diff --git a/hgdriver/ImageProcess/ImageApplyAutoCrop.cpp b/hgdriver/ImageProcess/ImageApplyAutoCrop.cpp
index 907dfec..46f959b 100644
--- a/hgdriver/ImageProcess/ImageApplyAutoCrop.cpp
+++ b/hgdriver/ImageProcess/ImageApplyAutoCrop.cpp
@@ -204,12 +204,13 @@ void autoCrop_desaskew_fillBlank(const cv::Mat& src, cv::Mat& dst, bool isAutoCr
 
 	cv::RotatedRect rect = hg::getBoundingRect(maxContour);
 
+#ifndef x86_64
 	if (dispersion)
 	{
 		cv::Mat mat_dispersion = src(cv::boundingRect(maxContour));
 		dispersion_apply.apply(mat_dispersion, 0);
 	}
-
+#endif
 	cv::Scalar blankColor;
 	if (isFillBlank)
 		if (isColorBlank)