Zi 字媒體
2017-07-25T20:27:27+00:00
按照OPENCV教學文件 純C++ 範例練習紀錄 ~ [opencv_ex04-圖像單純複製clone、圖像轉換+複製cvtColor、判斷是RGB或者為灰階圖channels、抓取/設定圖像每一彩色像素點的RGB值at(y, x)、抓取/設定圖像每一灰階像素點的值at(y, x)]
GITHUB:https://github.com/jash-git/CPP_opencv249_ex
#include
#include
#include
#include
#include
#include
#include
#if defined(WIN32)
#define TIMEB _timeb
#define ftime _ftime
typedef __int64 TIME_T;
#else
#define TIMEB timeb
typedef long long TIME_T;
#endif
using namespace cv;
using namespace std;
void Pause()
{
printf("Press Enter key to continue...");
fgetc(stdin);
}
int main()
{
Mat src00, dst00,dst000; Mat src01, dst01; src00 = imread("image-20150507-1245-fctkfq.jpg");//imread("Lena_original.jpg"); if (!src00.data) { printf("could not load image...\n"); } else
{
namedWindow("Lena_original", CV_WINDOW_AUTOSIZE);
imshow("Lena_original", src00);
cvtColor(src00, src01, CV_BGR2GRAY);//imread("Lena_original.jpg",IMREAD_GRAYSCALE);
namedWindow("cvtColor()~CV_BGR2GRAY", CV_WINDOW_AUTOSIZE);
imshow("cvtColor()~CV_BGR2GRAY", src01);
int cols = src00.cols;
int rows = src00.rows;
int channels00 = src00.channels();
int channels01 = src01.channels();
printf("rows : %d cols : %d\n", rows, cols);
printf("channels00 : %d channels01 : %d\n", channels00, channels01);
dst00=src00.clone();
dst01=src01.clone();
dst000.create(src00.size(),src00.type());
for(int x=0;x(y, x)= 255-dst01.at(y, x);
Vec3b ReadRGB = dst00.at(y, x);
int b=ReadRGB.val[0];
int g=ReadRGB.val[1];
int r=ReadRGB.val[2];
dst00.at(y,x)[0]=255-b;
dst00.at(y,x)[1]=255-g;
dst00.at(y,x)[2]=255-r;
dst000.at(y,x)[0]=0;
dst000.at(y,x)[2]=g;
dst000.at(y,x)[3]=r;
}
}
namedWindow("Lena_test01", CV_WINDOW_AUTOSIZE);
imshow("Lena_test01", dst00);
namedWindow("Lena_test02", CV_WINDOW_AUTOSIZE);
imshow("Lena_test02", dst01);
namedWindow("Lena_test03", CV_WINDOW_AUTOSIZE);
imshow("Lena_test03", dst000);
} waitKey(0);
Pause();
return 0;
}
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