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This commit is contained in:
jdc
2013-03-18 07:17:01 +01:00
parent 95de1e1b3b
commit d881987484
1 changed files with 14 additions and 13 deletions
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27
rtengine/ipsharpen.cc
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@@ -314,6 +314,7 @@ void ImProcFunctions::MLsharpen (LabImage* lab) {
float templab;
int iii,kkk;
width2 = 2*width;
const float epsil=0.001f;//prevent divide by zero
float amount;
amount = params->sharpenEdge.amount / 100.0f;
if (amount < 0.00001f)
@@ -355,7 +356,7 @@ void ImProcFunctions::MLsharpen (LabImage* lab) {
wH = fabs(L[offset+1]-L[offset-1]);
wV = fabs(L[offset+width]-L[offset-width]);
s = 1.0+fabs(wH-wV)/2.0;
s = 1.0f+fabs(wH-wV)/2.0f;
wD1 = fabs(L[offset+width+1]-L[offset-width-1])/s;
wD2 = fabs(L[offset+width-1]-L[offset-width+1])/s;
s = wD1;
@@ -372,8 +373,8 @@ void ImProcFunctions::MLsharpen (LabImage* lab) {
// contrast detection
contrast = sqrt(fabs(L[offset+1]-L[offset-1])*fabs(L[offset+1]-L[offset-1])+fabs(L[offset+width]-L[offset-width])*fabs(L[offset+width]-L[offset-width]))/chmax[c];
if (contrast>1.0)
contrast=1.0;
if (contrast>1.0f)
contrast=1.0f;
// new possible values
if (((L[offset]<L[offset-1])&&(L[offset]>L[offset+1])) || ((L[offset]>L[offset-1])&&(L[offset]<L[offset+1]))){
@@ -387,9 +388,9 @@ void ImProcFunctions::MLsharpen (LabImage* lab) {
f3 = fabs(L[offset+1]-L[offset-width])*fabs(L[offset+1]-L[offset+width]);
f4 = sqrt(fabs(L[offset+1]-L[offset-width2])*fabs(L[offset+1]-L[offset+width2]));
difR = f1*f2*f2*f3*f3*f4;
if ((difR!=0)&&(difL!=0)){
if ((difR>epsil)&&(difL>epsil)){
lumH = (L[offset-1]*difR+L[offset+1]*difL)/(difL+difR);
lumH = v*(1-contrast)+lumH*contrast;
lumH = v*(1.f-contrast)+lumH*contrast;
}
}
@@ -404,9 +405,9 @@ void ImProcFunctions::MLsharpen (LabImage* lab) {
f3 = fabs(L[offset+width]-L[offset-1])*fabs(L[offset+width]-L[offset+1]);
f4 = sqrt(fabs(L[offset+width]-L[offset-2])*fabs(L[offset+width]-L[offset+2]));
difB = f1*f2*f2*f3*f3*f4;
if ((difB!=0)&&(difT!=0)){
if ((difB>epsil)&&(difT>epsil)){
lumV = (L[offset-width]*difB+L[offset+width]*difT)/(difT+difB);
lumV = v*(1-contrast)+lumV*contrast;
lumV = v*(1.f-contrast)+lumV*contrast;
}
}
@@ -421,9 +422,9 @@ void ImProcFunctions::MLsharpen (LabImage* lab) {
f3 = fabs(L[offset+1+width]-L[offset-width+1])*fabs(L[offset+1+width]-L[offset+width-1]);
f4 = sqrt(fabs(L[offset+1+width]-L[offset-width2+2])*fabs(L[offset+1+width]-L[offset+width2-2]));
difRB = f1*f2*f2*f3*f3*f4;
if ((difLT!=0)&&(difRB!=0)) {
if ((difLT>epsil)&&(difRB>epsil)) {
lumD1 = (L[offset-1-width]*difRB+L[offset+1+width]*difLT)/(difLT+difRB);
lumD1 = v*(1-contrast)+lumD1*contrast;
lumD1 = v*(1.f-contrast)+lumD1*contrast;
}
}
@@ -438,9 +439,9 @@ void ImProcFunctions::MLsharpen (LabImage* lab) {
f3 = fabs(L[offset+1-width]-L[offset+width+1])*fabs(L[offset+1-width]-L[offset-width-1]);
f4 = sqrt(fabs(L[offset+1-width]-L[offset+width2+2])*fabs(L[offset+1-width]-L[offset-width2-2]));
difRT = f1*f2*f2*f3*f3*f4;
if ((difLB!=0)&&(difRT!=0)) {
if ((difLB>epsil)&&(difRT>epsil)) {
lumD2 = (L[offset+1-width]*difLB+L[offset-1+width]*difRT)/(difLB+difRT);
lumD2 = v*(1-contrast)+lumD2*contrast;
lumD2 = v*(1.f-contrast)+lumD2*contrast;
}
}
@@ -455,8 +456,8 @@ void ImProcFunctions::MLsharpen (LabImage* lab) {
iii = offset/width;
kkk = offset-iii*width;
float provL=lab->L[iii][kkk]/327.68f;
if(c==0){ if(provL < 92.f) templab = v*(1-s)+(lumH*wH+lumV*wV+lumD1*wD1+lumD2*wD2)/(wH+wV+wD1+wD2)*s; else templab=provL;}
else templab = v*(1-s)+(lumH*wH+lumV*wV+lumD1*wD1+lumD2*wD2)/(wH+wV+wD1+wD2)*s;
if(c==0){ if(provL < 92.f) templab = v*(1.f-s)+(lumH*wH+lumV*wV+lumD1*wD1+lumD2*wD2)/(wH+wV+wD1+wD2)*s; else templab=provL;}
else templab = v*(1.f-s)+(lumH*wH+lumV*wV+lumD1*wD1+lumD2*wD2)/(wH+wV+wD1+wD2)*s;
if (c==0) lab->L[iii][kkk] = fabs(327.68f*templab); // fabs because lab->L always >0
else if (c==1) lab->a[iii][kkk] = 327.68f*templab ;
else if (c==2) lab->b[iii][kkk] = 327.68f*templab ;