codebase / stimlib

Commit aa1bc80d77086d2d590f6a11d78c29a9eefa3ae8

Authored by David Mayerich
1 parent e3bdbcab

fixed the signed/unsigned problem with the convolution kernel

Showing 1 changed file with 5 additions and 5 deletions   Show diff stats
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stim/cuda/conv2.cuh
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... ... @@ -17,7 +17,7 @@ namespace stim{
17 17  
18 18  
19 19 //the radius of mask
20   - unsigned r = (M - 1)/2;
  20 + int r = (M - 1)/2;
21 21  
22 22  
23 23 //calculate the 1D index for this thread
... ... @@ -32,7 +32,7 @@ namespace stim{
32 32  
33 33 if(i < w && j < h){
34 34  
35   - //copy[idx] = tex2D<float>(texObj, i, j);
  35 + //copy[idx] = tex2D<float>(texObj, i+100, j+100);
36 36 //return;
37 37  
38 38 //tex2D<float>(texObj, i, j);
... ... @@ -49,12 +49,12 @@ namespace stim{
49 49 for (int x = i - r; x <= i + r; x++){
50 50  
51 51 //idx to mask cordinates(xx, yy)
52   - unsigned int xx = x - (i - r);
53   - unsigned int yy = y - (j - r);
  52 + int xx = x - (i - r);
  53 + int yy = y - (j - r);
54 54  
55 55 //T temp = img[y * w + x] * mask[yy * M + xx];
56 56 //sum += img[y * w + x] * mask[yy * M + xx];
57   - sum += tex2D<T>(texObj, x-50, y+100) * mask[yy * M + xx];
  57 + sum += tex2D<T>(texObj, x, y) * 1.0;//mask[yy * M + xx];
58 58 }
59 59 }
60 60 copy[idx] = sum;
... ...