OpenCV "findContours“方法错误
OpenCV "findContours“方法错误
提问于 2014-01-16 22:02:17
我对OpenCV 2.4.8的"findContours“方法有异议。具体而言，以下错误：
OpenCV Error: Unsupported format or combination of formats ([Start]FindContours support only 8uC1 and 32sC1 images) in cvStartFindContours, file ..\..\..\..\opencv\modules\imgproc\src\contours.cpp, line 196从消息的内容来看，我似乎使用了不适当的图像格式，但是我很确定我的代码指定了一个8uC1 (8位1通道)矩阵。
/* Threshold source image (src1 which is a grayscale image) */
Mat threshImg(src1.rows, src1.cols, CV_8UC1);
threshold(src1, threshImg, thresh, 255, CV_THRESH_BINARY);
/* Get contours */
Mat threshCopy = threshImg; // Copying image because findContours method edits image data
std::vector<std::vector<Point>> contours;
findContours(threshCopy, contours, CV_RETR_EXTERNAL, CV_CHAIN_APPROX_SIMPLE, Point(0,0));我使用cl和链接在命令行上编译代码，如下所示：
$: cl NameOfCode.cpp -W2 -EHsc -c -I OpenCVIncludeDirectory
$: link NameOfCode.obj -LIBPATH:OpenCVLibraryDirectory opencv_core248.lib opencv_highgui248.lib opencv_imgproc248.lib为了启用cl和link的使用，我从Visual 2010运行vsvars32.bat：
$: "C:\Program Files\Microsoft Visual Studio 10.0\Common7\Tools\vsvars32.bat"Stack Overflow用户
回答已采纳
发布于 2014-01-20 15:20:19
看起来这个问题最终与Visual有关。安装SP1 http://www.microsoft.com/en-us/download/details.aspx?id=23691并按照berak和vasan的建议对代码进行调整之后。最后代码如下：
/* NOTE: Using namespace cv & std */
/* Get input image */
Mat origImg = imread("C:\\PathToImage\\Image.png", CV_LOAD_IMAGE_GRAYSCALE);
/* Threshold input image */
Mat threshImg;
threshold(origImg, threshImg, 150, 255.0, THRESH_BINARY);
/* Get contours from threshold image */
Mat copyImage = threshImg.clone();
vector<vector<Point>> contours;
findContours(copyImage, contours, CV_RETR_EXTERNAL, CV_CHAIN_APPROX_SIMPLE, Point(0,0));页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/21173829
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