我已经为 OCR 处理了一张图像,我遇到了一个问题,即处理后的图像有太多噪点。我是此类编程的初学者,我只是想知道你们是否可以帮助我对其进行降噪?
这是我目前的代码
File newFile = new File(mFile);
orig = Imgcodecs.imread(newFile.getAbsolutePath(),Imgcodecs.CV_LOAD_IMAGE_GRAYSCALE);
Mat small = new Mat();
Imgproc.pyrDown(orig,small);
final Size kernelSize = new Size(3, 3);
final Point anchor = new Point(-1, -1);
final int iterations = 3;
Mat kernel = Imgproc.getStructuringElement(Imgproc.MORPH_ELLIPSE, kernelSize);
Imgproc.GaussianBlur(small,small, new Size(3,3),0);
Imgproc.erode(small, small,kernel,anchor,iterations);
Imgproc.dilate(small,small,kernel);
Imgproc.adaptiveThreshold(small,small,255,Imgproc.ADAPTIVE_THRESH_GAUSSIAN_C,Imgproc.THRESH_BINARY,45,2);
Mat kernel2 = Imgproc.getGaussianKernel(6,2);
Imgproc.dilate(small,small,kernel2);
Imgproc.erode(small,small,kernel);
Bitmap bm = Bitmap.createBitmap(small.cols(), small.rows(),Bitmap.Config.ARGB_8888);
Utils.matToBitmap(small, bm);
这里是输出
示例 1
示例 2
最佳答案
关于android - 图像处理 : Removing noise of processed image OPENCV - JAVA,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/52049507/