[Solved] How to remove items adjacent to border of image [closed]

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Scan the borders of the image and when you find a white pixel flood fill with black.

You will want something like:

uchar white(255);

// do top and bottom row
for(int y = 0; y < image.rows; y += image.rows-1)
{
    uchar* row = image.ptr<uchar>(y)
    for(int x = 0; x < image.cols; ++x)
    {
        if(row[x] == white)
        {   
            cv::floodFill(image, cv::Point(x,y), cv::Scalar(0), (cv::Rect*)0, cv::Scalar(), cv::Scalar(200));
        }
    }
}
// fix left and right sides
for(int y = 0; y < image.rows; ++y)
{
    row = image.ptr<uchar>(y)
    for(int x = 0; x < image.cols; x += image.cols - 1)
    {
        if(row[x] == white)
        {   
            cv::floodFill(image, cv::Point(x,y), cv::Scalar(0), (cv::Rect*)0, cv::Scalar(), cv::Scalar(200));
        }
    }
 }

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solved How to remove items adjacent to border of image [closed]