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2014/10/15 ¤U¤È 10:10:12
iphone Programming Glossary: imagewithimageHow to programmatically change the hue of UIImage? http://stackoverflow.com/questions/11555071/how-to-programmatically-change-the-hue-of-uiimage varying the alpha but for true saturation other than 100 you will probably need a second round of drawing. UIImage imageWithImage UIImage source fixedHue CGFloat hue alpha CGFloat alpha Note the hue input ranges from 0.0 to 1.0 both red. Values outside.. developer.apple.com library mac #documentation graphicsimaging conceptual CoreImaging ci_tasks ci_tasks.html UIImage imageWithImage UIImage source rotatedByHue CGFloat deltaHueRadians Create a Core Image version of the image. CIImage sourceCore CIImage..
How can i add two uiimageview and save it to iphone photo gallery in iphone application development? http://stackoverflow.com/questions/12453913/how-can-i-add-two-uiimageview-and-save-it-to-iphone-photo-gallery-in-iphone-appl MyImage UIImage imageFromView UIView view UIImage imageFromView UIView view scaledToSize CGSize newSize UIImage imageWithImage UIImage image scaledToSize CGSize newSize void beginImageContextWithSize CGSize size UIImage croppedImage UIImage myImage.. self imageFromView view if view bounds .size.width newSize.width view bounds .size.height newSize.height image self imageWithImage image scaledToSize newSize return image UIImage imageWithImage UIImage image scaledToSize CGSize newSize self beginImageContextWithSize.. view bounds .size.height newSize.height image self imageWithImage image scaledToSize newSize return image UIImage imageWithImage UIImage image scaledToSize CGSize newSize self beginImageContextWithSize newSize image drawInRect CGRectMake 0 0 newSize.width..
Any code/library to scale down an UIImage? http://stackoverflow.com/questions/1573758/any-code-library-to-scale-down-an-uiimage this question to see if anyone has anything better faster. I just added the below to a category on UIimage . UIImage imageWithImage UIImage image scaledToSize CGSize newSize UIGraphicsBeginImageContext newSize image drawInRect CGRectMake 0 0 newSize.width..
The simplest way to resize an UIImage? http://stackoverflow.com/questions/2658738/the-simplest-way-to-resize-an-uiimage to one of the resizing options. Or you can use this utility method if you actually need to resize an image UIImage imageWithImage UIImage image scaledToSize CGSize newSize UIGraphicsBeginImageContext newSize In next line pass 0.0 to use the current device's..
How to resize the image programatically in objective-c in iphone http://stackoverflow.com/questions/4712329/how-to-resize-the-image-programatically-in-objective-c-in-iphone using Objective C iphone objective c image share improve this question Please find the following code. UIImage imageWithImage UIImage image convertToSize CGSize size UIGraphicsBeginImageContext size image drawInRect CGRectMake 0 0 size.width size.height..
What's the easiest way to resize/optimize an image size with the iPhone SDK? http://stackoverflow.com/questions/612131/whats-the-easiest-way-to-resize-optimize-an-image-size-with-the-iphone-sdk as answers to this question . I had suggested the technique described in this post with the relevant code UIImage imageWithImage UIImage image scaledToSize CGSize newSize UIGraphicsBeginImageContext newSize image drawInRect CGRectMake 0 0 newSize.width..
How to adjust a image size after using UIImagePickerController take a photo? http://stackoverflow.com/questions/6756665/how-to-adjust-a-image-size-after-using-uiimagepickercontroller-take-a-photo scale share improve this question UIImage resize Go thru this link . Thanks to Paul Lynch. UIImage imageWithImage UIImage image scaledToSize CGSize newSize UIGraphicsBeginImageContextWithOptions newSize NO 0.0 image drawInRect CGRectMake..
Resize UIImage by keeping Aspect ratio and width http://stackoverflow.com/questions/7645454/resize-uiimage-by-keeping-aspect-ratio-and-width want to scale to and don't care about the height you first have to calculate the scale factor of the height. UIImage imageWithImage UIImage sourceImage scaledToWidth float i_width float oldWidth sourceImage.size.width float scaleFactor i_width oldWidth..
Objective C Custom Lazy Load Images UITableView Cell http://stackoverflow.com/questions/9083454/objective-c-custom-lazy-load-images-uitableview-cell objectForKey NSString stringWithFormat @ Settings_SFCCovers @_ @ retina cell.cid cell.imageView setImage MVImage imageWithImage UIImage alloc initWithData thumb.data covertToWidth 58.0f covertToHeight 58.0f cell bringSubviewToFront cell.imageView superview.. thumb forKey NSString stringWithFormat @ Settings_SFCCovers @_ @ retina cell.cid cell.imageView setImage MVImage imageWithImage UIImage alloc initWithData thumb.data covertToWidth 58.0f covertToHeight 58.0f cell bringSubviewToFront cell.imageView.. @ Settings_SFCCovers @_ @ retina cell.cid dispatch_sync dispatch_get_main_queue ^ cell.imageView setImage MVImage imageWithImage UIImage alloc initWithData thumb.data covertToWidth 58.0f covertToHeight 58.0f cell bringSubviewToFront cell.imageView superview..
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