OpenCV Configuration, Python & C++

1 Linux + Python

# 1 not using cv.imshow()
pip install opencv-python
# 2 using cv.imshow(), but can't read video files
conda remove opencv
conda install -c menpo opencv

2 Win 10 + Python

2.1 安装

版本：Win 10 + Python 3.7 + OpenCV 3.4.3

时间：2018.11.17

  1. 安装Anaconda3，官网下载页面；
  2. 安装OpenCV，UCI下载页面，选择opencv_python-3.4.3-cp37-cp37m-win_amd64.whl下载，使用pip本地安装即可。

2.2 Canny边缘检测demo

import cv2
import matplotlib.pyplot as plt

img = cv2.imread('tower.jpg')
edge = cv2.Canny(img,100,200)

plt.subplot(121)
plt.imshow(img)
plt.title('Original Image')
plt.xticks([]), plt.yticks([])
plt.subplot(122)
plt.imshow(edge)
plt.title('Edge Image')
plt.xticks([]), plt.yticks([])
plt.show()

3 Win 10 + C++

3.1 安装

版本：Win 10 + VS 2013 + OpenCV 2.4.13

时间：2018.11.17

OpenCV 发布页面，OpenCV releases，选择2.4.13- winpack下载，双击解压即可。

3.2 配置项目

注意，我的 opencv-2.4.13.exe 解压目录为 D:\opencv，请根据你的目录修改路径。

  1. 添加环境变量

    path中添加 D:\opencv\build\x86\vc12\bin;

  2. 配置项目目录

    选择 Project - Properties - VC++ Directories

    Include Directories 中添加 D:\opencv\build\include;

    Library Directories 中添加 D:\opencv\build\x86\vc12\lib;

  3. 配置链接

    选择 Project - Properties - Linker - Input

    Additional Dependencies 中添加下列内容。（默认是debug模式，）

    opencv_ml2413d.lib
opencv_calib3d2413d.lib
opencv_contrib2413d.lib
opencv_core2413d.lib
opencv_features2d2413d.lib
opencv_flann2413d.lib
opencv_gpu2413d.lib
opencv_highgui2413d.lib
opencv_imgproc2413d.lib
opencv_legacy2413d.lib
opencv_objdetect2413d.lib
opencv_ts2413d.lib
opencv_video2413d.lib
opencv_nonfree2413d.lib
opencv_ocl2413d.lib
opencv_photo2413d.lib
opencv_stitching2413d.lib
opencv_superres2413d.lib
opencv_videostab2413d.lib

tips

3.3 Canny边缘检测demo

#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
using namespace cv;

int main()
{
	Mat src, edge;
	src = imread("1.jpg");
    // Canny edge
    Canny(src, edge, 100, 200);
	imshow("Canny edge", edge);
	waitKey(0);
	return 0;
}