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In convert.c, corrected imagetobmp() conversion for grayscale. In tcd.c, corrected Rate modification in tcd_init_encode().

This commit is contained in:
Parvatha Elangovan 2008-02-05 15:15:38 +00:00
parent e21d865440
commit 29ea3dde47
3 changed files with 19 additions and 7 deletions
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4
ChangeLog
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@ -5,6 +5,10 @@ What's New for OpenJPEG
! : changed
+ : added
February 5, 2008
! [Parvatha] In convert.c, corrected imagetobmp() conversion for grayscale. In tcd.c, corrected Rate modification in
tcd_init_encode(). Thanks to Jeremy Furtek and Jérôme Fimes.
January 31, 2008
! [GB] In opjviewer, unification of JPEG 2000 family handlers (*.jp2, *.mj2, *.j2k) in a single file

3
codec/convert.c
View File

@ -914,7 +914,8 @@ int imagetobmp(opj_image_t * image, const char *outfile) {
if (image->comps[0].prec > 8) {
adjustR = image->comps[0].prec - 8;
printf("BMP CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);
}
}else
adjustR = 0;
for (i = 0; i < 256; i++) {
fprintf(fdest, "%c%c%c%c", i, i, i, 0);

19
libopenjpeg/tcd.c
View File

@ -418,12 +418,19 @@ void tcd_init_encode(opj_tcd_t *tcd, opj_image_t * image, opj_cp_t * cp, int cur
/* Modification of the RATE >> */
for (j = 0; j < tcp->numlayers; j++) {
tcp->rates[j] = tcp->rates[j] ?
((float) (tile->numcomps
* (tile->x1 - tile->x0)
* (tile->y1 - tile->y0)
* image->comps[0].prec))/
(tcp->rates[j] * 8 * image->comps[0].dx * image->comps[0].dy)
: 0;
cp->tp_on ?
(((float) (tile->numcomps
* (tile->x1 - tile->x0)
* (tile->y1 - tile->y0)
* image->comps[0].prec))
/(tcp->rates[j] * 8 * image->comps[0].dx * image->comps[0].dy)) - (((tcd->cur_totnum_tp - 1) * 14 )/ tcp->numlayers)
:
((float) (tile->numcomps
* (tile->x1 - tile->x0)
* (tile->y1 - tile->y0)
* image->comps[0].prec))/
(tcp->rates[j] * 8 * image->comps[0].dx * image->comps[0].dy)
: 0;
if (tcp->rates[j]) {
if (j && tcp->rates[j] < tcp->rates[j - 1] + 10) {