B

Task/Bitmap-Histogram/C/bitmap-histogram-2.c

@@ -0,0 +1,20 @@
+histogram get_histogram(grayimage im)
+{
+   histogram t;
+   unsigned int x, y;
+
+   if ( im == NULL ) return NULL;
+   t = malloc( sizeof(histogram_t)*256 );
+   memset(t, 0, sizeof(histogram_t)*256 );
+   if (t!=NULL)
+   {
+       for(x=0; x < im->width; x++ )
+       {
+         for(y=0; y < im->height; y++ )
+         {
+            t[ GET_LUM(im, x, y) ]++;
+         }
+       }
+   }
+   return t;
+}