[Opencv learning] use of cvconvert

Author: gnuhpc
Source: http://www.cnblogs.com/gnuhpc/

Opencv can use the following functions to display a cvarr data mat

Cvnamedwindow ("winname", cv_window_autosize );
Cvshowimage ("winname", mat );
Cvwaitkey (0 );

However, when mat is of the iiplmage * type and its depth is ipl_depth_8u (8bit unsigned integer), the display effect is better.

For other in-depth iplimage * or cvmat * data, you can use the cvconvert function for conversion and display. As shown below

Void show (cvmat * mat)
{
Cvsize size = cvsize (mat-> width, mat-> height );
Iplimage * imgbuf = cvcreateimage (size, ipl_depth_8u, 1 );
Cvconvert (MAT, imgbuf );
Cvnamedwindow ("mat", cv_window_autosize );
Cvshowimage ("image", mat );
Cvwaitkey (0 );

Cvreleaseimage (& imgbuf );
}

 

Author: gnuhpc
Source: http://www.cnblogs.com/gnuhpc/