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Home/ Questions/Q 7583935
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Editorial Team
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Editorial Team
Asked: May 30, 20262026-05-30T18:48:10+00:00 2026-05-30T18:48:10+00:00

in OpenCV 2 and later there is method Mat::resize that let’s you add any

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in OpenCV 2 and later there is method Mat::resize that let’s you add any number of rows with the default value to your matrix is there any equivalent method for the column. and if not what is the most efficient way to do this.
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  1. Editorial Team
    Editorial Team
    2026-05-30T18:48:11+00:00Added an answer on May 30, 2026 at 6:48 pm

    Use cv::hconcat:

    Mat mat;
    Mat cols;
    
    cv::hconcat(mat, cols, mat);
    
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