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POOpenCV Error: Unsupported format or combination of formats
 

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  1. POOpenCV Error: Unsupported format or combination of formats
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    <p>I am developing an application in whitch i have to take a picture from camera and after that Detect the Edge Square(Like Document page.) in the picture...After a long searching i found OpenCV library to achieve this, i have succesfully imported the java library for android, But problem is that when i call the method of opencv to detect Square(The method is </p> <p><strong>Imgproc.findContours(converted, contours,hierarchy,Imgproc.CHAIN_APPROX_SIMPLE,Imgproc.RETR_LIST)</strong>)..it give me the </p> <p>exception...<strong><em>OpenCV Error:</em></strong> Unsupported format or combination of formats (FindContours support only 8uC1 and 32sC1 images) in _CvContourScanner* cvStartFindContours(void*, CvMemStorage*, int, int, int, CvPoint), file /home/reports/ci/slave/50-SDK/opencv/modules/imgproc/src/contours.cpp, line 196</p> <p>I am sending u some piece of code-----------------------------------------------------</p> <p>public void convertImage() {</p> <pre><code> Mat ori = new Mat(); Mat converted = new Mat(200, 200, CvType.CV_8UC1, new Scalar(0)); try { ori = Utils.loadResource(MainActivity.this, R.drawable.ic_launcher, Highgui.CV_LOAD_IMAGE_COLOR); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } Imgproc.cvtColor(ori, converted, Imgproc.COLOR_RGB2GRAY, 4); // convert Image to grayscale Imgproc.threshold(ori, converted, 50, 250, Imgproc.ADAPTIVE_THRESH_MEAN_C); // threshold the image List&lt;MatOfPoint&gt; contours = new ArrayList&lt;MatOfPoint&gt;(10); Mat hierarchy = new Mat(200, 200, CvType.CV_32FC1, new Scalar(0)); Imgproc.findContours(converted, contours, hierarchy,Imgproc.CHAIN_APPROX_SIMPLE,Imgproc.RETR_LIST); ImageView frame = (ImageView) findViewById(R.id.imageView1); Imgproc.cvtColor(converted, converted, Imgproc.COLOR_GRAY2RGBA, 4); // convert Image back to RGB Bitmap bmp = Bitmap.createBitmap(converted.cols(), converted.rows(), Bitmap.Config.ARGB_8888); frame.setImageBitmap(bmp); } </code></pre> <p>Any Help will be apreciated------------------ Thanks in advance</p>
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    1. USDeepankar Baghel
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