int asf_logscale(const char *inFile, const char *outFile)
{
int ii, jj, kk;
meta_parameters *meta = meta_read(inFile);
int band_count = meta->general->band_count;
int sample_count = meta->general->sample_count;
int line_count = meta->general->line_count;
float *bufIn = (float *) MALLOC(sizeof(float)*sample_count);
float *bufOut = (float *) MALLOC(sizeof(float)*sample_count);
char *input = appendExt(inFile, ".img");
char *output = appendExt(outFile, ".img");
FILE *fpIn = FOPEN(input, "rb");
FILE *fpOut = FOPEN(output, "wb");
for (kk=0; kk<band_count; kk++) {
for (ii=0; ii<line_count; ii++) {
get_band_float_line(fpIn, meta, kk, ii, bufIn);
for (jj=0; jj<sample_count; jj++) {
if (FLOAT_EQUIVALENT(bufIn[jj], 0.0))
bufOut[jj] = 0.0;
else
bufOut[jj] = 10.0 * log10(bufIn[jj]);
}
put_band_float_line(fpOut, meta, kk, ii, bufOut);
asfLineMeter(ii, line_count);
}
}
meta_write(meta, outFile);
meta_free(meta);
FCLOSE(fpIn);
FCLOSE(fpOut);
FREE(bufIn);
FREE(bufOut);
FREE(input);
FREE(output);
return FALSE;
}
static int save_as_asf(ImageInfo *ii,
const char *out_file, int what_to_save,
int strict_boundary, int load)
{
// See if we can open the output file up front
FILE *outFp = fopen(out_file, "wb");
if (!outFp) {
// failed to open the output file!
char errbuf[1024];
snprintf(errbuf, 1024, "Failed to open %s: %s", out_file,
strerror(errno));
message_box(errbuf);
strcat(errbuf, "\n");
printf("%s", errbuf);
return FALSE; // failure
}
assert (g_poly->n > 0);
assert (crosshair_line > 0 && crosshair_samp > 0);
meta_parameters *meta = ii->meta;
// figure out where to chop
int line_min, line_max, samp_min, samp_max, nl, ns;
compute_extent(meta, &line_min, &line_max, &samp_min, &samp_max,
&nl, &ns);
// generate metadata
char *out_metaname = appendExt(out_file, ".meta");
printf("Generating %s...\n", out_metaname);
// data will be saved as floating point, except scaled pixel values,
// which we can make bytes.
data_type_t data_type = REAL32;
if (what_to_save == SCALED_PIXEL_VALUE)
data_type = ASF_BYTE;
meta_parameters *out_meta =
build_metadata(meta, out_file, nl, ns, line_min, samp_min, data_type,
what_to_save);
// put_float_line() will always dump BYTE data if the optical block
// is present... we want to be in control of the data type, so we must
// wipe out this block
if (out_meta->optical) {
FREE(out_meta->optical);
out_meta->optical=NULL;
}
if (what_to_save == LAT_LON_2_BAND) {
out_meta->general->band_count = 2;
strcpy(out_meta->general->bands, "LAT,LON");
}
// define clipping region, if necessary
double xp[MAX_POLY_LEN+2], yp[MAX_POLY_LEN+2];
int i,j,n=0;
if (strict_boundary)
define_clipping_region(meta, &n, xp, yp);
float ndv = 0;
if (meta_is_valid_double(out_meta->general->no_data))
ndv = out_meta->general->no_data;
else if (strict_boundary) // need to set a no data value in this case
out_meta->general->no_data = 0.;
meta_write(out_meta, out_metaname);
// now actually write the data
printf("Generating %s...\n", out_file);
if (what_to_save == LAT_LON_2_BAND) {
// dump a 2-band image, lat & lon data
float *lats = MALLOC(sizeof(float)*ns);
float *lons = MALLOC(sizeof(float)*ns);
for (i=0; i<nl; ++i) {
int l = line_min+i;
for (j=0; j<ns; ++j) {
int s = samp_min+j;
if (!strict_boundary || pnpoly(n, xp, yp, s, l)) {
double lat, lon;
meta_get_latLon(meta, l, s, 0, &lat, &lon);
lats[j] = (float)lat;
lons[j] = (float)lon;
}
else {
lats[j] = ndv;
lons[j] = ndv;
}
}
put_band_float_line(outFp, out_meta, 0, i, lats);
put_band_float_line(outFp, out_meta, 1, i, lons);
asfLineMeter(i,nl);
}
free(lats);
free(lons);
}
else {
// normal case
float *buf = MALLOC(sizeof(float)*ns);
for (i=0; i<nl; ++i) {
int l = line_min+i;
for (j=0; j<ns; ++j) {
int s = samp_min+j;
float val;
if (!strict_boundary || pnpoly(n, xp, yp, s, l)) {
val = get_data(ii, what_to_save, l, s);
}
else {
val = ndv;
}
buf[j] = val;
}
put_float_line(outFp, out_meta, i, buf);
asfLineMeter(i,nl);
}
free(buf);
}
fclose(outFp);
meta_free(out_meta);
// load the generated file if we were told to
if (load)
load_file(out_file);
return TRUE;
}
static void add_to_stack(char *out, int band, char *file,
int size_x, int size_y,
double start_x, double start_y,
double per_x, double per_y, int multiband)
{
meta_parameters *metaIn = meta_read(file);
meta_parameters *metaOut = meta_read(out);
char *base = (char *) MALLOC(sizeof(char)*512);
int start_line, start_sample;
// this should work even if per_x / per_y are negative...
start_sample = (int) ((start_x - metaIn->projection->startX) / per_x + .5);
start_line = (int) ((start_y - metaIn->projection->startY) / per_y + .5);
int ns = metaIn->general->sample_count;
int nl = metaIn->general->line_count;
asfPrintStatus(" Location in stacked image is S:%d-%d, L:%d-%d\n",
start_sample, start_sample + size_x,
start_line, start_line + size_y);
if (start_sample + size_x > ns || start_line + size_y > nl) {
asfPrintError("Image extents were not calculated correctly!\n");
}
FILE *fpIn = FOPEN(file, "rb");
FILE *fpOut;
char *metaFile = appendExt(out, ".meta");
if (band > 0 || !multiband) {
fpOut = FOPEN(out, "ab");
sprintf(base, ",%s", get_basename(file));
strcat(metaOut->general->bands, base);
}
else {
fpOut = FOPEN(out, "wb");
sprintf(base, "%s", get_basename(file));
strcpy(metaOut->general->bands, base);
}
if (multiband)
metaOut->general->band_count = band + 1;
else
metaOut->general->band_count = 1;
meta_write(metaOut, metaFile);
float *line = MALLOC(sizeof(float)*size_x);
int y;
for (y=start_line; y<start_line+size_y; ++y) {
get_partial_float_line(fpIn, metaIn, y, start_sample, size_x, line);
if (multiband)
put_band_float_line(fpOut, metaOut, band, y-start_line, line);
else
put_float_line(fpOut, metaOut, y-start_line, line);
asfLineMeter(y, start_line+size_y);
}
FCLOSE(fpIn);
FCLOSE(fpOut);
FREE(line);
FREE(metaFile);
FREE(base);
meta_free(metaIn);
meta_free(metaOut);
}
int sr2gr_pixsiz(const char *infile, const char *outfile, float grPixSize)
{
int in_np, in_nl; /* input number of pixels,lines */
int out_np, out_nl; /* output number of pixels,lines */
int ii,line,band;
float oldX,oldY;
float sr2gr[MAX_IMG_SIZE];
float ml2gr[MAX_IMG_SIZE];
int a_lower[MAX_IMG_SIZE];
int lower[MAX_IMG_SIZE], upper[MAX_IMG_SIZE];
float a_ufrac[MAX_IMG_SIZE], a_lfrac[MAX_IMG_SIZE];
float ufrac[MAX_IMG_SIZE], lfrac[MAX_IMG_SIZE];
float *ibuf1,*ibuf2,*obuf;
char infile_name[512],inmeta_name[512];
char outfile_name[512],outmeta_name[512];
FILE *fpi, *fpo;
meta_parameters *in_meta;
meta_parameters *out_meta;
create_name (infile_name, infile, ".img");
create_name (outfile_name, outfile, ".img");
create_name (inmeta_name, infile, ".meta");
create_name (outmeta_name, outfile, ".meta");
in_meta = meta_read(inmeta_name);
out_meta = meta_copy(in_meta);
in_nl = in_meta->general->line_count;
in_np = in_meta->general->sample_count;
if (in_meta->sar->image_type != 'S')
{
asfPrintError("sr2gr only works with slant range images!\n");
}
oldX = in_meta->general->x_pixel_size * in_meta->sar->sample_increment;
oldY = in_meta->general->y_pixel_size * in_meta->sar->line_increment;
/* If user didn't specify a pixel size, make the pixels square & leave
the y pixel size unchanged */
if (grPixSize < 0)
grPixSize = oldY;
/*Update metadata for new pixel size*/
out_meta->sar->time_shift += ((in_meta->general->start_line)
* in_meta->sar->azimuth_time_per_pixel);
out_meta->sar->slant_shift -= ((in_meta->general->start_sample)
* in_meta->general->x_pixel_size);
out_meta->general->start_line = 0.0;
out_meta->general->start_sample = 0.0;
out_meta->sar->azimuth_time_per_pixel *= grPixSize
/ in_meta->general->y_pixel_size;
out_meta->sar->line_increment = 1.0;
out_meta->sar->sample_increment = 1.0;
if (out_meta->transform)
out_meta->transform->target_pixel_size = grPixSize;
/*Create ground/slant and azimuth conversion vectors*/
out_meta->sar->image_type = 'G';
out_meta->general->x_pixel_size = grPixSize;
out_meta->general->y_pixel_size = grPixSize;
sr2gr_vec(out_meta,oldX,grPixSize,sr2gr);
ml_vec(oldY,grPixSize,ml2gr);
out_np = MAX_IMG_SIZE;
out_nl = MAX_IMG_SIZE;
for (ii=MAX_IMG_SIZE-1; ii>0; ii--)
if ((int)sr2gr[ii] > in_np)
out_np = ii;
for (ii=MAX_IMG_SIZE-1; ii>0; ii--)
if ((int)ml2gr[ii] > in_nl)
out_nl = ii;
out_meta->general->line_count = out_nl;
out_meta->general->line_scaling *= (double)in_nl/(double)out_nl;
out_meta->general->sample_scaling = 1;
out_meta->general->sample_count = out_np;
if (out_meta->projection) {
out_meta->projection->perX = grPixSize;
out_meta->projection->perY = grPixSize;
}
meta_write(out_meta,outmeta_name);
fpi = fopenImage(infile_name,"rb");
fpo = fopenImage(outfile_name,"wb");
for (ii=0; ii<MAX_IMG_SIZE; ii++)
{
lower[ii] = (int) sr2gr[ii];
upper[ii] = lower[ii] + 1;
ufrac[ii] = sr2gr[ii] - (float) lower[ii];
lfrac[ii] = 1.0 - ufrac[ii];
a_lower[ii] = (int) ml2gr[ii];
a_ufrac[ii] = ml2gr[ii] - (float) a_lower[ii];
a_lfrac[ii] = 1.0 - a_ufrac[ii];
}
ibuf1 = (float *) MALLOC ((in_np+FUDGE_FACTOR)*sizeof(float));
ibuf2 = (float *) MALLOC ((in_np+FUDGE_FACTOR)*sizeof(float));
obuf = (float *) MALLOC (out_np*sizeof(float));
/* Initialize input arrays to 0 */
for (ii=0;ii<in_np+FUDGE_FACTOR;ii++) {
ibuf1[ii]=ibuf2[ii]=0.0;
}
/* Get the band info */
int bc = in_meta->general->band_count;
char **band_name = extract_band_names(in_meta->general->bands, bc);
/* Work dat magic! */
for (band=0; band<bc; ++band) {
asfPrintStatus("Working on band: %s\n", band_name[band]);
for (line=0; line<out_nl; line++)
{
if (a_lower[line]+1 < in_nl)
{
get_band_float_line(fpi,in_meta,band,a_lower[line], ibuf1);
get_band_float_line(fpi,in_meta,band,a_lower[line]+1,ibuf2);
}
for (ii=0; ii<out_np; ii++)
{
int val00,val01,val10,val11,tmp1,tmp2;
val00 = ibuf1[lower[ii]];
val01 = ibuf1[upper[ii]];
val10 = ibuf2[lower[ii]];
val11 = ibuf2[upper[ii]];
tmp1 = val00*lfrac[ii] + val01*ufrac[ii];
tmp2 = val10*lfrac[ii] + val11*ufrac[ii];
obuf[ii] = tmp1*a_lfrac[line] + tmp2*a_ufrac[line];
}
put_band_float_line(fpo,out_meta,band,line,obuf);
asfLineMeter(line, out_nl);
}
}
for (band=0; band<bc; ++band)
FREE(band_name[band]);
FREE(band_name);
meta_free(in_meta);
meta_free(out_meta);
FCLOSE(fpi);
FCLOSE(fpo);
return TRUE;
}
int clip(char *inFile, char *maskFile, char *outFile)
{
meta_parameters *metaIn, *metaMask;
metaIn = meta_read(inFile);
metaMask = meta_read(maskFile);
// Check whether mask file looks legitimate. The only indication that we
// have is that it should be BYTE and have one band.
if (metaMask->general->data_type != ASF_BYTE)
asfPrintStatus("Mask image does not have data type 'BYTE'!\n");
if (metaMask->general->band_count != 1)
asfPrintStatus("Mask image should have only one band!\n");
// Check whether input and mask file have the same projection parameters
if (metaIn->projection && metaMask->projection) {
// Create temporary processing directory (move outside this loop once
// we have non-projected case covered)
char *tmpDir = (char *) MALLOC(sizeof(char)*(strlen(outFile)+25));
sprintf(tmpDir, "%s-", outFile);
strcat(tmpDir, time_stamp_dir());
create_clean_dir(tmpDir);
char *mask = (char *) MALLOC(sizeof(char)*(strlen(tmpDir)+20));
sprintf(mask, "%s/mask", tmpDir);
// Check whether mask needs to be re-projected
if (metaIn->projection->type != metaMask->projection->type) {
asfPrintWarning("Mask needs to be re-projected!\n");
project_parameters_t *pp =
(project_parameters_t *) MALLOC(sizeof(project_parameters_t));
*pp = metaIn->projection->param;
/*
asf_geocode(pp, metaIn->projection->type, FALSE,
RESAMPLE_NEAREST_NEIGHBOR, metaIn->projection->height,
metaIn->projection->datum, metaIn->projection->perX,
NULL, inFile, mask, metaIn->general->no_data, FALSE);
*/
FREE(pp);
}
else {
// Check whether mask needs to be resampled
if ((metaIn->projection->perX != metaMask->projection->perX ||
metaIn->projection->perY != metaMask->projection->perY) &&
proj_params_match(metaIn, metaMask)) {
asfPrintWarning("Mask needs to be resampled!\n");
resample(inFile, mask, metaIn->projection->perX,
fabs(metaIn->projection->perY));
}
else if (!proj_params_match(metaIn, metaMask)) {
asfPrintWarning("Mask needs to be re-projected!\n");
project_parameters_t *pp =
(project_parameters_t *) MALLOC(sizeof(project_parameters_t));
*pp = metaIn->projection->param;
/*
asf_geocode(pp, metaIn->projection->type, FALSE,
RESAMPLE_NEAREST_NEIGHBOR, metaIn->projection->height,
metaIn->projection->datum, metaIn->projection->perX,
NULL, inFile, mask, metaIn->general->no_data, FALSE);
*/
FREE(pp);
}
else
copyImgAndMeta(maskFile, mask);
}
meta_free(metaMask);
// Now we should have matching projections in both input files
// Let's figure out the overlapping part of the two input files
metaMask = meta_read(mask);
int nl = metaMask->general->line_count;
int ns = metaMask->general->sample_count;
int startLine = (int)
((metaMask->projection->startY - metaIn->projection->startY + 0.5) /
metaMask->projection->perY) - metaMask->general->start_line;
int startSample = (int)
((metaMask->projection->startX - metaIn->projection->startX + 0.5) /
metaMask->projection->perX) - metaMask->general->start_sample;
int endLine = startLine + metaMask->general->line_count;
int endSample = startSample + metaMask->general->sample_count;
double coverage =
(endLine-startLine) * (endSample-startSample) * 100.0 / (ns*nl);
printf("startLine: %i, startSample: %i\n", startLine, startSample);
printf("endLine: %i, endSample: %i\n", endLine, endSample);
printf("Converage: %.1f %%\n", coverage);
// Fail when there is no overlap
if (startLine > metaIn->general->line_count || endLine < 0 ||
startSample > metaIn->general->sample_count || endSample < 0) {
asfPrintStatus("Mask image does not cover the input image!\n");
return (1);
}
// Setup files and memory
char *inImg = appendExt(inFile, ".img");
char *maskImg = appendExt(maskFile, ".img");
char *outImg = appendExt(outFile, ".img");
float *inBuf =
(float *) MALLOC(sizeof(float)*metaIn->general->sample_count);
unsigned char *maskBuf = (unsigned char *) MALLOC(sizeof(char)*ns);
float *outBuf = (float *) MALLOC(sizeof(float)*ns);
char **band_name = extract_band_names(metaIn->general->bands,
metaIn->general->band_count);
FILE *fpIn = FOPEN(inImg, "rb");
FILE *fpMask = FOPEN(maskImg, "rb");
FILE *fpOut = FOPEN(outImg, "wb");
// Write metadata for output
meta_parameters *metaOut = meta_read(maskFile);
metaOut->general->band_count = metaIn->general->band_count;
metaOut->general->data_type = metaIn->general->data_type;
meta_write(metaOut, outFile);
// Rock and roll
int ii, jj, kk;
for (ii=0; ii<nl; ii++) {
get_byte_line(fpMask, metaMask, ii, maskBuf);
for (kk=0; kk<metaIn->general->band_count; kk++) {
if ((startLine+ii) >= 0 && ii < endLine)
get_band_float_line(fpIn, metaIn, kk, startLine+ii, inBuf);
else
for (jj=0; jj<ns; jj++)
inBuf[jj] = 0.0;
for (jj=0; jj<ns; jj++) {
if (maskBuf[jj] == 0 || inBuf[startSample+jj] == 0 ||
(startSample+jj) < 0 || jj > endSample)
outBuf[jj] = metaIn->general->no_data;
else
outBuf[jj] = inBuf[startSample+jj]*maskBuf[jj];
}
put_band_float_line(fpOut, metaOut, kk, ii, outBuf);
}
asfLineMeter(ii, nl);
}
FCLOSE(fpIn);
FCLOSE(fpMask);
FCLOSE(fpOut);
// Clean up
for (ii=0; ii<metaIn->general->band_count; ii++)
FREE(band_name[ii]);
FREE(band_name);
FREE(inBuf);
FREE(maskBuf);
FREE(outBuf);
meta_free(metaIn);
meta_free(metaMask);
meta_free(metaOut);
remove_dir(tmpDir);
FREE(tmpDir);
}
else
asfPrintError("Non-projected case not covered yet!\n");
return 0;
}
void c2p_ext(const char *inDataName, const char *inMetaName,
const char *outfile, int multilook, int banded)
{
meta_parameters *in_meta = meta_read(inMetaName);
int data_type = in_meta->general->data_type;
// the old code did this, but why??
in_meta->general->data_type = meta_polar2complex(data_type);
// some sanity checks
switch (data_type) {
case COMPLEX_BYTE:
case COMPLEX_INTEGER16:
case COMPLEX_INTEGER32:
case COMPLEX_REAL32:
case COMPLEX_REAL64:
break;
default:
asfPrintError("c2p: %s is not a complex image.\n", inDataName);
}
if (in_meta->general->band_count != 1)
asfPrintError("c2p: %s is not a single-band image.\n", inDataName);
if (!in_meta->sar)
asfPrintError("c2p: %s is missing a SAR block.\n", inDataName);
asfPrintStatus("Converting complex image to amplitude/phase...\n");
int nl = in_meta->general->line_count;
int ns = in_meta->general->sample_count;
// process 1 line at a time when not multilooking, otherwise grab nlooks
int nlooks = multilook ? in_meta->sar->look_count : 1;
if (nlooks == 1 && multilook) {
asfPrintStatus("Not multilooking, look_count is 1.\n");
multilook = FALSE;
}
if (multilook)
asfPrintStatus("Multilooking with %d looks.\n", nlooks);
meta_parameters *out_meta = meta_read(inMetaName);
out_meta->general->data_type = meta_complex2polar(data_type);
// set up input/output files
FILE *fin = fopenImage(inDataName, "rb");
// we either have 1 or 2 output files, per the "banded" flag.
char *outfile_img = appendExt(outfile, ".img");
char *amp_name=NULL, *phase_name=NULL;
FILE *fout_banded=NULL, *fout_amp=NULL, *fout_phase=NULL;
if (banded) {
asfPrintStatus("Output is 2-band image: %s\n", outfile_img);
fout_banded = fopenImage(outfile_img, "wb");
} else {
amp_name = appendToBasename(outfile_img, "_amp");
phase_name = appendToBasename(outfile_img, "_phase");
asfPrintStatus("Output amplitude file: %s\n", amp_name);
asfPrintStatus("Output phase file: %s\n", phase_name);
fout_amp = fopenImage(amp_name, "wb");
fout_phase = fopenImage(phase_name, "wb");
}
if (banded)
assert(fout_banded && !fout_amp && !fout_phase);
else
assert(!fout_banded && fout_amp && fout_phase);
// get the metadata band_count correct, needed in the put_* calls
if (banded) {
out_meta->general->band_count = 2;
strcpy(out_meta->general->bands, "AMP,PHASE");
}
// input buffer
complexFloat *cpx = MALLOC(sizeof(complexFloat)*ns*nlooks);
// output buffers
float *amp = MALLOC(sizeof(float)*ns*nlooks);
float *phase = MALLOC(sizeof(float)*ns*nlooks);
int line_in; // line in the input image
int line_out=0; // line in the output image
int samp; // sample #, loop index
int l; // line loop index, iterates over the lines in the block
out_meta->general->line_count = (int)ceil((double)nl/(double)nlooks);
for (line_in=0; line_in<nl; line_in+=nlooks)
{
// lc = "line count" -- how many lines to read. normally we will read
// nlooks lines, but near eof we might have to read fewer
int lc = nlooks;
if (line_in + lc > nl)
lc = nl - line_in;
// read "nlooks" (or possibly fewer, if near eof) lines of data
int blockSize = get_complexFloat_lines(fin,in_meta,line_in,lc,cpx);
if (blockSize != lc*ns)
asfPrintError("bad blockSize: bs=%d nlooks=%d ns=%d\n",
blockSize, nlooks, ns);
// first, compute the power/phase
for (l=0; l<lc; ++l) {
for (samp=0; samp<ns; ++samp) {
int k = l*ns + samp; // index into the block
float re = cpx[k].real;
float im = cpx[k].imag;
if (re != 0.0 || im != 0.0) {
amp[k] = re*re + im*im;
phase[k] = atan2(im, re);
} else {
amp[k] = phase[k] = 0.0;
}
}
}
// now multilook, if requested
if (multilook) {
// put the multilooked data in the first "row" of amp,phase
for (samp=0; samp<ns; ++samp) {
float value = 0.0;
for (l=0; l<lc; ++l)
value += amp[l*ns + samp];
amp[samp] = sqrt(value/(float)lc);
value = 0.0;
for (l=0; l<lc; ++l)
value += phase[l*ns + samp];
phase[samp] = value/(float)lc;
}
}
else {
for (samp=0; samp<ns*lc; ++samp)
amp[samp] = sqrt(amp[samp]);
}
// write out a line (multilooked) or a bunch of lines (not multi)
if (multilook) {
if (banded) {
put_band_float_line(fout_banded, out_meta, 0, line_out, amp);
put_band_float_line(fout_banded, out_meta, 1, line_out, phase);
} else {
put_float_line(fout_amp, out_meta, line_out, amp);
put_float_line(fout_phase, out_meta, line_out, phase);
}
++line_out;
} else {
for (l=0; l<lc; ++l) {
if (banded) {
put_band_float_line(fout_banded, out_meta, 0, line_in+l, amp);
put_band_float_line(fout_banded, out_meta, 1, line_in+l, phase);
} else {
put_float_line(fout_amp, out_meta, line_in+l, amp);
put_float_line(fout_phase, out_meta, line_in+l, phase);
}
++line_out;
}
}
asfPercentMeter((float)line_in/(float)(nl));
}
asfPercentMeter(1.0);
fclose(fin);
if (fout_banded) fclose(fout_banded);
if (fout_amp) fclose(fout_amp);
if (fout_phase) fclose(fout_phase);
if (multilook) {
if (out_meta->general->line_count != line_out)
asfPrintError("Line counts don't match: %d != %d\n",
out_meta->general->line_count, line_out);
out_meta->general->y_pixel_size *= nlooks;
out_meta->sar->azimuth_time_per_pixel *= nlooks;
out_meta->sar->multilook = TRUE;
} else
assert(line_out == nl);
// write out the metadata, different whether multi-banded or not
if (banded) {
assert(!amp_name && !phase_name);
meta_write(out_meta, outfile);
} else {
assert(amp_name && phase_name);
out_meta->general->image_data_type = AMPLITUDE_IMAGE;
meta_write(out_meta, amp_name);
out_meta->general->image_data_type = PHASE_IMAGE;
meta_write(out_meta, phase_name);
}
if (multilook)
asfPrintStatus("Original line count: %d, after multilooking: %d "
"(%d looks)\n", nl, line_out, nlooks);
meta_free(in_meta);
meta_free(out_meta);
FREE(amp);
FREE(phase);
FREE(cpx);
FREE(outfile_img);
FREE(amp_name);
FREE(phase_name);
}
int asf_calibrate(const char *inFile, const char *outFile,
radiometry_t outRadiometry, int wh_scaleFlag)
{
meta_parameters *metaIn = meta_read(inFile);
meta_parameters *metaOut = meta_read(inFile);
if (!metaIn->calibration) {
asfPrintError("This data cannot be calibrated, missing calibration block.\n");
}
// Check for valid output radiometry
if (outRadiometry == r_AMP || outRadiometry == r_POWER)
asfPrintError("Invalid radiometry (%s) passed into calibration function!\n",
radiometry2str(outRadiometry));
// Check whether output radiometry fits with Woods Hole scaling flag
if (wh_scaleFlag && outRadiometry >= r_SIGMA && outRadiometry <= r_GAMMA)
outRadiometry += 3;
// This can only work if the image is in some SAR geometry
if (metaIn->projection && metaIn->projection->type != SCANSAR_PROJECTION)
asfPrintError("Can't apply calibration factors to map projected images\n"
"(Amplitude or Power only)\n");
radiometry_t inRadiometry = metaIn->general->radiometry;
asfPrintStatus("Calibrating %s image to %s image\n\n",
radiometry2str(inRadiometry), radiometry2str(outRadiometry));
// FIXME: This function should be able to remap between different
// radiometry projections.
if (metaIn->general->radiometry != r_AMP)
asfPrintError("Currently only AMPLITUDE as radiometry is supported!\n");
metaOut->general->radiometry = outRadiometry;
int dbFlag = FALSE;
if (outRadiometry >= r_SIGMA && outRadiometry <= r_GAMMA)
metaOut->general->no_data = 0.0001;
if (outRadiometry >= r_SIGMA_DB && outRadiometry <= r_GAMMA_DB) {
metaOut->general->no_data = -40.0;
dbFlag = TRUE;
}
if (metaIn->general->image_data_type != POLARIMETRIC_IMAGE) {
if (outRadiometry == r_SIGMA || outRadiometry == r_SIGMA_DB)
metaOut->general->image_data_type = SIGMA_IMAGE;
else if (outRadiometry == r_BETA || outRadiometry == r_BETA_DB)
metaOut->general->image_data_type = BETA_IMAGE;
else if (outRadiometry == r_GAMMA || outRadiometry == r_GAMMA_DB)
metaOut->general->image_data_type = GAMMA_IMAGE;
}
if (wh_scaleFlag)
metaOut->general->data_type = ASF_BYTE;
char *input = appendExt(inFile, ".img");
char *output = appendExt(outFile, ".img");
FILE *fpIn = FOPEN(input, "rb");
FILE *fpOut = FOPEN(output, "wb");
int dualpol = strncmp_case(metaIn->general->mode, "FBD", 3) == 0 ? 1 : 0;
int band_count = metaIn->general->band_count;
int sample_count = metaIn->general->sample_count;
int line_count = metaIn->general->line_count;
char **bands =
extract_band_names(metaIn->general->bands, band_count);
float *bufIn = (float *) MALLOC(sizeof(float)*sample_count);
float *bufOut = (float *) MALLOC(sizeof(float)*sample_count);
float *bufIn2 = NULL, *bufOut2 = NULL, *bufOut3 = NULL;
if (dualpol && wh_scaleFlag) {
bufIn2 = (float *) MALLOC(sizeof(float)*sample_count);
bufOut2 = (float *) MALLOC(sizeof(float)*sample_count);
bufOut3 = (float *) MALLOC(sizeof(float)*sample_count);
metaOut->general->band_count = 3;
sprintf(metaOut->general->bands, "%s,%s,%s-%s",
bands[0], bands[1], bands[0], bands[1]);
}
int ii, jj, kk;
float cal_dn, cal_dn2;
double incid;
if (dualpol && wh_scaleFlag) {
metaOut->general->image_data_type = RGB_STACK;
for (ii=0; ii<line_count; ii++) {
get_band_float_line(fpIn, metaIn, 0, ii, bufIn);
get_band_float_line(fpIn, metaIn, 1, ii, bufIn2);
for (jj=0; jj<sample_count; jj++) {
// Taking the remapping of other radiometries out for the moment
//if (inRadiometry >= r_SIGMA && inRadiometry <= r_BETA_DB)
//bufIn[jj] = cal2amp(metaIn, incid, jj, bands[kk], bufIn[jj]);
incid = meta_incid(metaIn, ii, jj);
cal_dn =
get_cal_dn(metaOut, incid, jj, bufIn[jj], bands[0], dbFlag);
cal_dn2 =
get_cal_dn(metaOut, incid, jj, bufIn2[jj], bands[1], dbFlag);
if (FLOAT_EQUIVALENT(cal_dn, metaIn->general->no_data) ||
cal_dn == cal_dn2) {
bufOut[jj] = 0;
bufOut2[jj] = 0;
bufOut3[jj] = 0;
}
else {
bufOut[jj] = (cal_dn + 31) / 0.15 + 1.5;
bufOut2[jj] = (cal_dn2 + 31) / 0.15 + 1.5;
bufOut3[jj] = bufOut[jj] - bufOut2[jj];
}
}
put_band_float_line(fpOut, metaOut, 0, ii, bufOut);
put_band_float_line(fpOut, metaOut, 1, ii, bufOut2);
put_band_float_line(fpOut, metaOut, 2, ii, bufOut3);
asfLineMeter(ii, line_count);
}
}
else {
for (kk=0; kk<band_count; kk++) {
for (ii=0; ii<line_count; ii++) {
get_band_float_line(fpIn, metaIn, kk, ii, bufIn);
for (jj=0; jj<sample_count; jj++) {
// Taking the remapping of other radiometries out for the moment
//if (inRadiometry >= r_SIGMA && inRadiometry <= r_BETA_DB)
//bufIn[jj] = cal2amp(metaIn, incid, jj, bands[kk], bufIn[jj]);
if (strstr(bands[kk], "PHASE") == NULL) {
incid = meta_incid(metaIn, ii, jj);
cal_dn =
get_cal_dn(metaOut, incid, jj, bufIn[jj], bands[kk], dbFlag);
if (wh_scaleFlag) {
if (FLOAT_EQUIVALENT(cal_dn, metaIn->general->no_data))
bufOut[jj] = 0;
else
bufOut[jj] = (cal_dn + 31) / 0.15 + 1.5;
}
else
bufOut[jj] = cal_dn;
}
else // PHASE band, do nothing
bufOut[jj] = bufIn[jj];
}
put_band_float_line(fpOut, metaOut, kk, ii, bufOut);
asfLineMeter(ii, line_count);
}
if (kk==0)
sprintf(metaOut->general->bands, "%s-%s",
radiometry2str(outRadiometry), bands[kk]);
else {
char tmp[255];
sprintf(tmp, ",%s-%s", radiometry2str(outRadiometry), bands[kk]);
strcat(metaOut->general->bands, tmp);
}
}
}
meta_write(metaOut, outFile);
meta_free(metaIn);
meta_free(metaOut);
FREE(bufIn);
FREE(bufOut);
if (dualpol) {
FREE(bufIn2);
FREE(bufOut2);
FREE(bufOut3);
}
for (kk=0; kk<band_count; ++kk)
FREE(bands[kk]);
FREE(bands);
FCLOSE(fpIn);
FCLOSE(fpOut);
FREE(input);
FREE(output);
return FALSE;
}
void import_radarsat2(const char *inBaseName, radiometry_t radiometry,
const char *outBaseName, int ampOnly)
{
FILE *fp;
radarsat2_meta *radarsat2;
meta_parameters *meta;
char **inDataNames=NULL, inDataName[1024], *inMetaName=NULL;
char *outDataName=NULL, str[512];
float *amp = NULL, *phase = NULL, *tmp = NULL, re, im;
int band, sample;
// Check radiometry
if (radiometry != r_AMP) {
asfPrintWarning("Radiometry other than AMPLITUDE is currently not "
"supported.\n");
radiometry = r_AMP;
}
if (!fileExists(inBaseName))
inMetaName = appendExt(inBaseName, ".xml");
else {
inMetaName = (char *) MALLOC(sizeof(char)*1024);
strcpy(inMetaName, inBaseName);
}
outDataName = appendExt(outBaseName, ".img");
radarsat2 = read_radarsat2_meta(inMetaName);
asfPrintStatus(" DataType: %s, ProductType: %s\n",
radarsat2->dataType, radarsat2->productType);
if (strcmp_case(radarsat2->dataType, "COMPLEX") != 0)
asfPrintError("Currently only complex data supported!\n");
meta = radarsat2meta(radarsat2);
meta_write(meta, outDataName);
// Let's check the GeoTIFF data.
// Unfortunately, there is no identifier in the GeoTIFF that would identify
// the data as Radarsat-2 data.
//
// The only thing that we can actually do is to look whether the data in the
// GeoTIFF file fit the general bill. We can the image dimensions. The data
// needs to have 2 bands (I and Q) and 16 bit. The citation geokey needs to
// be the really non-descriptive "Uncorrected Satellite Data".
TIFF *tiff = NULL;
GTIF *gtif = NULL;
data_type_t data_type;
short sample_format, bits_per_sample, planar_config;
short num_bands;
int is_scanline_format, is_palette_color_tiff, wrong=FALSE;
char *error_message = (char *) MALLOC(sizeof(char)*2048);
inDataNames = extract_band_names(meta->general->basename,
meta->general->band_count);
fp = FOPEN(outDataName, "wb");
int band_count = radarsat2->band_count;
if (ampOnly) {
strcpy(meta->general->bands, "AMP");
meta->general->band_count = 1;
band_count = 1;
}
for (band=0; band<band_count; band++) {
// path from the xml (metadata) file
char *path = get_dirname(inBaseName);
if (strlen(path)>0) {
strcpy(inDataName, path);
if (inDataName[strlen(inDataName)-1] != '/')
strcat(inDataName, "/");
}
else
strcpy(inDataName, "");
free(path);
strcat(inDataName, inDataNames[band]);
tiff = XTIFFOpen(inDataName, "r");
if (!tiff)
asfPrintError("Could not open data file (%s)\n", inDataName);
gtif = GTIFNew(tiff);
if (!gtif)
asfPrintError("Could not read GeoTIFF keys from data file (%s)\n",
inDataName);
// Check image dimensions
uint32 tif_sample_count;
uint32 tif_line_count;
TIFFGetField(tiff, TIFFTAG_IMAGELENGTH, &tif_line_count);
TIFFGetField(tiff, TIFFTAG_IMAGEWIDTH, &tif_sample_count);
if ((meta->general->sample_count != tif_sample_count) ||
(meta->general->line_count != tif_line_count))
asfPrintError(error_message,
"Problem with image dimensions. Was looking for %d lines "
"and %d samples.\nFound %ld lines and %ld samples instead!"
"\n",
meta->general->line_count, meta->general->sample_count,
tif_line_count, tif_sample_count);
// Check general TIFF tags
get_tiff_data_config(tiff, &sample_format, &bits_per_sample, &planar_config,
&data_type, &num_bands, &is_scanline_format,
&is_palette_color_tiff, REPORT_LEVEL_WARNING);
// The specs say the data is supposed to be unsigned but it is not.
// Let is pass as long as we are talking about integer data here
strcpy(error_message, "");
if (sample_format != SAMPLEFORMAT_UINT &&
sample_format != SAMPLEFORMAT_INT) {
strcat(error_message,
"Problem with sampling format. Was looking for integer, ");
if (sample_format == SAMPLEFORMAT_COMPLEXIEEEFP)
strcat(error_message, "found complex floating point instead!\n");
else if (sample_format == SAMPLEFORMAT_COMPLEXINT)
strcat(error_message, "found complex integer instead!\n");
else if (sample_format == SAMPLEFORMAT_IEEEFP)
strcat(error_message, "found floating point instead!\n");
else if (sample_format == SAMPLEFORMAT_VOID)
strcat(error_message, "found void instead!\n");
wrong = TRUE;
}
if (bits_per_sample != 16) {
sprintf(str, "Problem with bits per sample. Was looking for 16, found %d "
"instead!\n", bits_per_sample);
strcat(error_message, str);
wrong = TRUE;
}
if (data_type != INTEGER16) {
strcat(error_message, "Problem with data type. Was looking INTEGER16, ");
if (data_type == ASF_BYTE)
strcat(error_message, "found BYTE instead!\n");
else if (data_type == INTEGER32)
strcat(error_message, "found INTEGER32 instead!\n");
else if (data_type == REAL32)
strcat(error_message, "found REAL32 instead!\n");
else if (data_type == REAL64)
strcat(error_message, "found REAL64 instead!\n");
else if (data_type == COMPLEX_BYTE)
strcat(error_message, "found COMPLEX_BYTE instead!\n");
else if (data_type == COMPLEX_INTEGER16)
strcat(error_message, "found COMPLEX_INTEGER16 instead!\n");
else if (data_type == COMPLEX_INTEGER32)
strcat(error_message, "found COMPLEX_INTEGER32 instead!\n");
else if (data_type == COMPLEX_REAL32)
strcat(error_message, "found COMPLEX_REAL32 instead!\n");
else if (data_type == COMPLEX_REAL64)
strcat(error_message, "found COMPLEX_REAL64 instead!\n");
wrong = TRUE;
}
if (num_bands != 2) {
sprintf(str, "Problem with number of bands. Was looking for 2, "
"found %d instead!\n", num_bands);
strcat(error_message, str);
wrong = TRUE;
}
if (wrong)
asfPrintError(error_message);
// Check GTCitationGeoKey
char *citation = NULL;
int citation_length, typeSize;
tagtype_t citation_type;
citation_length = GTIFKeyInfo(gtif, GTCitationGeoKey, &typeSize,
&citation_type);
if (citation_length > 0) {
citation = (char *) MALLOC(citation_length * typeSize);
GTIFKeyGet(gtif, GTCitationGeoKey, citation, 0, citation_length);
if (citation &&
strcmp_case(citation, "UNCORRECTED SATELLITE DATA") != 0) {
asfPrintError("Problem with GTCitationGeoKey. Was looking for "
"'Uncorrected Satellite Data',\nfound '%s' instead!\n",
citation);
}
}
else
asfPrintError("Problem with GTCitationGeoKey. Was looking for "
"'Uncorrected Satellite Data',\ndid not find any key!\n");
tiff_type_t tiffInfo;
get_tiff_type(tiff, &tiffInfo);
if (tiffInfo.format != SCANLINE_TIFF &&
tiffInfo.format != STRIP_TIFF &&
tiffInfo.format != TILED_TIFF)
asfPrintError("Can't read the GeoTIFF file (%s). Unrecognized TIFF "
"type!\n", inDataNames[band]);
// If we made it here, we are reasonably sure that we have the file that
// we are looking for.
asfPrintStatus("\n Importing %s ...\n", inDataNames[band]);
uint32 scanlineSize = TIFFScanlineSize(tiff);
tdata_t *tiff_real_buf = _TIFFmalloc(scanlineSize);
tdata_t *tiff_imag_buf = _TIFFmalloc(scanlineSize);
if (!tiff_real_buf || !tiff_imag_buf)
asfPrintError("Can't allocate buffer for reading TIFF lines!\n");
amp = (float *) MALLOC(sizeof(float)*meta->general->sample_count);
phase = (float *) MALLOC(sizeof(float)*meta->general->sample_count);
// Check whether we need to flip the image in any fashion
int flip_vertical = FALSE;
if (strcmp_case(radarsat2->lineTimeOrdering, "DECREASING") == 0) {
asfPrintStatus(" Data will be flipped vertically while ingesting!\n");
flip_vertical = TRUE;
}
int flip_horizontal = FALSE;
if (strcmp_case(radarsat2->pixelTimeOrdering, "DECREASING") == 0) {
asfPrintStatus(" Data will be flipped horizontally while ingesting!\n");
flip_horizontal = TRUE;
}
if (flip_horizontal)
tmp = (float *) MALLOC(sizeof(float)*meta->general->sample_count);
// FIXME: still need to implement flipping vertically
// Read file line by line
uint32 row;
int sample_count = meta->general->sample_count;
int line_count = meta->general->line_count;
for (row=0; row<(uint32)meta->general->line_count; row++) {
asfLineMeter(row, meta->general->line_count);
if (flip_vertical) {
switch (tiffInfo.format)
{
case SCANLINE_TIFF:
TIFFReadScanline(tiff, tiff_real_buf, line_count-row-1, 0);
TIFFReadScanline(tiff, tiff_imag_buf, line_count-row-1, 1);
break;
case STRIP_TIFF:
ReadScanline_from_TIFF_Strip(tiff, tiff_real_buf,
line_count-row-1, 0);
ReadScanline_from_TIFF_Strip(tiff, tiff_imag_buf,
line_count-row-1, 1);
break;
case TILED_TIFF:
ReadScanline_from_TIFF_TileRow(tiff, tiff_real_buf,
line_count-row-1, 0);
ReadScanline_from_TIFF_TileRow(tiff, tiff_imag_buf,
line_count-row-1, 1);
break;
default:
asfPrintError("Can't read this TIFF format!\n");
break;
}
}
else {
switch (tiffInfo.format)
{
case SCANLINE_TIFF:
TIFFReadScanline(tiff, tiff_real_buf, row, 0);
TIFFReadScanline(tiff, tiff_imag_buf, row, 1);
break;
case STRIP_TIFF:
ReadScanline_from_TIFF_Strip(tiff, tiff_real_buf, row, 0);
ReadScanline_from_TIFF_Strip(tiff, tiff_imag_buf, row, 1);
break;
case TILED_TIFF:
ReadScanline_from_TIFF_TileRow(tiff, tiff_real_buf, row, 0);
ReadScanline_from_TIFF_TileRow(tiff, tiff_imag_buf, row, 1);
break;
default:
asfPrintError("Can't read this TIFF format!\n");
break;
}
}
for (sample=0; sample<sample_count; sample++) {
switch (sample_format)
{
case SAMPLEFORMAT_UINT:
re = (float)(((uint16*)tiff_real_buf)[sample]);
im = (float)(((uint16*)tiff_imag_buf)[sample]);
break;
case SAMPLEFORMAT_INT:
re = (float)(((int16*)tiff_real_buf)[sample]);
im = (float)(((int16*)tiff_imag_buf)[sample]);
break;
}
amp[sample] = sqrt(re*re + im*im);
phase[sample] = atan2(im, re);
}
if (flip_horizontal) {
for (sample=0; sample<sample_count; sample++)
tmp[sample] = amp[sample];
for (sample=0; sample<sample_count; sample++)
amp[sample] = tmp[sample_count-sample-1];
}
put_band_float_line(fp, meta, band*2, (int)row, amp);
if (!ampOnly)
put_band_float_line(fp, meta, band*2+1, (int)row, phase);
}
FREE(amp);
FREE(phase);
if (tmp)
FREE(tmp);
_TIFFfree(tiff_real_buf);
_TIFFfree(tiff_imag_buf);
GTIFFree(gtif);
XTIFFClose(tiff);
}
// update the name field with directory name
char *path = get_dirname(inBaseName);
if (strlen(path)<=0)
path = g_get_current_dir();
char *p = path, *q = path;
while (q) {
if ((q = strchr(p, DIR_SEPARATOR)) != NULL)
p = q+1;
}
sprintf(meta->general->basename, "%s", p);
FREE(path);
meta_write(meta, outDataName);
meta_free(meta);
FREE(radarsat2);
FCLOSE(fp);
}
