2014/10/15 下午 10:10:11

iphone Programming Glossary: imageorientation

http://stackoverflow.com/questions/10307521/ios-png-image-rotated-90-degrees

iphone objective c ios png exif share improve this question If you're having trouble due to the existing image imageOrientation property you can construct an otherwise identical image with different orientation like this CGImageRef imageRef sourceImage..

iOS Image Orientation has Strange Behavior

http://stackoverflow.com/questions/10600613/ios-image-orientation-has-strange-behavior

should be rotated I can't figure out how to rotate the image in memory ideally I would prefer to just wipe away that imageOrientation flag all together. Here's something else that has been baffling me as well... When I take the photo the imageOrientation.. flag all together. Here's something else that has been baffling me as well... When I take the photo the imageOrientation is set to 3. My workaround code is smart enough to realize this and flip it so the user never notices. Additionally my code.. pngdata UIImageWriteToSavedPhotosAlbum img nil nil nil When I load this newly saved image into my app the imageOrientation is 0 exactly what I want to see and my rotation workaround doesn't even need to run note when loading images from the internet..

Resizing UIimages pulled from the Camera also ROTATES the UIimage?

http://stackoverflow.com/questions/1260249/resizing-uiimages-pulled-from-the-camera-also-rotates-the-uiimage

uiimage uiimagepickercontroller share improve this question The reason your code doesn't work is because the imageOrientation on the code that you have is not being taken into account. Specifically if the imageOrientation is right left then you need.. work is because the imageOrientation on the code that you have is not being taken into account. Specifically if the imageOrientation is right left then you need to both rotate the image and swap width height. Here is some code to do this UIImage imageByScalingToSize.. imageRef if bitmapInfo kCGImageAlphaNone bitmapInfo kCGImageAlphaNoneSkipLast CGContextRef bitmap if sourceImage.imageOrientation UIImageOrientationUp sourceImage.imageOrientation UIImageOrientationDown bitmap CGBitmapContextCreate NULL targetWidth targetHeight..

Force UIImagePickerController to take photo in portrait orientation/dimensions iOS

http://stackoverflow.com/questions/14484816/force-uiimagepickercontroller-to-take-photo-in-portrait-orientation-dimensions-i

iphone xcode orientation uiimagepickercontroller share improve this question The imageOrientation flag is set on the UIImage depending on which way up the camera is being held when the picture is taken. This is a read.. Assuming you have an imageView enclosed inside a same sized view... void imagePickerImage UIImage image if image.imageOrientation UIImageOrientationUp self.imageView.bounds CGRectMake 0 0 self.view.bounds.size.height self.view.bounds.size.width self.imageView.transform.. self.view.bounds.size.width self.imageView.transform CGAffineTransformMakeRotation M_PI 2 else if image.imageOrientation UIImageOrientationDown self.imageView.bounds CGRectMake 0 0 self.view.bounds.size.height self.view.bounds.size.width self.imageView.transform..

How use CGImageCreateWithImageInRect for iPhone 4 (HD)?

http://stackoverflow.com/questions/3150364/how-use-cgimagecreatewithimageinrect-for-iphone-4-hd

imageWithCGImage scale orientation Change it to UIImage imageWithCGImage image scale self.scale orientation self. imageOrientation and it should work just fine. this is assuming this is a category on UIImage which it looks like it is share improve this..

iPhone: How do I get the file path of an image saved with UIImageWriteToSavedPhotosAlbum()?

http://stackoverflow.com/questions/4457904/iphone-how-do-i-get-the-file-path-of-an-image-saved-with-uiimagewritetosavedpho

image to camera roll library writeImageToSavedPhotosAlbum viewImage CGImage orientation ALAssetOrientation viewImage imageOrientation completionBlock ^ NSURL assetURL NSError error if error NSLog @ error else NSLog @ url @ assetURL library release And..

iOS UIImagePickerController result image orientation after upload

http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload

viewing on the server says otherwise. iphone cocoa touch ios share improve this question A UIImage has a property imageOrientation which instructs the UIImageView and other UIImage consumers to rotate the raw image data. There's a good chance that this.. @implementation UIImage fixOrientation UIImage fixOrientation No op if the orientation is already correct if self.imageOrientation UIImageOrientationUp return self We need to calculate the proper transformation to make the image upright. We do it in 2.. Rotate if Left Right Down and then flip if Mirrored. CGAffineTransform transform CGAffineTransformIdentity switch self.imageOrientation case UIImageOrientationDown case UIImageOrientationDownMirrored transform CGAffineTransformTranslate transform self.size.width..

image clicked from iPhone in Portrait mode gets rotated by 90 degree

http://stackoverflow.com/questions/5973105/image-clicked-from-iphone-in-portrait-mode-gets-rotated-by-90-degree

UIImage from info dictionary for the key UIImagePickerControllerOriginalImage You can see the image orientation by imageOrientation property. If is not like you want just rotate your image before you upload it. imageOrientation The orientation of the receiver.. image orientation by imageOrientation property. If is not like you want just rotate your image before you upload it. imageOrientation The orientation of the receiver 䏭 image. read only @property nonatomic readonly UIImageOrientation imageOrientation Discussion.. imageOrientation The orientation of the receiver 䏭 image. read only @property nonatomic readonly UIImageOrientation imageOrientation Discussion Image orientation affects the way the image data is displayed when drawn. By default images are displayed in..

How to properly crop an image taken on iPhone 4G (with EXIF rotation data)?

http://stackoverflow.com/questions/7203847/how-to-properly-crop-an-image-taken-on-iphone-4g-with-exif-rotation-data

when it comes to iPhone 4G because iPhone 4G embeds rotation EXIF data into its JPEGs. This data is exposed via the imageOrientation property new in iOS 4. The correct way to crop a region with images that have EXIF rotation information is to use this dude's.. should call this UIImage resultImage UIImage alloc initWithCGImage resultImageRef scale 1.0 orientation originalImage.imageOrientation autorelease The second call embeds rotation information into the UIImage from the original image. Unfortunately that call..