although there are many simple solution,i tried to write a simple class to solve your problem. i hope you like it.
i tried to explain how to use it by comments on the code.
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/highgui/highgui.hpp>
using namespace cv;
using namespace std;
class ImageCells
{
public:
ImageCells(int rows, int cols, int width, int height);
virtual ~ImageCells() {}
int cellwidth() const {return m_width;}
int cellheight() const { return m_height;}
int cols() const { return m_cols;}
int rows() const { return m_rows;}
void setCell( int col, int row, Mat img );
void setImage( Mat img );
Mat getCell( int col, int row );
Mat image;
protected:
int m_width;
int m_height;
int m_cols;
int m_rows;
};
ImageCells::ImageCells( int rows, int cols, int width, int height)
{
image = Mat::zeros( rows * height, cols * width, CV_8UC3);
m_width = width;
m_height = height;
m_cols = cols;
m_rows = rows;
}
void ImageCells::setCell( int col, int row, Mat img )
{
if(img.cols == m_width & img.rows == m_height)
{
Mat roi = image( Rect(col * m_width, row * m_height, m_width, m_height) );
img.copyTo(roi);
}
}
Mat ImageCells::getCell( int col, int row )
{
Mat roi = image( Rect(col * m_width, row * m_height, m_width, m_height) );
return roi.clone();
}
void ImageCells::setImage( Mat img )
{
if(img.cols >= image.cols & img.rows >= image.rows)
img.copyTo(image);
}
int main( int argc, char** argv )
{
ImageCells cells(4,3,70,90); // it creates a ImageCells class having 4 rows and 3 cols, cell witdh = 70 cell height = 90 you can change these values according your needs
Mat img = Mat( 90, 70, CV_8UC3,Scalar(0,0,255)); // a test mat to use with cells.setCell important note is : img witdh&height must be same to cell witdh&height
for(int i=0; i < cells.cols(); i++)
for(int j =0; j < cells.rows(); j++ )
{
cells.setCell(i,j,img); // here you see how to use setCell
randu(img,30*i,160*j); // to show purpose changes img
imshow("cells.image",cells.image);
waitKey();
}
for(int i=0; i < cells.cols(); i++)
for(int j =0; j < cells.rows(); j++ )
{
imshow("cells",cells.getCell(i,j)); // here you see how to use getCell
waitKey();
}
return 0;
}
noob question I know, but bump as I need help and can't find anything on this online