void save_files()
{
char fn1[255], fn2[255];
FILE *f1, *f2;
gray **image1, **image2;
image1 = pgm_allocarray(wid, hgt);
image2 = pgm_allocarray(wid, hgt);
for (int i=0; i<wid*hgt; i++)
{
image1[i/wid][i%wid] = (gray) data1[i];
image2[i/wid][i%wid] = (gray) data2[i];
}
snprintf(fn1, 256, "%s_%+.1f_.pgm", fname1, angle_value->value());
snprintf(fn2, 256, "%s_%+.1f_.pgm", fname2, angle_value->value());
f1 = fopen(fn1, "w");
f2 = fopen(fn2, "w");
pgm_writepgm(f1, image1, wid, hgt, 65535, false);
pgm_writepgm(f2, image2, wid, hgt, 65535, false);
fclose(f1);
fclose(f2);
pgm_freearray(image1, hgt);
pgm_freearray(image2, hgt);
fl_beep(FL_BEEP_MESSAGE);
}
pgm_t *pnm_pgm_alloc(pgm_t *pgm, int cols, int rows)
{
if (!pgm)
pgm = pnm_pgm_create();
pgm->rows = rows;
pgm->cols = cols;
pgm->pixels = pgm_allocarray(cols, rows);
return (pgm);
}
void pgm_erode(
gray **pgm,
int cols,
int rows,
int num
)
{
int n, i, j;
gray **tmp_pgm;
/* allocate space */
tmp_pgm = pgm_allocarray(cols, rows);
if (tmp_pgm == NULL)
pm_error("no more memory.");
for (n=0; n < num; n++) {
/* copy pgm -> tmp_pgm */
for (i=0; i < rows; i++)
for (j=0; j < cols; j++)
tmp_pgm[i][j] = pgm[i][j];
/* dilate 1 pixel */
for (i=1; i < rows-1; i++)
for (j=1; j < cols-1; j++)
if (tmp_pgm[i][j] == OBJECT &&
(tmp_pgm[i-1][j-1] == BACKGROUND ||
tmp_pgm[i-1][j ] == BACKGROUND ||
tmp_pgm[i-1][j+1] == BACKGROUND ||
tmp_pgm[i ][j-1] == BACKGROUND ||
tmp_pgm[i ][j+1] == BACKGROUND ||
tmp_pgm[i+1][j-1] == BACKGROUND ||
tmp_pgm[i+1][j ] == BACKGROUND ||
tmp_pgm[i+1][j+1] == BACKGROUND))
pgm[i][j] = BACKGROUND;
} /* end for */
pgm_freearray(tmp_pgm, rows);
} /* end pgm_erode() */
int main(int argc, char *argv[]) {
FILE *in = stdin;
FILE *out = stdout;
FILE *sig = NULL;
char output_name[MAXPATHLEN] = "(stdout)";
char input_name[MAXPATHLEN] = "(stdin)";
char signature_name[MAXPATHLEN];
int i, c, w;
int row;
int n;
double alpha = 0.0;
double beta = 0.0;
int filter = 0;
int method = -1;
int level = 0;
char filter_name[MAXPATHLEN] = "";
int verbose = 0;
gray **image;
Image_tree dwts;
gray maxval;
int rows, cols, format;
double *watermark;
progname = argv[0];
pgm_init(&argc, argv); wm_init();
while ((c = getopt(argc, argv, "a:b:e:f:F:h?o:s:v:")) != EOF) {
switch (c) {
case 'a':
alpha = atof(optarg);
if (alpha <= 0.0) {
fprintf(stderr, "%s: alpha factor %f out of range\n", progname, alpha);
exit(1);
}
break;
case 'b':
beta = atof(optarg);
if (beta <= 0.0) {
fprintf(stderr, "%s: beta factor %f out of range\n", progname, beta);
exit(1);
}
break;
case 'e':
method = atoi(optarg);
if (method < 0) {
fprintf(stderr, "%s: wavelet filtering method %d out of range\n", progname, method);
exit(1);
}
break;
case 'f':
filter = atoi(optarg);
if (filter <= 0) {
fprintf(stderr, "%s: filter number %d out of range\n", progname, filter);
exit(1);
}
break;
case 'F':
strcpy(filter_name, optarg);
break;
case 'h':
case '?':
usage();
break;
case 'o':
if ((out = fopen(optarg, "wb")) == NULL) {
fprintf(stderr, "%s: unable to open output file %s\n", progname, optarg);
exit(1);
}
strcpy(output_name, optarg);
break;
case 's':
if ((sig = fopen(optarg, "r")) == NULL) {
fprintf(stderr, "%s: unable to open signature file %s\n", progname, optarg);
exit(1);
}
strcpy(signature_name, optarg);
break;
case 'v':
verbose = atoi(optarg);
if (verbose < 0) {
fprintf(stderr, "%s: verbosity level %d out of range\n", progname, verbose);
exit(1);
}
break;
}
}
argc -= optind;
argv += optind;
if (argc > 1) {
usage();
exit(1);
}
if (argc == 1 && *argv[0] != '-') {
if ((in = fopen(argv[0], "rb")) == NULL) {
fprintf(stderr, "%s: unable to open input file %s\n", progname, argv[0]);
exit(1);
}
else
strcpy(input_name, argv[0]);
}
if (sig) {
char line[32];
fgets(line, sizeof(line), sig);
if (strspn(line, "WGSG") >= 4) {
fscanf(sig, "%d\n", &n);
if (alpha == 0.0)
fscanf(sig, "%lf\n", &alpha);
else
fscanf(sig, "%*f\n");
if (beta == 0.0)
fscanf(sig, "%lf\n", &beta);
else
fscanf(sig, "%*f\n");
if (method < 0)
fscanf(sig, "%d\n", &method);
else
fscanf(sig, "%*d\n");
if (filter == 0)
fscanf(sig, "%d\n", &filter);
else
fscanf(sig, "%*d\n");
if (!strcmp(filter_name, ""))
fscanf(sig, "%[^\n\r]\n", filter_name);
else
fscanf(sig, "%*[^\n\r]\n");
}
else {
fprintf(stderr, "%s: invalid signature file %s\n", progname, signature_name);
exit(1);
}
}
else {
fprintf(stderr, "%s: signature file not specified, use -s file option\n", progname);
exit(1);
}
watermark = malloc(n * sizeof(double));
for (i = 0; i < n; i++)
fscanf(sig, "%lf\n", &watermark[i]);
fclose(sig);
pgm_readpgminit(in, &cols, &rows, &maxval, &format);
image = pgm_allocarray(cols, rows);
for (row = 0; row < rows; row++)
pgm_readpgmrow(in, image[row], cols, maxval, format);
fclose(in);
// complete decomposition
level = find_deepest_level(cols, rows) - 1;
// wavelet transform
init_dwt(cols, rows, filter_name, filter, level, method);
#ifdef POLLEN_STUFF
#include "pollen_stuff.c"
#endif
#ifdef PARAM_STUFF
#include "param_stuff.c"
#endif
dwts = fdwt(image);
// build tree for subband selection, calculate subband thresholds
init_subbands(dwts);
set_subbands_type_beta(HORIZONTAL, beta);
set_subbands_type_beta(VERTICAL, beta);
calc_subbands_threshold();
w = 0;
while (w < n) {
Subband_data s;
// select subband with max. threshold
s = select_subband();
if (verbose > 1)
fprintf(stderr, "%s: selected subband %s%d, T=%lf, beta=%lf\n", progname, subband_name(s->type), s->level, s->T, s->beta);
// watermark significant coefficients and set them selected
// check is entire signature has been embedded
c = select_subband_coeff(s);
do {
double p;
if (c < 0)
// no more significant coefficients in subband
break;
p = get_subband_coeff(s, c);
if (p < s->Cmax) {
if (verbose > 2)
fprintf(stderr, "%s: embedding sig. coeff. #%d (= %lf)\n into %s%d coeff. #%d\n",
progname, w, watermark[w], subband_name(s->type), s->level, c);
p = p + alpha * s->beta * s->T * watermark[w];
set_subband_coeff(s, c, p);
w++;
}
mark_subband_coeff(s, c);
// select next significant coefficient
c = select_subband_coeff_from(s, c);
} while (w < n);
// update subband threshold
s->T /= 2.0;
}
free_subbands();
free(watermark);
idwt(dwts, image);
pgm_writepgminit(out, cols, rows, maxval, 0);
for (row = 0; row < rows; row++)
pgm_writepgmrow(out, image[row], cols, maxval, 0);
fclose(out);
pgm_freearray(image, rows);
exit(0);
}
int main(int argc, char *argv[]) {
FILE *in = stdin;
FILE *out = stdout;
FILE *sig = NULL;
char output_name[MAXPATHLEN] = "(stdout)";
char input_name[MAXPATHLEN] = "(stdin)";
char signature_name[MAXPATHLEN];
int c;
int row, col;
int n;
double quality = 0.0;
int filter = 0;
int method = -1;
int level = 0;
char filter_name[MAXPATHLEN] = "";
int seed;
int verbose = 0;
gray **image;
Image_tree dwts;
gray maxval;
int rows, cols, colors, format;
progname = argv[0];
pgm_init(&argc, argv);
#ifdef __EMX__
_fsetmode(in, "b");
_fsetmode(out, "b");
#endif
while ((c = getopt(argc, argv, "e:f:F:h?l:o:q:s:v:")) != EOF) {
switch (c) {
case 'e':
method = atoi(optarg);
if (method < 0) {
fprintf(stderr, "%s: wavelet filtering method %d out of range\n", progname, method);
exit(1);
}
break;
case 'f':
filter = atoi(optarg);
if (filter <= 0) {
fprintf(stderr, "%s: filter number %d out of range\n", progname, filter);
exit(1);
}
break;
case 'F':
strcpy(filter_name, optarg);
break;
case 'h':
case '?':
usage();
break;
case 'l':
level = atoi(optarg);
if (level < 1) {
fprintf(stderr, "%s: embedding level out of range\n", progname);
exit(1);
}
break;
case 'o':
if ((out = fopen(optarg, "wb")) == NULL) {
fprintf(stderr, "%s: unable to open output file %s\n", progname, optarg);
exit(1);
}
strcpy(output_name, optarg);
break;
case 'q':
quality = atoi(optarg);
if (quality <= 0) {
fprintf(stderr, "%s: quality factor %d out of range\n", progname, quality);
exit(1);
}
break;
case 's':
if ((sig = fopen(optarg, "r")) == NULL) {
fprintf(stderr, "%s: unable to open signature file %s\n", progname, optarg);
exit(1);
}
strcpy(signature_name, optarg);
break;
case 'v':
verbose = atoi(optarg);
if (verbose < 0) {
fprintf(stderr, "%s: verbosity level %d out of range\n", progname, verbose);
exit(1);
}
break;
}
}
argc -= optind;
argv += optind;
if (argc > 1) {
usage();
exit(1);
}
if (argc == 1 && *argv[0] != '-')
if ((in = fopen(argv[0], "rb")) == NULL) {
fprintf(stderr, "%s: unable to open input file %s\n", progname, argv[0]);
exit(1);
}
else
strcpy(input_name, argv[0]);
if (sig) {
char line[32];
fgets(line, sizeof(line), sig);
if (strspn(line, "KDSG") >= 4) {
fscanf(sig, "%d\n", &n);
if (quality == 0.0)
fscanf(sig, "%lf\n", &quality);
else
fscanf(sig, "%*f\n");
if (method < 0)
fscanf(sig, "%d\n", &method);
else
fscanf(sig, "%*d\n");
if (filter == 0)
fscanf(sig, "%d\n", &filter);
else
fscanf(sig, "%*d\n");
if (!strcmp(filter_name, ""))
fscanf(sig, "%[^\n\r]\n", filter_name);
else
fscanf(sig, "%*[^\n\r]\n");
if (level == 0)
fscanf(sig, "%d\n", &level);
else
fscanf(sig, "%*d\n");
fscanf(sig, "%d\n", &seed);
srandom(seed);
n_signature = NBITSTOBYTES(nbit_signature);
fread(signature, sizeof(char), n_signature, sig);
fscanf(sig, "\n");
}
else {
fprintf(stderr, "%s: invalid signature file %s\n", progname, signature_name);
exit(1);
}
fclose(sig);
}
else {
fprintf(stderr, "%s: signature file not specified, use -s file option\n", progname);
exit(1);
}
pgm_readpgminit(in, &cols, &rows, &maxval, &format);
image = pgm_allocarray(cols, rows);
for (row = 0; row < rows; row++)
pgm_readpgmrow(in, image[row], cols, maxval, format);
fclose(in);
// check watermark dimensions and decomposition level
// decomposition of image
init_dwt(cols, rows, filter_name, filter, level, method);
#ifdef POLLEN_STUFF
{
double alpha, beta;
char *alpha_str = getenv("POLLEN_ALPHA"), *beta_str = getenv("POLLEN_BETA");
if (alpha_str && beta_str) {
alpha = atof(alpha_str);
beta = atof(beta_str);
if (alpha < -M_PI || alpha >= M_PI) {
fprintf(stderr, "%s: pollen - alpha %f out of range\n", progname, alpha);
exit(1);
}
if (beta < -M_PI || beta >= M_PI) {
fprintf(stderr, "%s: pollen - beta %f out of range\n", progname, beta);
exit(1);
}
if (verbose > 7)
fprintf(stderr, "%s: pollen - alpha %f, beta %f\n", progname, alpha, beta);
dwt_pollen_filter(alpha, beta);
}
}
#endif
dwts = fdwt(image);
// create 'image' from binary watermark
// decomposition of watermark
init_dwt(cols, rows, filter_name, filter, 1, method);
// dwts = fdwt(watermark);
// calculate mean value of image and set alpha
// setup of contrast sensitivity matrix
// segment detail images at each level
// calculate DFT of each segment
// compute salience for each segment
// calculate gamma or each detail image
// embed watermark
// reconstruction of watermarked image
idwt(dwts, image);
pgm_writepgminit(out, cols, rows, maxval, 0);
for (row = 0; row < rows; row++)
pgm_writepgmrow(out, image[row], cols, maxval, 0);
fclose(out);
pgm_freearray(image, rows);
exit(0);
}
int
main(int argc,
char * argv[]) {
struct cmdlineInfo cmdline;
FILE * ifP;
int cols, rows;
int median;
enum medianMethod medianMethod;
pgm_init(&argc, argv);
parseCommandLine(argc, argv, &cmdline);
ifP = pm_openr(cmdline.inputFileName);
ccolso2 = cmdline.width / 2;
crowso2 = cmdline.height / 2;
pgm_readpgminit(ifP, &cols, &rows, &maxval, &format);
pgm_writepgminit(stdout, cols, rows, maxval, forceplain);
/* Allocate space for number of rows in mask size. */
grays = pgm_allocarray(cols, cmdline.height);
grayrow = pgm_allocrow(cols);
/* Read in and write out initial rows that won't get changed. */
for (row = 0; row < cmdline.height - 1; ++row) {
pgm_readpgmrow(ifP, grays[row], cols, maxval, format);
/* Write out the unchanged row. */
if (row < crowso2)
pgm_writepgmrow(stdout, grays[row], cols, maxval, forceplain);
}
median = (cmdline.height * cmdline.width) / 2;
/* Choose which sort to run. */
if (cmdline.type == MEDIAN_UNSPECIFIED) {
if ((maxval / ((cmdline.width * cmdline.height) - 1)) < cmdline.cutoff)
medianMethod = HISTOGRAM_SORT_MEDIAN;
else
medianMethod = SELECT_MEDIAN;
} else
medianMethod = cmdline.type;
switch (medianMethod) {
case SELECT_MEDIAN:
selectMedian(ifP, cmdline.width, cmdline.height, cols, rows, median);
break;
case HISTOGRAM_SORT_MEDIAN:
histogramSortMedian(ifP, cmdline.width, cmdline.height,
cols, rows, median);
break;
case MEDIAN_UNSPECIFIED:
pm_error("INTERNAL ERROR: median unspecified");
}
pm_close(ifP);
pm_close(stdout);
pgm_freearray(grays, cmdline.height);
pgm_freerow(grayrow);
return 0;
}
int
main(int argc, const char ** argv) {
FILE * ifP;
gray ** grays;
int argn;
unsigned int rows, cols;
unsigned int divisor;
unsigned int * obuf; /* malloced */
const char * const usage = "[-d <val>] height width [asciifile]";
pm_proginit(&argc, argv);
rows = 0; /* initial value */
cols = 0; /* initial value */
divisor = 1; /* initial value */
argn = 1;
if ( argc < 3 || argc > 6 )
pm_usage( usage );
if ( argv[argn][0] == '-' )
{
if ( streq( argv[argn], "-d" ) )
{
if ( argc == argn + 1 )
pm_usage( usage );
if ( sscanf( argv[argn+1], "%u", &divisor ) != 1 )
pm_usage( usage );
argn += 2;
}
else
pm_usage( usage );
}
if ( sscanf( argv[argn++], "%u", &rows ) != 1 )
pm_usage( usage );
if ( sscanf( argv[argn++], "%u", &cols ) != 1 )
pm_usage( usage );
if ( rows < 1 )
pm_error( "height is less than 1" );
if ( cols < 1 )
pm_error( "width is less than 1" );
if ( argc > argn + 1 )
pm_usage( usage );
if ( argc == argn + 1 )
ifP = pm_openr(argv[argn]);
else
ifP = stdin;
MALLOCARRAY(obuf, cols);
if (obuf == NULL)
pm_error("Unable to allocate memory for %u columns", cols);
grays = pgm_allocarray(cols, rows);
convertAsciiToPgm(ifP, cols, rows, divisor, maxval, grays, obuf);
pm_close(ifP);
pgm_writepgm(stdout, grays, cols, rows, maxval, 0);
free(obuf);
pgm_freearray(grays, rows);
return 0;
}
/** write a scrap of the data,
* return the filename,
* if the file exist do nothing
* argument fname is optional
* the coordinates of the image part are geodata e.g. Gauss Krueger **/
QString
GeoImage::part(float west, float north, float east, float south,
QString fname)
{
if (fname.isEmpty()) { //create output filname
Q_ASSERT(contains("key"));
QString dir = CleanUp::getTmpDir();
fname.sprintf("%s/%s_%f_%f_%f_%f",
dir.toLatin1().constData(),
value("key").toLatin1().constData(),
west, north, east, south);
}
qDebug("# GeoImage::part %s (%f, %f, %f, %f)",
fname.toLatin1().constData(), west,
north, east, south);
QFile f(fname);
if (f.exists())
return fname;
const void *data_p = data(); //get pointer to data
Q_ASSERT(data_p);
if (type_ == UNKNOWN)
return 0;
int dx, dy, i, j, rx1, ry1, rx2, ry2;
picBBox(west, north, east, south, rx1, ry2, rx2, ry1);
dx = rx2 - rx1 + 1;
dy = ry2 - ry1 + 1;
if (dx <= 0 || dy <= 0) {
qDebug("# (ERROR) GeoImage::part: (dx=%d=%d-%d || dy=%d=%d-%d)", dx, rx2,
rx1, dy, ry2, ry1);
throw ImageException(rx1,rx2,dx,ry1,ry2,dy);
}
FILE *of = fopen(fname.toLatin1().constData(), "w");
if (!of) {
throw FileIOException(FileIOException::OPEN_FAILED,fname);
}
switch (type_) {
case PBM:{
bit *bpi, *bpo, **dat_b_out = pbm_allocarray(dx, dy);
bit **dat_b = (bit **) data_p;
for (i = 0; i < dy; i++) {
bpi = dat_b[i + ry1] + rx1;
bpo = dat_b_out[i];
for (j = 0; j < dx; j++) {
*bpo = *bpi;
bpo++;
bpi++;
}
}
pbm_writepbm(of, (bit **) dat_b_out, dx, dy, 0);
pbm_freearray(dat_b_out, dy);
}
break;
case PGM:{
gray *gpi, *gpo, **dat_g_out = pgm_allocarray(dx, dy);
gray **dat_g = (gray **) data_p;
gray maxval = 0;
for (i = 0; i < dy; i++) {
gpi = dat_g[i + ry1] + rx1;
gpo = dat_g_out[i];
for (j = 0; j < dx; j++) {
*gpo = *gpi;
if (*gpi > maxval)
maxval = *gpi;
gpo++;
gpi++;
}
}
pgm_writepgm(of, (gray **) dat_g_out, dx, dy, maxval, 0);
pgm_freearray(dat_g_out, dy);
}
break;
case PPM:{
pixel *ppi, *ppo, **dat_p_out = ppm_allocarray(dx, dy);
pixel **dat_p = (pixel **) data_p;
pixval maxval = 255; //! should be calculated
for (i = 0; i < dy; i++) {
ppi = dat_p[i + ry1] + rx1;
ppo = dat_p_out[i];
for (j = 0; j < dx; j++) {
*ppo = *ppi;
ppo++;
ppi++;
}
}
ppm_writeppm(of, (pixel **) dat_p_out, dx, dy, maxval, 0);
ppm_freearray(dat_p_out, dy);
}
break;
default:
pfm_geo_set(geoWest(),geoNorth(),geoEast(),geoSouth());
pfm_writepfm_region_type(of, data_, cols_, rows_, minval_, maxval_,
rx1, ry1, rx2, ry2, type_);
break;
}
fclose(of);
return fname;
}
int main(int argc, char *argv[]) {
FILE *in = stdin;
FILE *out = stdout;
FILE *orig = NULL;
FILE *sig = NULL;
gray **input_image;
gray **orig_image;
char signature_name[MAXPATHLEN];
char output_name[MAXPATHLEN] = "(stdout)";
char input_name[MAXPATHLEN] = "(stdin)";
char orig_name[MAXPATHLEN];
int c;
int n = 0;
int method = -1;
int filter = 0;
char filter_name[MAXPATHLEN] = "";
int level = 0;
double alpha = 0.0;
int in_rows, in_cols, in_format;
gray in_maxval;
int orig_rows, orig_cols, orig_format;
gray orig_maxval;
int rows, cols;
int row, col;
Image_tree input_dwts;
Image_tree orig_dwts;
int verbose = 0;
progname = argv[0];
pgm_init(&argc, argv); wm_init2();
while ((c = getopt(argc, argv, "a:e:f:F:h?i:n:o:s:v:")) != EOF) {
switch (c) {
case 'a':
alpha = atof(optarg);
if (alpha <= 0.0) {
fprintf(stderr, "%s: alpha factor %f out of range\n", progname, alpha);
exit(1);
}
break;
case 'e':
method = atoi(optarg);
if (method < 0) {
fprintf(stderr, "%s: wavelet filtering method %d out of range\n", progname, method);
exit(1);
}
break;
case 'f':
filter = atoi(optarg);
if (filter <= 0) {
fprintf(stderr, "%s: filter number %d out of range\n", progname, filter);
exit(1);
}
break;
case 'F':
strcpy(filter_name, optarg);
break;
case 'h':
case '?':
usage();
break;
case 'i':
if ((orig = fopen(optarg, "rb")) == NULL) {
fprintf(stderr, "%s: unable to open original image file %s\n", progname, optarg);
exit(1);
}
strcpy(orig_name, optarg);
break;
case 'n':
n = atoi(optarg);
if (n < 1 || n > 1000) {
fprintf(stderr, "%s: watermark length %d out of range\n", progname, n);
exit(1);
}
break;
case 'o':
if ((out = fopen(optarg, "w")) == NULL) {
fprintf(stderr, "%s: unable to open output file %s\n", progname, optarg);
exit(1);
}
strcpy(output_name, optarg);
break;
case 's':
if ((sig = fopen(optarg, "r")) == NULL) {
fprintf(stderr, "%s: unable to open signature file %s\n", progname, optarg);
exit(1);
}
strcpy(signature_name, optarg);
break;
case 'v':
verbose = atoi(optarg);
if (verbose < 0) {
fprintf(stderr, "%s: verbosity level %d out of range\n", progname, verbose);
exit(1);
}
break;
}
}
argc -= optind;
argv += optind;
if (argc > 1) {
usage();
exit(1);
}
if (argc == 1 && *argv[0] != '-') {
if ((in = fopen(argv[0], "rb")) == NULL) {
fprintf(stderr, "%s: unable to open input file %s\n", progname, argv[0]);
exit(1);
}
else
strcpy(input_name, argv[0]);
}
if (!orig) {
fprintf(stderr, "%s: original image file not specified, use -i file option\n", progname);
exit(1);
}
if (sig) {
char line[32];
fgets(line, sizeof(line), sig);
if (strspn(line, "CVSG") >= 4) {
fscanf(sig, "%d\n", &n);
if (alpha == 0.0)
fscanf(sig, "%lf\n", &alpha);
else
fscanf(sig, "%*f\n");
if (method < 0)
fscanf(sig, "%d\n", &method);
else
fscanf(sig, "%*d\n");
if (filter == 0)
fscanf(sig, "%d\n", &filter);
else
fscanf(sig, "%*d\n");
if (!strcmp(filter_name, ""))
fscanf(sig, "%[^\n\r]\n", filter_name);
else
fscanf(sig, "%*[^\n\r]\n");
}
else {
fprintf(stderr, "%s: invalid signature file %s\n", progname, signature_name);
exit(1);
}
fclose(sig);
}
else {
fprintf(stderr, "%s: signature file not specified, use -s file option\n", progname);
exit(1);
}
pgm_readpgminit(in, &in_cols, &in_rows, &in_maxval, &in_format);
pgm_readpgminit(orig, &orig_cols, &orig_rows, &orig_maxval, &orig_format);
if (in_cols != orig_cols || in_rows != orig_rows) {
fprintf(stderr, "%s: input image %s does not match dimensions of original image %s\n", progname, input_name, orig_name);
exit(1);
}
cols = in_cols;
rows = in_rows;
input_image = pgm_allocarray(in_cols, in_rows);
orig_image = pgm_allocarray(orig_cols, orig_rows);
for (row = 0; row < in_rows; row++)
pgm_readpgmrow(in, input_image[row], in_cols, in_maxval, in_format);
fclose(in);
for (row = 0; row < orig_rows; row++)
pgm_readpgmrow(orig, orig_image[row], orig_cols, orig_maxval, orig_format);
fclose(orig);
level = 0;
row = rows;
col = cols;
while (n < row * col / 4.0 && row >= 2 && col >= 2) {
row /= 2;
col /= 2;
level++;
}
if (verbose >= 2) {
fprintf(stderr, "%s: extracting from coarse image (x %d/y %d) at level %d\n", progname, col, row, level);
}
init_dwt(cols, rows, filter_name, filter, level, method);
#ifdef POLLEN_STUFF
#include "pollen_stuff.c"
#endif
#ifdef PARAM_STUFF
#include "param_stuff.c"
#endif
input_dwts = fdwt(input_image);
orig_dwts = fdwt(orig_image);
fprintf(out, "CVWM\n");
fprintf(out, "%d\n", n);
{
Image_tree p = input_dwts;
Image_tree q = orig_dwts;
Image input_img;
Image orig_img;
double input_med;
double orig_med;
double input_var;
double orig_var;
while (!p->image)
p = p->coarse;
while (!q->image)
q = q->coarse;
input_img = p->image;
orig_img = q->image;
input_med = 0.0;
for (row = 0; row < input_img->height; row++)
for (col = 0; col < input_img->width; col++)
input_med += get_pixel(input_img, col, row);
input_med /= (double) (input_img->height * input_img->width);
orig_med = 0.0;
for (row = 0; row < orig_img->height; row++)
for (col = 0; col < orig_img->width; col++)
orig_med += get_pixel(orig_img, col, row);
orig_med /= (double) (orig_img->height * orig_img->width);
orig_var = 0.0;
for (row = 0; row < orig_img->height; row++)
for (col = 0; col < orig_img->width; col++)
orig_var += sqr(get_pixel(orig_img, col, row) - orig_med);
orig_var /= (double) (orig_img->height * orig_img->width);
input_var = 0.0;
for (row = 0; row < input_img->height; row++)
for (col = 0; col < input_img->width; col++)
input_var += sqr(get_pixel(input_img, col, row) - input_med);
input_var /= (double) (input_img->height * input_img->width);
orig_var = sqrt(orig_var);
input_var = sqrt(input_var);
if (verbose > 3)
fprintf(stderr, "%s: mean (input, orig): %f, %f,\n variance (input, orig): %f, %f\n", progname, input_med, orig_med, input_var, orig_var);
row = 0;
col = 0;
while (n > 0) {
double input_pix;
double orig_pix;
double x;
input_pix = get_pixel(input_img, col, row);
orig_pix = get_pixel(orig_img, col, row);
x = (((input_pix - input_med) * (orig_var / input_var) - (orig_pix / orig_med)) / (orig_pix - orig_med) - 1.0) / alpha;
fprintf(out, "%f\n", x);
if (++col == orig_img->width) { col = 0; row++; }
n--;
}
}
fclose(out);
pgm_freearray(input_image, rows);
pgm_freearray(orig_image, rows);
exit(0);
}
