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Bugfixes for AMaZE. Fixes many issues with artifacts in regions of clipped highlights.

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This commit is contained in:
Emil Martinec
2010-08-04 09:33:52 -05:00
parent 45c0c817a3
commit ab95e09a68
1 changed files with 24 additions and 93 deletions
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117
rtengine/amaze_interpolate_RT.cc
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@@ -49,6 +49,9 @@ void RawImageSource::amaze_demosaic_RT() {
for (int i=0; i<H; i++) {
blue[i] = new unsigned short[W];
}
static const float pre_mul[3] = {ri->red_multiplier,ri->green_multiplier,ri->blue_multiplier};
#define TS 512 // Tile size; the image is processed in square tiles to lower memory requirements and facilitate multi-threading
@@ -316,81 +319,7 @@ void RawImageSource::amaze_demosaic_RT() {
float rbvarp, rbvarm;
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
/*
char *buffer; // TS*TS*168
float (*rgb)[3]; // TS*TS*12
float (*delh); // TS*TS*4
float (*delv); // TS*TS*4
float (*delhsq); // TS*TS*4
float (*delvsq); // TS*TS*4
float (*dirwts)[2]; // TS*TS*8
float (*vcd); // TS*TS*4
float (*hcd); // TS*TS*4
float (*vcdalt); // TS*TS*4
float (*hcdalt); // TS*TS*4
float (*vcdsq); // TS*TS*4
float (*hcdsq); // TS*TS*4
float (*cddiffsq); // TS*TS*4
float (*hvwt); // TS*TS*4
float (*Dgrb)[2]; // TS*TS*8
float (*delp); // TS*TS*4
float (*delm); // TS*TS*4
float (*rbint); // TS*TS*4
float (*Dgrbh2); // TS*TS*4
float (*Dgrbv2); // TS*TS*4
float (*dgintv); // TS*TS*4
float (*dginth); // TS*TS*4
float (*Dgrbp1); // TS*TS*4
float (*Dgrbm1); // TS*TS*4
float (*Dgrbpsq1); // TS*TS*4
float (*Dgrbmsq1); // TS*TS*4
float (*cfa); // TS*TS*4
float (*pmwt); // TS*TS*4
float (*rbp); // TS*TS*4
float (*rbm); // TS*TS*4
int (*nyquist); // TS*TS*4
// assign working space
buffer = (char *) malloc(35*sizeof(float)*TS*TS);
//merror(buffer,"amaze_interpolate()");
memset(buffer,0,35*sizeof(float)*TS*TS);
// rgb array
rgb = (float (*)[3]) buffer; //pointers to array
delh = (float (*)) (buffer + 3*sizeof(float)*TS*TS);
delv = (float (*)) (buffer + 4*sizeof(float)*TS*TS);
delhsq = (float (*)) (buffer + 5*sizeof(float)*TS*TS);
delvsq = (float (*)) (buffer + 6*sizeof(float)*TS*TS);
dirwts = (float (*)[2]) (buffer + 7*sizeof(float)*TS*TS);
vcd = (float (*)) (buffer + 9*sizeof(float)*TS*TS);
hcd = (float (*)) (buffer + 10*sizeof(float)*TS*TS);
vcdalt = (float (*)) (buffer + 11*sizeof(float)*TS*TS);
hcdalt = (float (*)) (buffer + 12*sizeof(float)*TS*TS);
vcdsq = (float (*)) (buffer + 13*sizeof(float)*TS*TS);
hcdsq = (float (*)) (buffer + 14*sizeof(float)*TS*TS);
cddiffsq = (float (*)) (buffer + 15*sizeof(float)*TS*TS);
hvwt = (float (*)) (buffer + 16*sizeof(float)*TS*TS);
Dgrb = (float (*)[2]) (buffer + 17*sizeof(float)*TS*TS);
delp = (float (*)) (buffer + 19*sizeof(float)*TS*TS);
delm = (float (*)) (buffer + 20*sizeof(float)*TS*TS);
rbint = (float (*)) (buffer + 21*sizeof(float)*TS*TS);
Dgrbh2 = (float (*)) (buffer + 22*sizeof(float)*TS*TS);
Dgrbv2 = (float (*)) (buffer + 23*sizeof(float)*TS*TS);
dgintv = (float (*)) (buffer + 24*sizeof(float)*TS*TS);
dginth = (float (*)) (buffer + 25*sizeof(float)*TS*TS);
Dgrbp1 = (float (*)) (buffer + 26*sizeof(float)*TS*TS);
Dgrbm1 = (float (*)) (buffer + 27*sizeof(float)*TS*TS);
Dgrbpsq1 = (float (*)) (buffer + 28*sizeof(float)*TS*TS);
Dgrbmsq1 = (float (*)) (buffer + 29*sizeof(float)*TS*TS);
cfa = (float (*)) (buffer + 30*sizeof(float)*TS*TS);
pmwt = (float (*)) (buffer + 31*sizeof(float)*TS*TS);
rbp = (float (*)) (buffer + 32*sizeof(float)*TS*TS);
rbm = (float (*)) (buffer + 33*sizeof(float)*TS*TS);
nyquist = (int (*)) (buffer + 34*sizeof(float)*TS*TS);
*/
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -556,6 +485,8 @@ void RawImageSource::amaze_demosaic_RT() {
if (fabs(1-crd)<arthresh) {gdar=cfa[indx]*crd;} else {gdar=gdha;}
if (fabs(1-crl)<arthresh) {glar=cfa[indx]*crl;} else {glar=glha;}
if (fabs(1-crr)<arthresh) {grar=cfa[indx]*crr;} else {grar=grha;}
if (cfa[indx]>pre_mul[1]) {guar=guha; gdar=gdha; glar=glha; grar=grha;}//use HA if highlights are clipped
hwt = dirwts[indx-1][1]/(dirwts[indx-1][1]+dirwts[indx+1][1]);
vwt = dirwts[indx-v1][0]/(dirwts[indx+v1][0]+dirwts[indx-v1][0]);
@@ -620,10 +551,10 @@ void RawImageSource::amaze_demosaic_RT() {
}
}
if (Ginth > 1) hcd[indx]=-ULIM(Ginth,cfa[indx-1],cfa[indx+1])+cfa[indx];//for RT implementation
if (Gintv > 1) vcd[indx]=-ULIM(Gintv,cfa[indx-v1],cfa[indx+v1])+cfa[indx];
//if (Ginth > pre_mul[c]) hcd[indx]=-ULIM(Ginth,cfa[indx-1],cfa[indx+1])+cfa[indx];//for dcraw implementation
//if (Gintv > pre_mul[c]) vcd[indx]=-ULIM(Gintv,cfa[indx-v1],cfa[indx+v1])+cfa[indx];
//if (Ginth > 1) hcd[indx]=-ULIM(Ginth,cfa[indx-1],cfa[indx+1])+cfa[indx];//for RT implementation
//if (Gintv > 1) vcd[indx]=-ULIM(Gintv,cfa[indx-v1],cfa[indx+v1])+cfa[indx];
if (Ginth > pre_mul[c]) hcd[indx]=-ULIM(Ginth,cfa[indx-1],cfa[indx+1])+cfa[indx];//for dcraw implementation
if (Gintv > pre_mul[c]) vcd[indx]=-ULIM(Gintv,cfa[indx-v1],cfa[indx+v1])+cfa[indx];
} else {
@@ -647,10 +578,10 @@ void RawImageSource::amaze_demosaic_RT() {
}
}
if (Ginth > 1) hcd[indx]=ULIM(Ginth,cfa[indx-1],cfa[indx+1])-cfa[indx];//for RT implementation
if (Gintv > 1) vcd[indx]=ULIM(Gintv,cfa[indx-v1],cfa[indx+v1])-cfa[indx];
//if (Ginth > pre_mul[c]) hcd[indx]=ULIM(Ginth,cfa[indx-1],cfa[indx+1])-cfa[indx];//for dcraw implementation
//if (Gintv > pre_mul[c]) vcd[indx]=ULIM(Gintv,cfa[indx-v1],cfa[indx+v1])-cfa[indx];
//if (Ginth > 1) hcd[indx]=ULIM(Ginth,cfa[indx-1],cfa[indx+1])-cfa[indx];//for RT implementation
//if (Gintv > 1) vcd[indx]=ULIM(Gintv,cfa[indx-v1],cfa[indx+v1])-cfa[indx];
if (Ginth > pre_mul[c]) hcd[indx]=ULIM(Ginth,cfa[indx-1],cfa[indx+1])-cfa[indx];//for dcraw implementation
if (Gintv > pre_mul[c]) vcd[indx]=ULIM(Gintv,cfa[indx-v1],cfa[indx+v1])-cfa[indx];
}
vcdsq[indx] = SQR(vcd[indx]);
@@ -918,11 +849,11 @@ void RawImageSource::amaze_demosaic_RT() {
}
}
if (rbp[indx] > 1) rbp[indx]=ULIM(rbp[indx],cfa[indx-p1],cfa[indx+p1]);//for RT implementation
if (rbm[indx] > 1) rbm[indx]=ULIM(rbm[indx],cfa[indx-m1],cfa[indx+m1]);
//c=FC(rr,cc);//for dcraw implementation
//if (rbp[indx] > pre_mul[c]) rbp[indx]=ULIM(rbp[indx],cfa[indx-p1],cfa[indx+p1]);
//if (rbm[indx] > pre_mul[c]) rbm[indx]=ULIM(rbm[indx],cfa[indx-m1],cfa[indx+m1]);
//if (rbp[indx] > 1) rbp[indx]=ULIM(rbp[indx],cfa[indx-p1],cfa[indx+p1]);//for RT implementation
//if (rbm[indx] > 1) rbm[indx]=ULIM(rbm[indx],cfa[indx-m1],cfa[indx+m1]);
c=2-FC(rr,cc);//for dcraw implementation
if (rbp[indx] > pre_mul[c]) rbp[indx]=ULIM(rbp[indx],cfa[indx-p1],cfa[indx+p1]);
if (rbm[indx] > pre_mul[c]) rbm[indx]=ULIM(rbm[indx],cfa[indx-m1],cfa[indx+m1]);
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
//rbint[indx] = 0.5*(cfa[indx] + (rbp*rbvarm+rbm*rbvarp)/(rbvarp+rbvarm));//this is R+B, interpolated
@@ -993,11 +924,11 @@ void RawImageSource::amaze_demosaic_RT() {
}
}
if (Ginth > 1) Ginth=ULIM(Ginth,cfa[indx-1],cfa[indx+1]);//for RT implementation
if (Gintv > 1) Gintv=ULIM(Gintv,cfa[indx-v1],cfa[indx+v1]);
//c=FC(rr,cc);//for dcraw implementation
//if (Ginth > pre_mul[c]) Ginth=ULIM(Ginth,cfa[indx-1],cfa[indx+1]);
//if (Gintv > pre_mul[c]) Gintv=ULIM(Gintv,cfa[indx-v1],cfa[indx+v1]);
//if (Ginth > 1) Ginth=ULIM(Ginth,cfa[indx-1],cfa[indx+1]);//for RT implementation
//if (Gintv > 1) Gintv=ULIM(Gintv,cfa[indx-v1],cfa[indx+v1]);
c=FC(rr,cc);//for dcraw implementation
if (Ginth > pre_mul[c]) Ginth=ULIM(Ginth,cfa[indx-1],cfa[indx+1]);
if (Gintv > pre_mul[c]) Gintv=ULIM(Gintv,cfa[indx-v1],cfa[indx+v1]);
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
rgb[indx][1] = Ginth*(1-hvwt[indx]) + Gintv*hvwt[indx];