diff --git a/app/scanner/mainwindow.cpp b/app/scanner/mainwindow.cpp
index 7bfcdc7d..6b93f779 100644
--- a/app/scanner/mainwindow.cpp
+++ b/app/scanner/mainwindow.cpp
@@ -2006,9 +2006,17 @@ int MainWindow::sane_ex_callback(SANE_Handle hdev, int code, void *data, unsigne
 
             HGUInt imgType = 0;
             if (sane_img->header.format == SANE_FRAME_GRAY)
-                imgType = HGBASE_IMGTYPE_GRAY;
-            else if (sane_img->header.format == SANE_FRAME_RGB)
+            {
+                if (1 == sane_img->header.depth)
+                    imgType = HGBASE_IMGTYPE_BINARY;
+                else if (8 == sane_img->header.depth)
+                    imgType = HGBASE_IMGTYPE_GRAY;
+            }
+            else if (sane_img->header.format == SANE_FRAME_RGB
+                && 24 == sane_img->header.depth)
+            {
                 imgType = HGBASE_IMGTYPE_RGB;
+            }
 
             HGByte *imgData = sane_img->data;
             HGImageInfo imgInfo = {(HGUInt)sane_img->header.pixels_per_line, (HGUInt)sane_img->header.lines,
diff --git a/modules/imgproc/HGImgProc.cpp b/modules/imgproc/HGImgProc.cpp
index 7b7a4b7c..56ebc1c0 100644
--- a/modules/imgproc/HGImgProc.cpp
+++ b/modules/imgproc/HGImgProc.cpp
@@ -126,9 +126,6 @@ HGResult HGAPI HGImgProc_ImageAdjustColors(HGImage image, HGImage destImage,
 	else if (HGBASE_IMGTYPE_BGRA == type || HGBASE_IMGTYPE_RGBA == type)
 		channels = 4;
 
-	uint8_t* p = data + roi.top * imgInfo.widthStep + roi.left * channels;
-	cv::Mat img(roiHeight, roiWidth, CV_8UC(channels), p, imgInfo.widthStep);
-
 	if (NULL == destImage || image == destImage)
 	{
 		if (HGBASE_IMGTYPE_BINARY == type)
@@ -149,6 +146,9 @@ HGResult HGAPI HGImgProc_ImageAdjustColors(HGImage image, HGImage destImage,
 			return ret;
 		}
 
+		uint8_t* p = data + roi.top * imgInfo.widthStep + roi.left * channels;
+		cv::Mat img(roiHeight, roiWidth, CV_8UC(channels), p, imgInfo.widthStep);
+
 		CImageApplyAdjustColors imgApply(brightness, contrast, gamma);
 		imgApply.apply(img, 0);
 	}