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POOCR with javacv
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copied!<p>I am making an OCR for my project and stuck on a point, Right now i am performing segmentation on the basis of contours its working fine with few images but there few more where it fails even when the image quality is good, I would appreciate if someone suggest me more accurate way, and if someone provide a code example, here is my current code. </p> <pre><code>public static void imageBinarization(IplImage src, IplImage dst){ IplImage r, g, b, s; r = cvCreateImage(cvGetSize(src), IPL_DEPTH_8U, 1); g = cvCreateImage(cvGetSize(src), IPL_DEPTH_8U, 1); b = cvCreateImage(cvGetSize(src), IPL_DEPTH_8U, 1); cvSplit(src, r, g, b, null); s = cvCreateImage(cvGetSize(src), IPL_DEPTH_8U, 1); cvAddWeighted(r, 1./3., g, 1./3., 0.0, s); cvAddWeighted(s, 2./3., b, 1./3., 0.0, s); cvThreshold(s, dst, 100, 100, CV_THRESH_BINARY_INV); cvReleaseImage(r); cvReleaseImage(g); cvReleaseImage(b); cvReleaseImage(s); } public static void imageSegmentation(String sourcePath, String targetPath){ cvConvert(t0, mat0); cvConvert(t8, mat8); cvConvert(t9, mat9); IplImage image = cvLoadImage(sourcePath); IplImage grayImage = cvCreateImage(cvGetSize(image), IPL_DEPTH_8U, 1); //cvSmooth(image, image, CV_BLUR_NO_SCALE, 2); //cvSmooth(image, image, CV_BLUR, 9, 9, 2, 2); //cvSmooth(image, image, CV_GAUSSIAN, 3); imageBinarization(image, grayImage); CvMemStorage mem; CvSeq contours = new CvSeq(); CvSeq ptr = new CvSeq(); mem = cvCreateMemStorage(0); CvRect rect = null; int px1,px2, py1, py2; CvScalar blue = CV_RGB(0, 0, 250); int n = 0; int i = 0; cvFindContours(grayImage, mem, contours, sizeof(CvContour.class) , CV_RETR_CCOMP, CV_CHAIN_APPROX_SIMPLE, cvPoint(0,0)); Random rand = new Random(); for (ptr = contours; ptr != null; ptr = ptr.h_next()) { Color randomColor = new Color(rand.nextFloat(), rand.nextFloat(), rand.nextFloat()); CvScalar color = CV_RGB( randomColor.getRed(), randomColor.getGreen(), randomColor.getBlue()); rect = cvBoundingRect(ptr, n);//new CvRect(cvGetSeqElem(c, c.total())); px1 = rect.x(); py1 = rect.y(); px2 = (rect.x() + rect.width()); py2 = (rect.y() + rect.height()); cvRectangle(image, cvPoint(px1, py1), cvPoint(px2, py2), blue, 1, CV_AA, 0); //---- xbox = rect.x(); ybox = rect.y(); wbox = rect.width(); hbox = rect.height(); img = cvCreateImage(cvSize(wbox, hbox), image.depth(), image.nChannels()); cvSetImageROI(image, cvRect(xbox, ybox, wbox, hbox)); cvCopy(image, img); cvResetImageROI(image); //cvSaveImage(targetPath+i+".jpg", img); i++; //--- //cvDrawContours(image, ptr, color, CV_RGB(0,0,0), -1, CV_FILLED, 8, cvPoint(0,0)); } cvSaveImage(targetPath+"mat.jpg", image); } </code></pre>

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