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Fix Colored pixel artifacts when using Edges issue1799

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jdc
2013-03-26 06:32:36 +01:00
parent 0e194b1597
commit 64297ff021
1 changed files with 6 additions and 5 deletions
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11
rtengine/ipsharpen.cc
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@@ -314,7 +314,8 @@ void ImProcFunctions::MLsharpen (LabImage* lab) {
float templab; float templab;
int iii,kkk; int iii,kkk;
width2 = 2*width; width2 = 2*width;
const float epsil=0.001f;//prevent divide by zero const float epsil=0.01f;//prevent divide by zero
const float eps2=0.001f;//prevent divide by zero
float amount; float amount;
amount = params->sharpenEdge.amount / 100.0f; amount = params->sharpenEdge.amount / 100.0f;
if (amount < 0.00001f) if (amount < 0.00001f)
@@ -353,12 +354,12 @@ void ImProcFunctions::MLsharpen (LabImage* lab) {
for(j=2; j<height-2; j++) for(j=2; j<height-2; j++)
for(i=2,offset=j*width+i; i<width-2; i++,offset++) { for(i=2,offset=j*width+i; i<width-2; i++,offset++) {
// weight functions // weight functions
wH = fabs(L[offset+1]-L[offset-1]); wH = eps2 + fabs(L[offset+1]-L[offset-1]);
wV = fabs(L[offset+width]-L[offset-width]); wV = eps2 + fabs(L[offset+width]-L[offset-width]);
s = 1.0f+fabs(wH-wV)/2.0f; s = 1.0f+fabs(wH-wV)/2.0f;
wD1 = fabs(L[offset+width+1]-L[offset-width-1])/s; wD1 = eps2 + fabs(L[offset+width+1]-L[offset-width-1])/s;
wD2 = fabs(L[offset+width-1]-L[offset-width+1])/s; wD2 = eps2 + fabs(L[offset+width-1]-L[offset-width+1])/s;
s = wD1; s = wD1;
wD1 /= wD2; wD1 /= wD2;
wD2 /= wD1; wD2 /= wD1;