OpenCV的使用Android中的模板匹配 [英] Template Matching in Android using openCV
问题描述
我想配合使用模板匹配Android中的摄像机输入的图像。当我尝试这与静态图像2中一样在这里:<一href=\"http://stackoverflow.com/questions/17001083/opencv-template-matching-example-in-android/17516753?noredirect=1#comment28832789_17516753\">OpenCV模板匹配在Android中的例子,一切都运行得很好。但是,当我尝试从相机用拍摄的图像,我没有得到正确的结果。以下是我写的code:
I'm trying to match an image with the camera input in Android using template matching. When i try this with static 2 images like in here: OpenCV Template Matching example in Android, everything works just fine. But when I try to use the captured images from the camera, I do not get the correct result. Following is the code that I have written:
String baseDir = Environment.getExternalStorageDirectory().getAbsolutePath();
Mat img = Highgui.imread(baseDir + "/mediaAppPhotos/img2.png");
Mat templ = Highgui.imread(baseDir+ "/mediaAppPhotos/chars.png");
int result_cols = img.cols() - templ.cols() + 1;
int result_rows = img.rows() - templ.rows() + 1;
Mat result = new Mat(result_cols, result_rows, CvType.CV_32FC1);
// / Do the Matching and Normalize
Imgproc.matchTemplate(img, templ, result, Imgproc.TM_CCOEFF);
Core.normalize(result, result, 0, 1, Core.NORM_MINMAX, -1,
new Mat());
// / Localizing the best match with minMaxLoc
MinMaxLocResult mmr = Core.minMaxLoc(result);
Point matchLoc;
if (Imgproc.TM_CCOEFF == Imgproc.TM_SQDIFF
|| Imgproc.TM_CCOEFF == Imgproc.TM_SQDIFF_NORMED) {
matchLoc = mmr.minLoc;
} else {
matchLoc = mmr.maxLoc;
}
// / Show me what you got
Core.rectangle(
img,
matchLoc,
new Point(matchLoc.x + templ.cols(), matchLoc.y
+ templ.rows()), new Scalar(0, 255, 0));
// Save the visualized detection.
System.out.println("Writing " + baseDir+ "/mediaAppPhotos/result.png");
Highgui.imwrite(baseDir + "/mediaAppPhotos/result.png", img);
欲这种模板匹配时,图像从摄像机捕获以及工作。任何帮助是极大AP preciated!
I want to this template matching to work when the image is captured from the camera as well. Any help is greatly appreciated!
推荐答案
也许是这样的:
的https://play.google.com/store/apps/details?id=in.mustafaak.imagematcher&hl=es_419
在github上提供code
code available in github
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