
for (x = 0; x < xmax; x++) |
| 249 |
> |
scanout[x] = scanin[x][GRN]; |
| 250 |
> |
} else { |
| 251 |
> |
colrs_gambs(scanin, xmax); |
| 252 |
> |
for (x = 0; x < xmax; x++) { |
| 253 |
> |
scanout[3*x] = scanin[x][RED]; |
| 254 |
> |
scanout[3*x+1] = scanin[x][GRN]; |
| 255 |
> |
scanout[3*x+2] = scanin[x][BLU]; |
| 256 |
> |
} |
| 257 |
|
} |
| 258 |
|
if (TIFFWriteScanline(tif, scanout, y, 0) < 0) |
| 259 |
|
quiterr("error writing TIFF output"); |
