2014/10/15 下午 10:05:47

iphone Programming Glossary: croprect

Creating our own crop rect in camera overlay

http://stackoverflow.com/questions/10118955/creating-our-own-crop-rect-in-camera-overlay

http://stackoverflow.com/questions/11432169/ios-save-image-with-custom-resolution

renderInContext UIGraphicsGetCurrentContext UIImage screenshot UIGraphicsGetImageFromCurrentImageContext CGRect cropRect CGRectMake 0 0 1435 1435 CGImageRef imageRef CGImageCreateWithImageInRect screenshot CGImage cropRect CGImageRelease imageRef.. CGRect cropRect CGRectMake 0 0 1435 1435 CGImageRef imageRef CGImageCreateWithImageInRect screenshot CGImage cropRect CGImageRelease imageRef UIImageWriteToSavedPhotosAlbum screenshot nil nil nil UIGraphicsEndImageContext but the resolution.. UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext Render the screen shot at custom resolution CGRect cropRect CGRectMake 0 0 1435 1435 UIGraphicsBeginImageContextWithOptions cropRect.size captureView.opaque 1.0f screenshot drawInRect..

Blur an image of specific part (rectangular, circular)?

http://stackoverflow.com/questions/14107979/blur-an-image-of-specific-part-rectangular-circular

two Images #pragma mark Marge two Images UIImage addImageToImage UIImage img withImage2 UIImage img2 andRect CGRect cropRect CGSize size CGSizeMake imageView.image.size.width imageView.image.size.height UIGraphicsBeginImageContext size CGPoint pointImg1.. UIGraphicsBeginImageContext size CGPoint pointImg1 CGPointMake 0 0 img drawAtPoint pointImg1 CGPoint pointImg2 cropRect.origin img2 drawAtPoint pointImg2 UIImage result UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return.. 2 0 0 currentPoint.x circleSizeW 2 currentPoint.y currentPoint.y circleSizeH 2 0 0 currentPoint.y circleSizeH 2 CGRect cropRect CGRectMake currentPoint.x currentPoint.y circleSizeW circleSizeH NSLog @ x 0.0f y 0.0f width 0.0f height 0.0f cropRect.origin.x..

Cropping an image in iOS using OpenCV face detection

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

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 i .y faces i .width faces i .width CGImageRef cropped_img CGImageCreateWithImageInRect self.storeImage.CGImage.. faces i .y faces i .width faces i .width CGImageRef cropped_img CGImageCreateWithImageInRect self.storeImage.CGImage cropRect UIImage img UIImage imageWithCGImage cropped_img UIImageWriteToSavedPhotosAlbum img self nil nil Am getting the correct..

Cropping a UIImage

http://stackoverflow.com/questions/158914/cropping-a-uiimage

will help you out. Here's a short example using it CGImageRef imageRef CGImageCreateWithImageInRect largeImage CGImage cropRect or use the UIImage wherever you like UIImageView setImage UIImage imageWithCGImage imageRef CGImageRelease imageRef share..

How to crop the UIImage?

http://stackoverflow.com/questions/2635371/how-to-crop-the-uiimage

improve this question Try something like this CGImageRef imageRef CGImageCreateWithImageInRect largeImage CGImage cropRect image UIImage imageWithCGImage imageRef CGImageRelease imageRef Note cropRect is smaller rectangle with middle part of the..

Cropping image captured by AVCaptureSession

http://stackoverflow.com/questions/5780580/cropping-image-captured-by-avcapturesession

share improve this question Hope this meets your requirements UIImage cropImage UIImage image to CGRect cropRect andScaleTo CGSize size UIGraphicsBeginImageContext size CGContextRef context UIGraphicsGetCurrentContext CGImageRef subImage.. size CGContextRef context UIGraphicsGetCurrentContext CGImageRef subImage CGImageCreateWithImageInRect image CGImage cropRect NSLog @ NSLog @ cropRect.origin.y f cropRect.origin.y NSLog @ cropRect.origin.x f cropRect.origin.x NSLog @ cropRect.size.width.. UIGraphicsGetCurrentContext CGImageRef subImage CGImageCreateWithImageInRect image CGImage cropRect NSLog @ NSLog @ cropRect.origin.y f cropRect.origin.y NSLog @ cropRect.origin.x f cropRect.origin.x NSLog @ cropRect.size.width f cropRect.size.width..

how to take a screen shot from a mapview

http://stackoverflow.com/questions/6517268/how-to-take-a-screen-shot-from-a-mapview

you can do it directly. Get the entire image and the crop the desired region. CGSize size self.view.bounds.size CGRect cropRect CGRectMake 40 40 80 80 Get the entire on screen map as Image UIGraphicsBeginImageContext size self.view.layer renderInContext.. UIGraphicsEndImageContext Crop the desired region CGImageRef imageRef CGImageCreateWithImageInRect mapImage.CGImage cropRect UIImage cropImage UIImage imageWithCGImage imageRef CGImageRelease imageRef Save the cropped image UIImageWriteToSavedPhotosAlbum..

Taking a picture from the camera and show it in a UIImageView

http://stackoverflow.com/questions/7820511/taking-a-picture-from-the-camera-and-show-it-in-a-uiimageview

the album you have to re crop it of course if editingInfo objectForKey UIImagePickerControllerCropRect nil CGRect cropRect editingInfo objectForKey UIImagePickerControllerCropRect CGRectValue CGImageRef imageRef CGImageCreateWithImageInRect originalimage.. UIImagePickerControllerCropRect CGRectValue CGImageRef imageRef CGImageCreateWithImageInRect originalimage CGImage cropRect chosenimage UIImage imageWithCGImage imageRef CGImageRelease imageRef else chosenimage originalimage The croprect info is..