pkg-config

makelove · makelove · commit a4d08d3abb54 · 2017-11-28T20:25:12.000+08:00
diff --git a/ch02-安装OpenCV/安装OpenCV后验证.md b/ch02-安装OpenCV/安装OpenCV后验证.md
@@ -1,5 +1,11 @@
 ##安装OpenCV后验证
 
+- pkg-config
+```bash
+pkg-config --modversion opencv
+3.3.0
+```
+
 ```python
 import cv2
 print(cv2.getBuildInformation())
diff --git a/my07-GPU-CUDA/使用CUDA进行GPU加速.md b/my07-GPU-CUDA/使用CUDA进行GPU加速.md
@@ -0,0 +1,44 @@
+# 使用CUDA进行GPU加速
+
+- 参考
+    - [Compiling OpenCV with CUDA support](https://www.pyimagesearch.com/2016/07/11/compiling-opencv-with-cuda-support/)
+    - [CUDA文档](https://opencv.org/platforms/cuda.html)
+    
+- 验证安装
+```python
+import cv2
+print(cv2.getBuildInformation())
+#Use Cuda:                    YES (ver 8.0)
+#表示成功
+```    
+- 代码C++
+```cython
+#include <iostream>
+#include "opencv2/opencv.hpp"
+#include "opencv2/gpu/gpu.hpp"
+
+int main (int argc, char* argv[])
+{
+    try
+    {
+        cv::Mat src_host = cv::imread("file.png", CV_LOAD_IMAGE_GRAYSCALE);
+        cv::gpu::GpuMat dst, src;
+        src.upload(src_host);
+
+        cv::gpu::threshold(src, dst, 128.0, 255.0, CV_THRESH_BINARY);
+
+        cv::Mat result_host;
+        dst.download(result_host);
+
+        cv::imshow("Result", result_host);
+        cv::waitKey();
+    }
+    catch(const cv::Exception& ex)
+    {
+        std::cout << "Error: " << ex.what() << std::endl;
+    }
+    return 0;
+}
+```
+- 编译
+    - 
