diff --git a/hgdriver/hgdev/hg_scanner.cpp b/hgdriver/hgdev/hg_scanner.cpp
index 74691c5..8b29916 100644
--- a/hgdriver/hgdev/hg_scanner.cpp
+++ b/hgdriver/hgdev/hg_scanner.cpp
@@ -5284,6 +5284,12 @@ bool hg_scanner::image_process(std::shared_ptr<tiny_buffer>& buffer, uint32_t id
 			(this->*dump_img_)(ImagePrc_pHandle_, "auto_crop");
 		}
 
+		if (pid_ != 0x239 && pid_ != 0x439 && image_prc_param_.bits.color_mode == COLOR_MODE_24_BITS)
+		{
+			ret = hg_imgproc::dispersion(ImagePrc_pHandle_);
+			(this->*dump_img_)(ImagePrc_pHandle_, "dispersion");
+		}
+
 		if (is_quality_ == IMG_SPEED && resolution_ >= 300)//239
 		{
  			VLOG_MINI_1(LOG_LEVEL_DEBUG_INFO, "set resolution_ is :%d\n", resolution_)
diff --git a/hgdriver/hgdev/image_process.cpp b/hgdriver/hgdev/image_process.cpp
index 6d90b82..f0061bf 100644
--- a/hgdriver/hgdev/image_process.cpp
+++ b/hgdriver/hgdev/image_process.cpp
@@ -854,6 +854,26 @@ namespace hg_imgproc
 			}
 			return SCANNER_ERR_OK;
 		}
+		int dispersion()
+		{
+			int ret = SCANNER_ERR_OK;
+			std::vector<cv::Mat>	mats(mats_);
+			mats_.clear();
+
+			CImageApplyDispersion disp;
+
+			for (int i = 0; i < mats.size(); ++i)
+			{
+				disp.apply(mats[i], 0);
+				mats_.push_back(mats[i]);
+			}
+
+			if (mats_.empty())
+			{
+				return SCANNER_ERR_NO_DATA;
+			}
+			return SCANNER_ERR_OK;
+		}
 		int fillhole(float top,float low,float l,float r)
 		{
 			int ret = SCANNER_ERR_OK;
@@ -1989,6 +2009,10 @@ namespace hg_imgproc
 	{
 		return ((imgproc*)himg)->auto_crop(dpi);
 	}
+	int dispersion(HIMGPRC himg)
+	{
+		return ((imgproc*)himg)->dispersion();
+	}
 	int fillhole(HIMGPRC himg, float top, float low, float l, float r)
 	{
 		return ((imgproc*)himg)->fillhole(top, low, l,r);
diff --git a/hgdriver/hgdev/image_process.h b/hgdriver/hgdev/image_process.h
index e1320fc..cd9791d 100644
--- a/hgdriver/hgdev/image_process.h
+++ b/hgdriver/hgdev/image_process.h
@@ -186,6 +186,7 @@ namespace hg_imgproc
 	int multi_out_red(HIMGPRC himg);
 	int auto_matic_color(HIMGPRC himg,int color_type);
 	int auto_crop(HIMGPRC himg, float dpi);
+	int dispersion(HIMGPRC himg);
 	int fillhole(HIMGPRC himg, float top, float low, float r, float l);
 	int resolution_change(HIMGPRC himg,float dpi3288);
 	int croprect(HIMGPRC himg);