static void ReadJP2KImage( GenericImage<P>& img, jas_stream_t* jp2Stream, jas_image_t* jp2Image )
{
int width = jas_image_cmptwidth( jp2Image, 0 );
int height = jas_image_cmptheight( jp2Image, 0 );
int numberOfChannels = jas_image_numcmpts( jp2Image );
jas_matrix_t* pixels = nullptr;
try
{
pixels = jas_matrix_create( 1, width );
if ( pixels == nullptr )
throw Error( "Memory allocation error reading JPEG2000 image" );
// Allocate pixel data
img.AllocateData( width, height, numberOfChannels,
(jas_clrspc_fam( jas_image_clrspc( jp2Image ) ) == JAS_CLRSPC_FAM_GRAY) ?
ColorSpace::Gray : ColorSpace::RGB );
for ( int c = 0; c < numberOfChannels; ++c )
{
int n = jas_image_cmptprec( jp2Image, c );
bool s = jas_image_cmptsgnd( jp2Image, c ) != 0;
for ( int y = 0; y < height; ++y )
{
jas_image_readcmpt( jp2Image, c, 0, y, width, 1, pixels );
typename P::sample* f = img.ScanLine( y, c );
if ( n == 8 )
{
if ( s )
for ( int x = 0; x < width; ++x )
*f++ = P::ToSample( int8( jas_matrix_get( pixels, 0, x ) ) );
else
for ( int x = 0; x < width; ++x )
*f++ = P::ToSample( uint8( jas_matrix_get( pixels, 0, x ) ) );
}
else
{
if ( s )
for ( int x = 0; x < width; ++x )
*f++ = P::ToSample( int16( jas_matrix_get( pixels, 0, x ) ) );
else
for ( int x = 0; x < width; ++x )
*f++ = P::ToSample( uint16( jas_matrix_get( pixels, 0, x ) ) );
}
}
}
jas_matrix_destroy( pixels ), pixels = nullptr;
}
catch ( ... )
{
if ( pixels != nullptr )
jas_matrix_destroy( pixels );
throw;
}
}
static JDIMENSION jpg_get_pixel_rows(j_compress_ptr cinfo, struct jpg_src_s *sinfo)
{
JSAMPLE *bufptr;
int i;
int cmptno;
int width;
int *cmpts;
cmpts = sinfo->enc->cmpts;
width = jas_image_width(sinfo->image);
if (sinfo->error) {
return 0;
}
for (cmptno = 0; cmptno < cinfo->input_components; ++cmptno) {
if (jas_image_readcmpt(sinfo->image, cmpts[cmptno], 0, sinfo->row, width, 1, sinfo->data)) {
;
}
bufptr = (sinfo->buffer[0]) + cmptno;
for (i = 0; i < width; ++i) {
*bufptr = jas_matrix_get(sinfo->data, 0, i);
bufptr += cinfo->input_components;
}
}
++sinfo->row;
return 1;
}
double pae(jas_matrix_t *x, jas_matrix_t *y)
{
double s;
double d;
int i;
int j;
s = 0.0;
for (i = 0; i < jas_matrix_numrows(x); i++) {
for (j = 0; j < jas_matrix_numcols(x); j++) {
d = abs(jas_matrix_get(y, i, j) - jas_matrix_get(x, i, j));
if (d > s) {
s = d;
}
}
}
return s;
}
double msen(jas_matrix_t *x, jas_matrix_t *y, int n)
{
double s;
double d;
int i;
int j;
s = 0.0;
for (i = 0; i < jas_matrix_numrows(x); i++) {
for (j = 0; j < jas_matrix_numcols(x); j++) {
d = jas_matrix_get(y, i, j) - jas_matrix_get(x, i, j);
if (n == 1) {
s += fabs(d);
} else if (n == 2) {
s += d * d;
} else {
abort();
}
}
}
return s / ((double) jas_matrix_numrows(x) * jas_matrix_numcols(x));
}
bool Jpeg2KDecoder::readComponent8u( uchar *data, void *_buffer,
int step, int cmpt,
int maxval, int offset, int ncmpts )
{
jas_matrix_t* buffer = (jas_matrix_t*)_buffer;
jas_image_t* image = (jas_image_t*)m_image;
int xstart = jas_image_cmpttlx( image, cmpt );
int xend = jas_image_cmptbrx( image, cmpt );
int xstep = jas_image_cmpthstep( image, cmpt );
int xoffset = jas_image_tlx( image );
int ystart = jas_image_cmpttly( image, cmpt );
int yend = jas_image_cmptbry( image, cmpt );
int ystep = jas_image_cmptvstep( image, cmpt );
int yoffset = jas_image_tly( image );
int x, y, x1, y1, j;
int rshift = cvRound(std::log(maxval/256.)/std::log(2.));
int lshift = MAX(0, -rshift);
rshift = MAX(0, rshift);
int delta = (rshift > 0 ? 1 << (rshift - 1) : 0) + offset;
for( y = 0; y < yend - ystart; )
{
jas_seqent_t* pix_row = &jas_matrix_get( buffer, y / ystep, 0 );
uchar* dst = data + (y - yoffset) * step - xoffset;
if( xstep == 1 )
{
if( maxval == 256 && offset == 0 )
for( x = 0; x < xend - xstart; x++ )
{
int pix = pix_row[x];
dst[x*ncmpts] = CV_CAST_8U(pix);
}
else
for( x = 0; x < xend - xstart; x++ )
{
int pix = ((pix_row[x] + delta) >> rshift) << lshift;
dst[x*ncmpts] = CV_CAST_8U(pix);
}
}
else if( xstep == 2 && offset == 0 )
for( x = 0, j = 0; x < xend - xstart; x += 2, j++ )
{
int pix = ((pix_row[j] + delta) >> rshift) << lshift;
dst[x*ncmpts] = dst[(x+1)*ncmpts] = CV_CAST_8U(pix);
}
else
for( x = 0, j = 0; x < xend - xstart; j++ )
/* Encode all of the code blocks associated with the current tile. */
int jpc_enc_enccblks(jpc_enc_t *enc)
{
jpc_enc_tcmpt_t *tcmpt;
jpc_enc_tcmpt_t *endcomps;
jpc_enc_rlvl_t *lvl;
jpc_enc_rlvl_t *endlvls;
jpc_enc_band_t *band;
jpc_enc_band_t *endbands;
jpc_enc_cblk_t *cblk;
jpc_enc_cblk_t *endcblks;
int i;
int j;
int mx;
int bmx;
int v;
jpc_enc_tile_t *tile;
uint_fast32_t prcno;
jpc_enc_prc_t *prc;
tile = enc->curtile;
endcomps = &tile->tcmpts[tile->numtcmpts];
for (tcmpt = tile->tcmpts; tcmpt != endcomps; ++tcmpt) {
endlvls = &tcmpt->rlvls[tcmpt->numrlvls];
for (lvl = tcmpt->rlvls; lvl != endlvls; ++lvl) {
if (!lvl->bands) {
continue;
}
endbands = &lvl->bands[lvl->numbands];
for (band = lvl->bands; band != endbands; ++band) {
if (!band->data) {
continue;
}
for (prcno = 0, prc = band->prcs; prcno < lvl->numprcs; ++prcno, ++prc) {
if (!prc->cblks) {
continue;
}
bmx = 0;
endcblks = &prc->cblks[prc->numcblks];
for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
mx = 0;
for (i = 0; i < jas_matrix_numrows(cblk->data); ++i) {
for (j = 0; j < jas_matrix_numcols(cblk->data); ++j) {
v = abs(jas_matrix_get(cblk->data, i, j));
if (v > mx) {
mx = v;
}
}
}
if (mx > bmx) {
bmx = mx;
}
cblk->numbps = JAS_MAX(jpc_firstone(mx) + 1 - JPC_NUMEXTRABITS, 0);
}
for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
cblk->numimsbs = band->numbps - cblk->numbps;
assert(cblk->numimsbs >= 0);
}
for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
if (jpc_enc_enccblk(enc, cblk->stream, tcmpt, band, cblk)) {
return -1;
}
}
}
}
}
}
return 0;
}
/* Encode all of the code blocks associated with the current tile. */
int jpc_enc_enccblks(jpc_enc_t *enc)
{
jpc_enc_tcmpt_t *tcmpt;
jpc_enc_tcmpt_t *endcomps;
jpc_enc_rlvl_t *lvl;
jpc_enc_rlvl_t *endlvls;
jpc_enc_band_t *band;
jpc_enc_band_t *endbands;
jpc_enc_cblk_t *endcblks;
int k;
int bmx;
jpc_enc_tile_t *tile;
uint_fast32_t prcno;
jpc_enc_prc_t *prc;
tile = enc->curtile;
endcomps = &tile->tcmpts[tile->numtcmpts];
for (tcmpt = tile->tcmpts; tcmpt != endcomps; ++tcmpt) {
endlvls = &tcmpt->rlvls[tcmpt->numrlvls];
for (lvl = tcmpt->rlvls; lvl != endlvls; ++lvl) {
if (!lvl->bands) {
continue;
}
endbands = &lvl->bands[lvl->numbands];
for (band = lvl->bands; band != endbands; ++band) {
if (!band->data) {
continue;
}
for (prcno = 0, prc = band->prcs; prcno < lvl->numprcs; ++prcno, ++prc) {
int error = 0;
if (!prc->cblks) {
continue;
}
bmx = 0;
endcblks = &prc->cblks[prc->numcblks];
#pragma omp parallel for reduction(|:error)
for (k=0; k<prc->numcblks; ++k) {
//OMP: for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
int v, mx, i, j;
jpc_enc_cblk_t *cblk = &(prc->cblks[k]);
//printf("Thread %d working on k %d (numcblks = %d)\n", omp_get_thread_num(), k, prc->numcblks);
mx = 0;
for (i = 0; i < jas_matrix_numrows(cblk->data); ++i) {
for (j = 0; j < jas_matrix_numcols(cblk->data); ++j) {
v = abs(jas_matrix_get(cblk->data, i, j));
if (v > mx) {
mx = v;
}
}
}
/*
if (mx > bmx) {
bmx = mx;
}
*/
cblk->numbps = JAS_MAX(jpc_firstone(mx) + 1 - JPC_NUMEXTRABITS, 0);
//OMP: }
//OMP: for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
cblk->numimsbs = band->numbps - cblk->numbps;
assert(cblk->numimsbs >= 0);
//OMP: }
//OMP: for (cblk = prc->cblks; cblk != endcblks; ++cblk) {
if (jpc_enc_enccblk(enc, cblk->stream, tcmpt, band, cblk)) {
error |= 1;
//OMP: return -1;
}
}
//printf("Exiting\n");
if(error)
return -1;
}
}
}
}
return 0;
}
jas_image_t *makediffimage(jas_matrix_t *origdata, jas_matrix_t *recondata)
{
jas_image_t *diffimage;
jas_matrix_t *diffdata[3];
int width;
int height;
int i;
int j;
int k;
jas_image_cmptparm_t compparms[3];
jas_seqent_t a;
jas_seqent_t b;
width = jas_matrix_numcols(origdata);
height = jas_matrix_numrows(origdata);
for (i = 0; i < 3; ++i) {
compparms[i].tlx = 0;
compparms[i].tly = 0;
compparms[i].hstep = 1;
compparms[i].vstep = 1;
compparms[i].width = width;
compparms[i].height = height;
compparms[i].prec = 8;
compparms[i].sgnd = jas_false;
}
if (!(diffimage = jas_image_create(3, compparms, JAS_CLRSPC_SRGB))) {
abort();
}
for (i = 0; i < 3; ++i) {
if (!(diffdata[i] = jas_matrix_create(height, width))) {
jas_eprintf("internal error\n");
return 0;
}
}
for (j = 0; j < height; ++j) {
for (k = 0; k < width; ++k) {
a = jas_matrix_get(origdata, j, k);
b = jas_matrix_get(recondata, j, k);
if (a > b) {
jas_matrix_set(diffdata[0], j, k, 255);
jas_matrix_set(diffdata[1], j, k, 0);
jas_matrix_set(diffdata[2], j, k, 0);
} else if (a < b) {
jas_matrix_set(diffdata[0], j, k, 0);
jas_matrix_set(diffdata[1], j, k, 255);
jas_matrix_set(diffdata[2], j, k, 0);
} else {
jas_matrix_set(diffdata[0], j, k, a);
jas_matrix_set(diffdata[1], j, k, a);
jas_matrix_set(diffdata[2], j, k, a);
}
}
}
for (i = 0; i < 3; ++i) {
if (jas_image_writecmpt(diffimage, i, 0, 0, width, height, diffdata[i])) {
return 0;
}
}
return diffimage;
}
CPLErr JPEG2000RasterBand::IReadBlock( int nBlockXOff, int nBlockYOff,
void * pImage )
{
int i, j;
// Decode image from the stream, if not yet
if ( !poGDS->DecodeImage() )
{
return CE_Failure;
}
// Now we can calculate the pixel offset of the top left by multiplying
// block offset with the block size.
/* In case the dimensions of the image are not multiple of the block dimensions */
/* take care of not requesting more pixels than available for the blocks at the */
/* right or bottom of the image */
int nWidthToRead = MIN(nBlockXSize, poGDS->nRasterXSize - nBlockXOff * nBlockXSize);
int nHeightToRead = MIN(nBlockYSize, poGDS->nRasterYSize - nBlockYOff * nBlockYSize);
jas_image_readcmpt( poGDS->psImage, nBand - 1,
nBlockXOff * nBlockXSize, nBlockYOff * nBlockYSize,
nWidthToRead, nHeightToRead, psMatrix );
int nWordSize = GDALGetDataTypeSize(eDataType) / 8;
int nLineSize = nBlockXSize * nWordSize;
GByte* ptr = (GByte*)pImage;
/* Pad incomplete blocks at the right or bottom of the image */
if (nWidthToRead != nBlockXSize || nHeightToRead != nBlockYSize)
memset(pImage, 0, nLineSize * nBlockYSize);
for( i = 0; i < nHeightToRead; i++, ptr += nLineSize )
{
for( j = 0; j < nWidthToRead; j++ )
{
// XXX: We need casting because matrix element always
// has 32 bit depth in JasPer
// FIXME: what about float values?
switch( eDataType )
{
case GDT_Int16:
{
((GInt16*)ptr)[j] = (GInt16)jas_matrix_get(psMatrix, i, j);
}
break;
case GDT_Int32:
{
((GInt32*)ptr)[j] = (GInt32)jas_matrix_get(psMatrix, i, j);
}
break;
case GDT_UInt16:
{
((GUInt16*)ptr)[j] = (GUInt16)jas_matrix_get(psMatrix, i, j);
}
break;
case GDT_UInt32:
{
((GUInt32*)ptr)[j] = (GUInt32)jas_matrix_get(psMatrix, i, j);
}
break;
case GDT_Byte:
default:
{
((GByte*)ptr)[j] = (GByte)jas_matrix_get(psMatrix, i, j);
}
break;
}
}
}
return CE_None;
}
static void drawview(jas_image_t *image, float vtlx, float vtly,
float sx, float sy, pixmap_t *p)
{
int i;
int j;
int k;
int red;
int grn;
int blu;
int lum;
GLshort *datap;
int x;
int y;
int *cmptlut;
int numcmpts;
int v[4];
int u[4];
int color;
cmptlut = gs.cmptlut;
switch (jas_image_colorspace(gs.image)) {
case JAS_IMAGE_CS_RGB:
case JAS_IMAGE_CS_YCBCR:
color = 1;
numcmpts = 3;
break;
case JAS_IMAGE_CS_GRAY:
default:
numcmpts = 1;
color = 0;
break;
}
for (i = 0; i < p->height; ++i) {
datap = &p->data[(p->height - 1 - i) * (4 * p->width)];
for (j = 0; j < p->width; ++j) {
if (!gs.monomode && color) {
for (k = 0; k < numcmpts; ++k) {
x = vctocc(j, jas_image_cmpttlx(gs.image, cmptlut[k]), jas_image_cmpthstep(gs.image, cmptlut[k]), vtlx, sx);
y = vctocc(i, jas_image_cmpttly(gs.image, cmptlut[k]), jas_image_cmptvstep(gs.image, cmptlut[k]), vtly, sy);
v[k] = (x >= 0 && x < jas_image_cmptwidth(gs.image, cmptlut[k]) && y >=0 && y < jas_image_cmptheight(gs.image, cmptlut[k])) ? jas_matrix_get(gs.cmpts[cmptlut[k]], y, x) : 0;
v[k] <<= 16 - jas_image_cmptprec(gs.image, cmptlut[k]);
}
switch (jas_image_colorspace(gs.image)) {
case JAS_IMAGE_CS_RGB:
break;
case JAS_IMAGE_CS_YCBCR:
u[0] = (1/1.772) * (v[0] + 1.402 * v[2]);
u[1] = (1/1.772) * (v[0] - 0.34413 * v[1] - 0.71414 * v[2]);
u[2] = (1/1.772) * (v[0] + 1.772 * v[1]);
v[0] = u[0];
v[1] = u[1];
v[2] = u[2];
break;
}
} else {
x = vctocc(j, jas_image_cmpttlx(gs.image, gs.cmptno), jas_image_cmpthstep(gs.image, gs.cmptno), vtlx, sx);
y = vctocc(i, jas_image_cmpttly(gs.image, gs.cmptno), jas_image_cmptvstep(gs.image, gs.cmptno), vtly, sy);
v[0] = (x >= 0 && x < jas_image_cmptwidth(gs.image, gs.cmptno) && y >=0 && y < jas_image_cmptheight(gs.image, gs.cmptno)) ? jas_matrix_get(gs.cmpts[gs.cmptno], y, x) : 0;
v[0] <<= 16 - jas_image_cmptprec(gs.image, gs.cmptno);
v[1] = v[0];
v[2] = v[0];
v[3] = 0;
}
for (k = 0; k < 3; ++k) {
if (v[k] < 0) {
v[k] = 0;
} else if (v[k] > 65535) {
v[k] = 65535;
}
}
*datap++ = v[0];
*datap++ = v[1];
*datap++ = v[2];
*datap++ = 0;
}
}
}