fin correct ch14

[book_gpu.git] / BookGPU / Chapters / chapter3 / code / medianGeneric.cu

diff --git a/BookGPU/Chapters/chapter3/code/medianGeneric.cu b/BookGPU/Chapters/chapter3/code/medianGeneric.cu
old mode 100644 (file)
new mode 100755 (executable)
index bf41842..dff2a92
--- a/BookGPU/Chapters/chapter3/code/medianGeneric.cu
+++ b/BookGPU/Chapters/chapter3/code/medianGeneric.cu
@@ -18,7 +18,7 @@ __global__ void kernel_medianR( short *output,
   for(ic=0; ic<256; ic++)
        {
          cpt += histogram[ ic ] ;
   for(ic=0; ic<256; ic++)
        {
          cpt += histogram[ ic ] ;

-         // selection of 50% percentile 
+         // selection of the median value 

          if ( cpt > ((2*r+1)*(2*r+1))>>1 ) break ; 
        } 
   output[ __mul24(i, j_dim) +j ] =  ic ;  
          if ( cpt > ((2*r+1)*(2*r+1))>>1 ) break ; 
        } 
   output[ __mul24(i, j_dim) +j ] =  ic ;