2014/10/15 下午 10:05:52

iphone Programming Glossary: cv

http://stackoverflow.com/questions/13493035/boundry-detect-paper-sheet-opencv

detect paper sheet opencv I am new in openCV I already detect edge of paper sheet but my result image is blurred after draw lines on edge How I can.. quality remain unaffected. what I am Missing.. My code is below. Many thanks. void forOpenCV if imageView.image nil cv Mat greyMat self cvMatFromUIImage imageView.image vector vector cv Point squares cv Mat img self debugSquares squares greyMat.. what I am Missing.. My code is below. Many thanks. void forOpenCV if imageView.image nil cv Mat greyMat self cvMatFromUIImage imageView.image vector vector cv Point squares cv Mat img self debugSquares squares greyMat imageView.image..

How to make Supplementary View float in UICollectionView as Section Headers do in UITableView plain style

http://stackoverflow.com/questions/13511733/how-to-make-supplementary-view-float-in-uicollectionview-as-section-headers-do-i

CGRect rect NSMutableArray answer super layoutAttributesForElementsInRect rect mutableCopy UICollectionView const cv self.collectionView CGPoint const contentOffset cv.contentOffset NSMutableIndexSet missingSections NSMutableIndexSet indexSet.. rect mutableCopy UICollectionView const cv self.collectionView CGPoint const contentOffset cv.contentOffset NSMutableIndexSet missingSections NSMutableIndexSet indexSet for UICollectionViewLayoutAttributes layoutAttributes.. NSInteger section layoutAttributes.indexPath.section NSInteger numberOfItemsInSection cv numberOfItemsInSection section NSIndexPath firstCellIndexPath NSIndexPath indexPathForItem 0 inSection section NSIndexPath..

Cropping an image in iOS using OpenCV face detection

http://stackoverflow.com/questions/14756505/cropping-an-image-in-ios-using-opencv-face-detection

the image saved and not the face. What's wrong in my code _faceCascade.detectMultiScale mat faces 1.1 2 kHaarOptions cv Size 40 40 And inside the displayfaces functions am cropping with this code CGRect cropRect CGRectMake faces i .x faces.. it I tried with the below code also again am getting the same images. i.e. am not getting the actual face image cv Mat image_roi cv Rect roi faces i .x faces i .y faces i .width faces i .height cv Mat testMat roi .copyTo image_roi UIImage.. with the below code also again am getting the same images. i.e. am not getting the actual face image cv Mat image_roi cv Rect roi faces i .x faces i .y faces i .width faces i .height cv Mat testMat roi .copyTo image_roi UIImage img CaptureViewController..