我必须用参数跟踪矩阵:-
cv::Mat fFuncv--> size of fFunc [924440 x 10] and depth 5
cv::Mat Ones -->size of Ones [924440 x 1] and depth 5
cv::Mat cFuncv-->size of cFunc [1 x 10] and depth 5
当我这么做时:-
d = fFunc - Ones * cFunc;
我收到以下错误消息
OpenCV错误:
断言失败( D:\opencv\sources\modules\core\src\matmul.cpp,==
回溯(最近一次调用):文件“/Users/travis/build/skvark/opencv-python/opencv/modules/imgproc/src/color.cpp:182:”,第21行,灰色= cv2.cvtColor(img,cv2.COLOR_BGR2GRAY) cv2.error: OpenCV(4.2.0) cv2.cvt错误:(-215:断言失败) !_src.empty() in function 'cvtColor‘
我有,我想选择其中的所有映射,包括使用python的名称。
我试过用OpenCv
from cv2 import cv2
import numpy as np
import os
for image in os.listdir('assets'):
print(image)
img_rgb = cv2.imread(image)
template = cv2.imread('assets/template/template.png')
w, h = template.shape[:-1]
res = cv2.matchT
在Rasberry Pi 4上,我将使用usb摄像头进行图像处理。为此,我将OpenCv库添加到了Python中。我用下面的代码做了最简单的视频处理。 import numpy as np
import cv2
cap = cv2.VideoCapture(0)
while(True):
# Capture frame-by-frame
ret, frame = cap.read()
# Our operations on the frame come here
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
我试着做一些普通的背景,但有些错误,因为它会导致应用程序崩溃
cv::Mat firstFrame;
cv::Mat averageBackground;
int frameCounter=0;
// this function is called for every frame of the camera
- (void)processImage:(Mat&)image; {
cv::Mat diffFrame;
cv::Mat currentFrame;
cv::Mat colourCopy;
cvtColor(image, currentFr
正如许多人以前所做的那样,我有一个断言错误问题,并且不能自己解决它。下面是我的代码片段:
void tuneParameters(cv::Ptr<cv::ml::KNearest>& classifier, cv::Mat& trainDataMat, cv::Mat& trainLabels, int k[], cv::Mat classes){
//Split Data in 10 random folds to do cross validation
int n = trainDataMat.rows;
std::vector <
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include <iostream>
#include <stdio.h>
using namespace std;
using namespace cv;
/// Global Variables
Mat img; Mat templ; Mat result;
char* image_window = "Source Image";
char* result_w
我正在使用OpenCV的SURF功能检测来比较两个图像。当我选择两个相同的图像(有时是相同的图像)时,我会得到如下结果:
OpenCV Error: Assertion failed (CV_IS_MAT(imagePoints) && CV_IS_MAT(objectPoints)) in cvFindHomography, file /home/OpenCV/OpenCV-2.4.3/modules/calib3d/src/fundam.cpp, line 232
Qt has caught an exception thrown from an event handl
我需要你的帮助。我试图使用OpenCV的seamlessClone()函数实现两幅图像的简单混合。我得到一个例外,它说:
错误:(-215) CV_MAT_TYPE(mtype) == m.type()
下面是它的源代码:
public class SeamlessClone extends AppCompatActivity {
public static final String TAG = "Seamless Clone demo";
static {
if (!OpenCVLoader.initDebug()) {
我试图用我能想到的最简单的代码来匹配两个SIFT描述符,但是OpenCV 3总是抛出异常。
这是我的密码:
cv::Mat img1 = imread(...); // Shortened for the example
cv::Mat img2 = imread(...); // Shortened for the example
std::vector<KeyPoint> keypoints1, keypoints2;
Ptr<SIFT> ptrSift = SIFT::create(200, 3, 0.07, 15);
Mat descriptors1, des