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convert cuda gauss to correct pixel convention #22

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convert cuda gauss to correct pixel convention #22

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2 changes: 1 addition & 1 deletion MATLAB/examples/Example_LocalizeData.m
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@
[SMD] = LD.genLocalizations();

%Set Verbose to give color overlay output
LD.Verbose=2
LD.Verbose=3
[SMD] = LD.genLocalizations();


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6 changes: 3 additions & 3 deletions MATLAB/ptx/smi_cuda_gaussBlobROIStack.cu
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Expand Up @@ -33,7 +33,7 @@ __global__ void kernel_guassiansampleblobs( const int sz, const int Nframes, con
for(jj=0;jj<sz;jj++) {
pixely=jj; // sample at pixel center
// generate model for pixel ii jj
d_im[Idx+Idxii+jj] = Bg + (A* exp( -1/(2*(1-pow(covariance,2))) * ( pow(x-pixelx-0.5,2)/pow(xsigma,2) + pow(y-pixely-0.5,2)/pow(ysigma,2) - 2*covariance*(x-pixelx-0.5)*(y-pixely-0.5)/(xsigma*ysigma) ) ) );
d_im[Idx+Idxii+jj] = Bg + (A* exp( -1/(2*(1-pow(covariance,2))) * ( pow(x-pixelx,2)/pow(xsigma,2) + pow(y-pixely,2)/pow(ysigma,2) - 2*covariance*(x-pixelx)*(y-pixely)/(xsigma*ysigma) ) ) );
}
}
return;
Expand Down Expand Up @@ -70,11 +70,11 @@ __global__ void kernel_guassianintegrateblobs( const int sz, const int Nframes,
for (ii=0;ii<sz;ii++) {
pixelx=ii;
Idxii = ii*sz;
B = erf((x-pixelx)*SX)-erf((x-pixelx-1)*SX);
B = erf((x-pixelx+0.5f)*SX)-erf((x-pixelx-0.5f)*SX);
for(jj=0;jj<sz;jj++) {
pixely=jj;
// generate model for pixel ii jj
d_im[Idx+Idxii+jj] = Bg + (A*B*(erf((y-pixely)*SY)-erf((y-pixely-1)*SY)));
d_im[Idx+Idxii+jj] = Bg + (A*B*(erf((y-pixely+0.5f)*SY)-erf((y-pixely-0.5f)*SY)));
}
}
return;
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