imgproc: fix bilateral filter SIMD 32f optimization

alalek · alalek · commit cc9ab7e58217 · 2017-10-27T14:20:13.000+03:00
diff --git a/modules/imgproc/src/smooth.cpp b/modules/imgproc/src/smooth.cpp
@@ -3640,6 +3640,8 @@ class BilateralFilter_32f_Invoker :
 
                             v_int32x4 _idx = v_round(_alpha);
                             v_store((int*)idxBuf, _idx);
+                            _alpha -= v_cvt_f32(_idx);
+
                             v_float32x4 _explut = v_float32x4(expLUT[idxBuf[0]],
                                 expLUT[idxBuf[1]],
                                 expLUT[idxBuf[2]],
