From 5eb5aa60e184dc87fc40fff273f75c064d0e0db0 Mon Sep 17 00:00:00 2001
From: gb <741021719@qq.com>
Date: Thu, 29 Sep 2022 09:34:39 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E7=81=B0=E5=BA=A6=E8=BD=AC?=
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---
 hgdriver/hgdev/image_process.cpp | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/hgdriver/hgdev/image_process.cpp b/hgdriver/hgdev/image_process.cpp
index 0e791bd..091471b 100644
--- a/hgdriver/hgdev/image_process.cpp
+++ b/hgdriver/hgdev/image_process.cpp
@@ -971,19 +971,29 @@ namespace hg_imgproc
 			memset(tableData, reverse ? 0 : 1, 256);
 			memset(tableData, reverse ? 1 : 0, threshold);
 
-			cv::Mat dst = cv::Mat::zeros(rows, cols, (int)CV_8UC1);
+			int* index_dst = new int[image.cols];
+			int* index_carry = new int[image.cols];
+
+			for (size_t i = 0; i < image.cols; i++)
+			{
+				index_dst[i] = i / 8;
+				index_carry[i] = 7 - (i % 8);
+			}
+
+			cv::Mat dst = cv::Mat::zeros(rows, cols, CV_8UC1);
 			uchar* ptr_src, * ptr_dst;
 			for (size_t y = 0; y < rows; y++)
 			{
 				ptr_dst = dst.ptr<uchar>(y);
 				ptr_src = const_cast<uchar*>(image.ptr<uchar>(y));
 				for (size_t x = 0; x < image.cols; x++)
-					ptr_dst[x / 8] += tableData[ptr_src[x]] << (x % 8);
+					ptr_dst[index_dst[x]] += tableData[ptr_src[x]] << index_carry[x];
 			}
 
+			delete[] index_dst;
+			delete[] index_carry;
 			return dst;
 		}
-
 	// final
 	public:
 		int final(void)
@@ -1540,9 +1550,9 @@ namespace hg_imgproc
 		cv::Mat bw = imgproc::convert_8bit_2_1bit(m, threshold, reverse, align);
 		//std::string ret("");
 
-		dst = bw.ptr();
-		for (int i = 0; i < bw.total(); ++i)
-			dst[i] = reverse_bit(dst[i]);
+		//dst = bw.ptr();
+		//for (int i = 0; i < bw.total(); ++i)
+		//	dst[i] = reverse_bit(dst[i]);
 
 		return std::string((char*)bw.ptr(), bw.total());
 	}