jacke121的专栏

Rebuild the library with Windows, GTK+ 2.x or Cocoa support

cv2.error: OpenCV(4.9.0) /io/opencv/modules/imgcodecs/src/loadsave.cpp:696: error: (-2:Unspecified e

模拟左拐右拐

图片检查 python脚本

opencv安装笔记 各种平台

opencv android 使用笔记

抗锯齿 opencv

raise NotImplementedError(f"Loading a dataset cached in a {type(self._fs).__name__} is not supported.")

图像随机裁剪三角形

二值化提取掩码矩形框 python c++

opencv操作raw文件

opencv 绿幕抠图 python版 c++版

Android ndk 编译报错：error: undefined reference to 'cv::imread(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, int)' #include <opencv2/core.hpp> #include <openc

cv2.dnn读取模型报错D:\ProgramData\Miniconda3\python.exe D:/project/detect/face/yolov5-face-landmarks-opencv/main_new.py[ERROR:0] global C:\Users\appveyor\AppData\Local\Temp\1\pip-req-build-oduouqig\opencv\modules\dnn\src\onnx\onnx_importer.cpp (1878) cv::..

/dependencies/OpenCV348/lib/libopencv_core.so: file not recognized: File format not recognized解决方法：libopencv_core.so本来是个软链接，指向libopencv_core.so.3.4.8解决方法：1.把软链接补全，以前可以，这次没测2.把libopencv_core.so.3.4.8 改名为libopencv_core.so...

undefined reference to `cv::resize../../dependencies/OpenCV348/lib/libopencv_imgcodecs.so: undefined reference to `cv::resize(cv::_InputArray const&, cv::_OutputArray const&, cv::Size_<int>, double, double, int)'../../dependencies/Open...

c++ opencv 基本操作

c++ opencv mat 最大值#include <opencv2/opencv.hpp>using namespace cv;using namespace std;int main(){ uchar data[] = { 10, 200, 5, 7, 9, 15, 35, 60, 80, 170, 100, 2, 55, 37, 70 }; Mat m1(3, 5, CV_8U, data); Mat m_min, m_max; ...

python opencv 高斯模糊 运动模糊增强

cmake_minimum_required( VERSION 3.2 )project( imageBasics )# 添加c++ 11标准支持set( CMAKE_CXX_FLAGS"-std=c++11")# 寻找OpenCV库这里有的带双引号：set(OpenCV_DIR /home/chaofan/opt/opencv-3.4.4/release)find_package( OpenCV 3 REQUIRED )# 添加头文件include_direc...

opencv 引用是，报错没有与制定类型匹配的重载函数 cv::Vec<_Tp 实例171个错误，解决方法：#include <opencv2/opencv.hpp>把下面两个注释掉，可能opencv引用也不能重复。#include "opencv/core.hpp"#include "opencv2/imgproc.hpp"...

一、安装opencv（这里不再讲述）二、添加库路径（创建opencv.conf文件）输入命令：vi /etc/ld.so.conf.d/opencv.conf输入/usr/local/lib，并保存退出三、添加环境变量输入命令：vi /etc/profile在末尾加入：export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:$PKG_CONFIG_PATHexport LD_LIBRARY_PATH=$LD_LIBRARY_PAT...

1. 以管理员身份运行命令控制符。2. 输入以下指令setx -m OPENCV_DIR D:\OpenCV\Build\x86\vc10 (suggested for Visual Studio 2010 - 32 bit Windows)setx -m OPENCV_DIR D:\OpenCV\Build\x64\vc10 (suggested for Visual Studio 2010 - 64 bit Windows)setx -m OPENCV_DIR D:\...

读取图片img = cv2.imdecode(np.fromfile(img_path, dtype=np.uint8), 1)1其中：img_path为读取图片路径及图片名，可以包含中文保存图片cv2.imencode('.jpg', src)[1].tofile(save_path)

出现如下错误：cv2.error: OpenCV(3.4.3) C:\projects\opencv-python\opencv\modules\imgproc\src\templmatch.cpp:1107: error: (-215:Assertion failed) _img.size().height <= _templ.size().height && _img.size().width <= _templ.size().width in function ‘cv::

Opencv C++下的Mat归一化void Mat_L2_mormal(cv::Mat &image){ //mat*mat, cv::Mat out; out=(image) .mul (image); float sum=0.0; for (int i=0;i<image.rows;i++){ sum=sqrt(cv::sum(out.row(i))[0]); image.row(i)=(image.row...

DLL load failed: The specified module could not be found

python opencv 检测特定颜色import cv2import numpy as np cap = cv2.VideoCapture(0) # set blue thresh 设置HSV中蓝色、天蓝色范围lower_blue = np.array([78,43,46])upper_blue = np.array([110,255,255]) while(1): ...

opencv3.3库文件和头文件引用

opencv 释放内存

经过测试，发现cv2.imread读取图片，路径中有中文，则返回nullcv2.imread 中文路径返回null这个方法还没试： file = askopenfilename() im2 = cv2.imread(file.encode('gbk') ...

这个需要16和14ms：import numpy as npimport cv2import timepath='d:/1.jpg'for i in range(10): img=cv2.imread(path) start=time.time() img_encode = cv2.imencode('.jpg', img)[1] # im...

pil读图片需要0ms，但是转换opencv需要13msopencv读图片需要13msimport numpy as npimport cv2import timefrom PIL import Imagedef a(): path='d:/1.jpg' for i in range(10): start=time.time()...

OpenCV2-------findContours函数参数详解原文：https://blog.youkuaiyun.com/qq_34374664/article/details/82254727Opencv中通过使用findContours函数，简单几个的步骤就可以检测出物体的轮廓，很方便。这些准备继续探讨一下findContours方法中各参数的含义及用法，比如要求只检测最外层轮廓该怎么办？...

#!/usr/bin/env python# -*- coding: utf-8 -*-import cv2import numpy as npimg = cv2.imread('00001.jpg')img = cv2.GaussianBlur(img, (5, 5), 0)gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)si...

OpenCV-Python教程（4、形态学处理）

FILLED is not a menber of 'cv' in opencv2.4.9

opencv调试方法

C++读写txt文件方式以及基于opencv的Mat数据类型读写txt文件

OpenCV对图像的光照归一化处理