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opencv校正图像_opencv图像矫正_weixin_45001971的博客-CSDN博客
我们用相机拍照时,会因为角度问题造成拍歪,会影响图像的识别,这时就需要对图像进行校正,下面介绍校正图像的一种方式,可以用来校正简单的图像,如文字信息、工件等。 校正的过程可以分为以下几步: 1、转灰度图。 2、降噪。 3、Canny边缘检测。 4、膨胀。 5、轮廓检索。 6、从各个轮廓中选取合适的旋转角度并校正图像。 总体的思路是获取图像中各个特征的轮廓旋转角度,从中选取合适的角度让原图像进行逆旋转,达到校准目的。 方法参考:https://blog.csdn.net/DU_YULIN/article/details/120504660 2.1、代码 #include <opencv2/core.hpp> #include <opencv2/imgcodecs.hpp> #include <opencv2/highgui.hpp> #include <opencv2/imgproc.hpp> #include <iostream> using namespace cv; using namespace std; int main() { Mat src =...
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