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c++ Programming Glossary: roiOpenCv 2.3 C - How to isolate object inside image http://stackoverflow.com/questions/10315551/opencv-2-3-c-how-to-isolate-object-inside-image After that procedure all you really need to do is set the ROI Region of Interest of the original image to the area defined.. box.size.height Crop the original image to the defined ROI cv Mat crop img roi cv imshow crop crop cv imwrite cropped.png..
Setting ROI with mouse from a rectangle on a video http://stackoverflow.com/questions/10881397/setting-roi-with-mouse-from-a-rectangle-on-a-video ROI with mouse from a rectangle on a video I have video when the.. the rectangle perfectly but I can't set that rectangle as ROI. What I want to do is to set that rectangle as Region of Interest.. want to do is to set that rectangle as Region of Interest ROI to do some image processing on that ROI. I am unable to set..
Square detection doesn't find squares http://stackoverflow.com/questions/7731742/square-detection-doesnt-find-squares contained in the square...How is it possible without a ROI c c opencv image processing object detection share improve..
Executing cv::warpPerspective for a fake deskewing on a set of cv::Point http://stackoverflow.com/questions/7838487/executing-cvwarpperspective-for-a-fake-deskewing-on-a-set-of-cvpoint is not the best idea to store the original points of the ROI since the coordinates will change a little bit to fit into the..
With OpenCV, try to extract a region of a picture described by ArrayOfArrays http://stackoverflow.com/questions/10176184/with-opencv-try-to-extract-a-region-of-a-picture-described-by-arrayofarrays i contours_final.size i Get bounding box for contour Rect roi boundingRect contours_final i This is a OpenCV function Create.. you used to compute the contours. contourRegion imageROI roi Mat maskROI mask roi Save this if you want a mask for pixels.. the contours. contourRegion imageROI roi Mat maskROI mask roi Save this if you want a mask for pixels within the contour in..
OpenCv 2.3 C - How to isolate object inside image http://stackoverflow.com/questions/10315551/opencv-2-3-c-how-to-isolate-object-inside-image Region of Interest to the area defined by the box cv Rect roi roi.x box.center.x box.size.width 2 roi.y box.center.y box.size.height.. of Interest to the area defined by the box cv Rect roi roi.x box.center.x box.size.width 2 roi.y box.center.y box.size.height.. by the box cv Rect roi roi.x box.center.x box.size.width 2 roi.y box.center.y box.size.height 2 roi.width box.size.width roi.height..
How to determine a region of interest and then crop an image using OpenCV http://stackoverflow.com/questions/15693900/how-to-determine-a-region-of-interest-and-then-crop-an-image-using-opencv they were switched manually in the code below cv Rect roi roi.x box.center.x box.size.height 2 roi.y box.center.y box.size.width.. they were switched manually in the code below cv Rect roi roi.x box.center.x box.size.height 2 roi.y box.center.y box.size.width.. below cv Rect roi roi.x box.center.x box.size.height 2 roi.y box.center.y box.size.width 2 roi.width box.size.height roi.height..
Equivalent to cvSetImageROI in the OpenCV C++ interface http://stackoverflow.com/questions/7041181/equivalent-to-cvsetimageroi-in-the-opencv-c-interface right on the docs . Shame on me. Make a rectangle Rect roi 10 20 100 50 Point a cv Mat header at it no allocation is done..
OpenCV extract area of an image from a vector of squares http://stackoverflow.com/questions/7755647/opencv-extract-area-of-an-image-from-a-vector-of-squares suggested this for size_t x 0 x squares.size x Rect roi squares x 0 .x squares x 0 .y squares x 1 .x squares x 0 .x.. x 0 .x squares x 3 .y squares x 0 .y Mat subimage image roi in order to generate a new Mat called subimage for all the squares.. In fact I get this error OpenCV Error Assertion failed 0 roi.x 0 roi.width roi.x roi.width m.cols 0 roi.y 0 roi.height roi.y..
http://stackoverflow.com/questions/7946383/using-roi-in-opencv questions. Just really confused c video opencv contour roi share improve this question OpenCV supports only rectangular..
http://stackoverflow.com/questions/8206466/how-to-set-roi-in-opencv in the second one I think this code should work cv Rect roi cv Rect img2.cols img1.cols 2 img2.rows img1.rows 2 img1.cols.. 2 img2.rows img1.rows 2 img1.cols img1.rows cv Mat roiImg roiImg img2 roi img1.copyTo roiImg share improve this answer..
How can one easily detect whether 2 ROIs intersects in OpenCv? http://stackoverflow.com/questions/8714101/how-can-one-easily-detect-whether-2-rois-intersects-in-opencv Is there a ready method in OpenCV for that c opencv roi share improve this question I do not know of any ready made..
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