I am using OpenCV 4.10.0 for my project to run YOLOv9, as it is the only version with which I have been able to execute YOLOv9 correctly. The problem arises when I use cv::cvtColor in conjunction with YOLOv9 and other OpenCV functions. Specifically, if I uncomment the line: cv::c...
问题描述如下: cv2.error: OpenCV(4.1.2) C:\projects\opencv-python\opencv\modules\imgproc\src\color.cpp:182: err cv2错误:OpenCV(4.1.2) C:\projects\opencv-python\opencv\modules\imgproc\src\color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function ‘cv::cvtColor’ _src.em...
File "C:/Users/赵立敏/PycharmProjects/OpenCV/4.图像特征与目标检测/4.5人脸检测算法.py", line 31, in <module> img_gray = cv2.cvtColor(img, cv2.COLOR_RGB2GRAY) cv2.error: OpenCV(3.4.2) c:\projects\opencv-python\opencv\modules\imgproc\src\color.hpp:253: error: (-215:Assertion failed) V...
参考:https://docs.opencv.org/master/d3/d63/classcv_1_1Mat.html#a92a3e9e5911a2eb0cf0950a0a9670c76 18. 转换颜色 ◆cvtColor()voidcv::cvtColor( InputArray src, OutputArray dst,intcode,intdstCn =0) cvtColor(roiFrame, hsvFrame, COLOR_BGR2HSV) 参考:https://docs.opencv.org/3.4/d8/d01/g...
OpenCV error: (-215:Assertion failed) !_src.empty() in function ‘cv::cvtColor‘,我解决这个问题的方法是:文件路径是对的,图像的格式是png,而代码中要求的格式是jpg,将png转换为jpg就能解决了。
_src.empty() in function 'cv::cvtColor' 是由OpenCV 库抛出的,它通常表示在尝试对一个空图像(即未成功加载的图像)执行颜色空间转换时出现了问题。 要解决这个问题,我们可以按照以下步骤进行: 确认错误信息的含义: 这个错误表明 cv::cvtColor 函数试图在一个空的图像上执行操作,即 src 图像为空(_src.empty...
grey=cv2.cvtColor(frame,cv2.COLOR_BGR2GRAY)#人脸检测,1.2和3分别为图片缩放比例和需要检测的有效点数,32*32为最小检测的图像像素 faceRects=classfier.detectMultiScale(grey,scaleFactor=1.2,minNeighbors=3,minSize=(32,32))iflen(faceRects)>0:#大于0则检测到人脸forfaceRectinfaceRects:#框出每一张人脸...
cv::cvtColor(mat,mat,cv::COLOR_BGR2RGB); QImageimg=QImage(mat.data,mat.cols,mat.rows,mat.step,QImage::Format_RGB888); intw=img.width; inth=img.height; if(w>800||h>800){ doublerate=800.0/std::max(w,h); intnw=static_cast<int>(rate*w); ...
求解,未定义的标识符..求解,我是从中文论坛老站里的例程里拷的代码,Canny边缘检测的那个代码,我opencv的版本是2.4.9,vs的版本是2013头文件改了一下应该没问题,但是显示有好多未定义的标识符,这是为什么呢?,
{cv::Matimg=cv::imread("猪头照.png");// 读取图像cv::Matedge,grayImg;cv::cvtColor(img,...