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2014/10/15 ¤U¤È 10:13:30
iphone Programming Glossary: rotatedimageiOS PNG Image rotated 90 degrees http://stackoverflow.com/questions/10307521/ios-png-image-rotated-90-degrees an otherwise identical image with different orientation like this CGImageRef imageRef sourceImage CGImage UIImage rotatedImage UIImage imageWithCGImage imageRef scale 1.0 orientation UIImageOrientationUp You may need to experiment with just what orientation..
UIImagePNGRepresentation … writeToFile is always landscape http://stackoverflow.com/questions/6358559/uiimagepngrepresentation-writetofile-is-always-landscape UIImagePickerController picker didFinishPickingMediaWithInfo NSDictionary info UIImage originalImage editedImage rotatedImage editedImage UIImage info objectForKey UIImagePickerControllerEditedImage originalImage UIImage info objectForKey UIImagePickerControllerOriginalImage.. originalImage UIImage info objectForKey UIImagePickerControllerOriginalImage if editedImage rotatedImage editedImage rotate UIImageOrientationRight else rotatedImage originalImage rotate UIImageOrientationRight NSString f @.. UIImagePickerControllerOriginalImage if editedImage rotatedImage editedImage rotate UIImageOrientationRight else rotatedImage originalImage rotate UIImageOrientationRight NSString f @ set this to your file name UIImagePNGRepresentation rotatedImage..
http://stackoverflow.com/questions/7191492/rotate-image-in-uiimageview 2 CGContextDrawImage bmContext CGRectMake 0 0 rotatedRect.size.width rotatedRect.size.height imgRef CGImageRef rotatedImage CGBitmapContextCreateImage bmContext CFRelease bmContext id rotatedImage autorelease return rotatedImage share improve..
UIImagePickerController editing allowed locks UIImage to max size of 320x320 http://stackoverflow.com/questions/724092/uiimagepickercontroller-editing-allowed-locks-uiimage-to-max-size-of-320x320 alloc init CGRect origRect editInfo objectForKey UIImagePickerControllerCropRect getValue origRect UIImage rotatedImage straightenAndScaleImage editInfo objectForKey UIImagePickerControllerOriginalImage scaleSize CGFloat scale scaleSize 1600.0f.. scale origRect.origin.y scale origRect.size.width scale origRect.size.height scale croppedImage self cropImage rotatedImage to origRect andScaleTo CGSizeMake 320 480 imageDescriptor setObject croppedImage forKey @ croppedImage pool drain else.. alloc init CGRect origRect editInfo objectForKey UIImagePickerControllerCropRect getValue origRect UIImage rotatedImage straightenAndScaleImage editInfo objectForKey UIImagePickerControllerOriginalImage scaleSize CGFloat scale scaleSize 640.0f..
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