如何将cvCvtColor转换为cvtColor调用在opencv（BGR到HSV）？ [英] How to convert a cvCvtColor to cvtColor call in opencv (BGR to HSV)?

问题描述

我使用的是旧版本的opencv的C ++代码，用于将BGR转换为HSV -

I am using a C++ code with old version of opencv that uses this to convert BGR to HSV -

cvCvtColor(frame, imgHSV, CV_BGR2HSV);
cvReleaseImage(&imgHSV);

其中frame和imgHSV是IplImage * objects

where frame and imgHSV are IplImage* objects

较新版本的opencv没有这个方法，我发现在imgproc中的cvtColor（）也是一样。但是这个方法对参数使用cv :: InputArray和cv :: OutputAray格式，而不是IplImage *。如何转换并将IplImage *格式转换回这些新格式？

The newer versions of opencv don't have this method and I found cvtColor() in imgproc that does the same. But this method uses cv::InputArray and cv::OutputAray formats for parameters instead of IplImage* . How do I convert and convert back the IplImage* formats to these new formats? Any other way to convert from BGR to HSV for IplImage* that I don't know of?

推荐答案

使用cv :: Mat而不是IplImage这里，一般来说，喜欢c ++ api到已过时的c-api：

use cv::Mat instead of IplImage here, in general, prefer the c++ api to the deprecated c-api:

cv::Mat img = cv::imread("my.png");

cv::Mat hsv;
cv::cvtColor(frame, hsv, CV_BGR2HSV);
cv::imshow("hsv",hsv);
cv::waitKey();

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