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POOpenCV: How can I properly segment an Image with Thresholding / use a Binary Image to segment the original Image?
 

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  1. POOpenCV: How can I properly segment an Image with Thresholding / use a Binary Image to segment the original Image?
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    <p>I'm currently developing a project with Mammography and I'm trying to comprehend how I can segment an image into two sections: a searchable area (ROI) and a non-searchable area. The focus of this question is directed at only the underlying algorithm of the actual image analysis / processing. Most of the results from Google and Stack Overflow have yielded helpful pieces of information, but none of them explain the steps of image analysis / processing and why these steps are important and what exactly they're each doing.</p> <p>I've written a small code segment that takes an image, re-sizes the image, and 'binarizes' the image. (Below.) Is there any way that I can trace a line (Contour?) on my binary image, move this line to my original image, and use it as a guideline in having my algorithm determine searchable areas (ROI) from non-searchable areas? Is there a simpler way of doing this?</p> <pre><code>// ** Main ** // int main( int argc, char** argv ) { /// Load an image src = cvLoadImage(argv[1], CV_LOAD_IMAGE_GRAYSCALE); // Create Dummy Image Mat destination; destination = cvCreateMat(3328/5, 4084/5, CV_32FC1); resize(src, destination,cvSize(3328/5,4084/5),0,0); src = destination; /// Create a matrix of the same type and size as src (for dst) dst.create( src.size(), src.type() ); /// Create a window namedWindow( window_name, CV_WINDOW_AUTOSIZE ); // Binarize the Image threshold(src, dst, 128, 255,CV_THRESH_BINARY | CV_THRESH_OTSU); // Show the Image imshow( window_name, dst ); /// Wait until user exit program by pressing a key waitKey(0); return 0; } </code></pre> <p>For clarification and reiteration, I've looked into quite a few tutorials and nothing has been of help for this, specifically. I would appreciate all the help I can get!</p>
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