nagesh.telivo's profile - activity

i am beginer in opencv how to use flood fill method.thanks for help

i am using following code it will throws exception

Note:hear source is mat object

CODE:

            Imgproc.floodFill(source, source, new Point(source.cols()-10,10), new Scalar(255.0, 255.0, 255));
    Imgproc.floodFill(source, source, new Point(10,10), new Scalar(255.0, 255.0, 255.0));
    Imgproc.floodFill(source, source, new Point(10,source.rows()-10), new Scalar(255.0, 255.0, 255.0));
    Imgproc.floodFill(source, source, new Point(source.cols()-10,source.rows()-10), new Scalar(255.0, 255.0, 255.0));

Exception:

OpenCV Error: Assertion failed (mask.rows == size.height+2 && mask.cols == size.width+2) in int cv::floodFill(cv::InputOutputArray, cv::InputOutputArray, cv::Point, cv::Scalar, cv::Rect, cv::Scalar, cv::Scalar, int), file /builds/master_pack-android/opencv/modules/imgproc/src/floodfill.cpp, line 549 06-17 18:58:54.988: E/org.opencv.imgproc(16031): imgproc::floodFill_11() caught cv::Exception: /builds/master_pack-android/opencv/modules/imgproc/src/floodfill.cpp:549: error: (-215) mask.rows == size.height+2 && mask.cols == size.width+2 in function int cv::floodFill(cv::InputOutputArray, cv::InputOutputArray, cv::Point, cv::Scalar, cv::Rect, cv::Scalar, cv::Scalar, int)

Thank for response.i am beginer to the opencv,what is the right way for doing this(i have just image path,i need to increase sharpness with out losing it's colors).Thanks.....

I am increasing image sharpness by using fallowing code

Mat source = Imgcodecs.imread(path, Imgcodecs.CV_LOAD_IMAGE_COLOR);
Mat destination=newMat(source.rows(),source.cols(),source.type());
Imgproc.GaussianBlur(source, destination, new Size(0,0), 10);
Core.addWeighted(source, 2.5, destination, -0.5, 0, destination);
bitmap = Bitmap.createBitmap(destination.cols(),
destination.rows(),Bitmap.Config.ARGB_8888);
Utils.matToBitmap(destination, bitmap);
image_view2.setImageBitmap(bm);

it is displaying some quality image but displayed image is only black & white, lost it's original colors

but I need to display the original colour

How to do it? Thank's for helping