OpenCV分离颜色通道+多通道颜色图像混合
程序员文章站
2022-05-16 16:17:33
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1、API
Mat srcImage;
Mat logoImage;
vector<Mat> channels;
Mat imageBlueChannel;
logoImage = imread("dota_logo.jpg",0);
srcImage = imread("dota_jugg.jpg");
if(!logoImage.data){cout<<"Error"<<endl; return -1;}
if(!srcImage.data){cout<<"Error"<<endl; return -1;}
split(srcImage,channels);
imageBlueChannel = channels.at(0);
addWeighted(imageBlueChannel(Rect(500,250,logoImage.cols,logoImage.rows)),
1.0,logoImage,0.5,0,
imageBlueChannel(Rect(500,250,logoImage.cols,logoImage.rows)));
merge(channels,srcImage);
主要是 1、颜色通道分离,2、以某一个通道加权混合,3、合并通道
2、完整代码
#include <iostream>
#include <opencv2/opencv.hpp>
using namespace std;
using namespace cv;
bool MultiChannelBlending();
int main() {
std::cout << "Hello, World!" << std::endl;
if(MultiChannelBlending())
{
cout<<endl<<"嗯。好了,得出了你需要的混合值图像~";
}
waitKey(0);
return 0;
}
bool MultiChannelBlending()
{
Mat srcImage;
Mat logoImage;
vector<Mat> channels;
Mat imageBlueChannel;
logoImage = imread("dota_logo.jpg",0);
srcImage = imread("dota_jugg.jpg");
if(!logoImage.data){cout<<"Error"<<endl; return -1;}
if(!srcImage.data){cout<<"Error"<<endl; return -1;}
split(srcImage,channels);
imageBlueChannel = channels.at(0);
addWeighted(imageBlueChannel(Rect(500,250,logoImage.cols,logoImage.rows)),
1.0,logoImage,0.5,0,
imageBlueChannel(Rect(500,250,logoImage.cols,logoImage.rows)));
merge(channels,srcImage);
namedWindow("<1>游戏原画+logo蓝色通道 by浅墨");
imshow("<1>游戏原画+logo蓝色通道 by浅墨",srcImage);
//绿色通道
Mat imageGreenChannel;
srcImage = imread("dota_jugg.jpg");
split(srcImage,channels);
imageGreenChannel = channels[1];
addWeighted(imageGreenChannel(Rect(500,250,logoImage.cols,logoImage.rows)),
1.0,logoImage,0.5,0,
imageGreenChannel(Rect(500,250,logoImage.cols,logoImage.rows)));
merge(channels,srcImage);
namedWindow("<2>游戏原画+G通道 by浅墨");
imshow("<2>游戏原画+G通道 by浅墨",srcImage);
//红色通道
Mat imageRedChannel;
srcImage = imread("dota_jugg.jpg");
split(srcImage,channels);
imageRedChannel = channels[2];
addWeighted(imageRedChannel(Rect(500,250,logoImage.cols,logoImage.rows)),
1.0,logoImage,0.5,0,
channels[2](Rect(500,250,logoImage.cols,logoImage.rows)));
merge(channels,srcImage);
namedWindow("<3>游戏原画+R通道 by浅墨");
imshow("<3>游戏原画+R通道 by浅墨",srcImage);
return 1;
}
cmake_minimum_required(VERSION 3.14)
project(5_3_1)
find_package(OpenCV 3 REQUIRED)
include_directories(${OpenCV_DIRS})
set(CMAKE_CXX_STANDARD 11)
add_executable(5_3_1 main.cpp)
target_link_libraries(${PROJECT_NAME} ${OpenCV_LIBS})
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