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Patches for CA correction and impulse denoise.

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This commit is contained in:
Emil Martinec
2010-10-06 19:23:46 -05:00
parent 5dc2955f18
commit c5c4cf1ad4
2 changed files with 15 additions and 9 deletions
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12
rtengine/CA_correct_RT.cc
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@@ -390,8 +390,8 @@ void RawImageSource::CA_correct_RT() {
// along line segments, find the point along each segment that minimizes the color variance
// averaged over the tile; evaluate for up/down and left/right away from R/B grid point
for (rr=8; rr < rr1-8; rr++)
for (cc=8+(FC(rr,2)&1), indx=rr*TS+cc, c = FC(rr,cc); cc < cc1-8; cc+=2, indx+=2) {
for (rr=rrmin+8; rr < rrmax-8; rr++)
for (cc=ccmin+8+(FC(rr,2)&1), indx=rr*TS+cc, c = FC(rr,cc); cc < ccmax-8; cc+=2, indx+=2) {
if (rgb[indx][c]>0.8*clip_pt || Gtmp[indx]>0.8*clip_pt) continue;
@@ -430,7 +430,9 @@ void RawImageSource::CA_correct_RT() {
for (c=0; c<3; c+=2){
for (j=0; j<2; j++) {// vert/hor
//printf("hblock %d vblock %d j %d c %d areawt %d \n",hblock,vblock,j,c,areawt[j][c]);
if (areawt[j][c]>500) {
//printf("hblock %d vblock %d j %d c %d areawt %d ",hblock,vblock,j,c,areawt[j][c]);
if (areawt[j][c]>0) {
CAshift[j][c]=coeff[j][1][c]/coeff[j][2][c];
blockwt[vblock*hblsz+hblock]= areawt[j][c];//*coeff[j][2][c]/(eps+coeff[j][0][c]) ;
} else {
@@ -438,6 +440,8 @@ void RawImageSource::CA_correct_RT() {
blockwt[vblock*hblsz+hblock]=0;
}
//printf("%f \n",CAshift[j][c]);
//CAshift[j][c]=coeff[j][1][c]/coeff[j][2][c];
//blockwt[vblock*hblsz+hblock] = (float)(rr1-8)*(cc1-8)/4 * coeff[j][2][c]/(eps+coeff[j][0][c]) ;
@@ -489,7 +493,7 @@ void RawImageSource::CA_correct_RT() {
}
}
//if (verbose) fprintf (stderr,_("tile variances %f %f %f %f \n"),blockvar[0][0],blockvar[1][0],blockvar[0][2],blockvar[1][2] );
//printf ("tile variances %f %f %f %f \n",blockvar[0][0],blockvar[1][0],blockvar[0][2],blockvar[1][2] );
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

12
rtengine/impulse_denoise.h
View File

@@ -24,15 +24,17 @@
#include <algorithm>
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
// Gabor's implementation of bilateral filtering, without input pixel
// modified version of Gabor's implementation of bilateral filtering, without input pixel
#define NBRWT(a,b) (src[i - a][j - b] * ec[src[i - a][j - b]-src[i][j]+0x10000])
#define NORM(a,b) (1 + ec[src[i - a][j - b]-src[i][j]+0x10000])
#define NORM(a,b) (ec[src[i - a][j - b]-src[i][j]+0x10000])
//ec[i] = (int)(exp(-(double)(i-0x10000)*(double)(i-0x10000) / (2.0*rangewidth*rangewidth))*scale); \
#define RB_BEGIN(a,b) double scale = (a); \
int* ec = new int [0x20000]; \
for (int i=0; i<0x20000; i++) \
ec[i] = (int)(exp(-(double)(i-0x10000)*(double)(i-0x10000) / (2.0*rangewidth*rangewidth))*scale); \
ec[i] = (int)(1 + 1024/(abs(i-0x10000) + 1)); \
int rstart = b; \
int rend = H-b; \
int cstart = b; \
@@ -97,7 +99,7 @@ template<class T> void impulse_nr (T** src, T** dst, int width, int height, doub
//The cleaning algorithm starts here
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
// modified bilateral filter for lowpass image, omitting input pixel
// modified bilateral filter for lowpass image, omitting input pixel; or Gaussian blur
static float eps = 1.0;
float wtdsum, dirwt, norm;
@@ -127,7 +129,7 @@ template<class T> void impulse_nr (T** src, T** dst, int width, int height, doub
hfnbrave = (hfnbrave-hpfabs)/24;
hpfabs>(hfnbrave*(5.5-thresh)) ? impish[i][j]=1 : impish[i][j]=0;
}//now impulsive values have been corrected
}//now impulsive values have been identified
for (int i=0; i < height; i++)
for (int j=0; j < width; j++) {