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2014/10/15 ¤U¤È 10:10:12
iphone Programming Glossary: imagewithcgimageResizing UIimages pulled from the Camera also ROTATES the UIimage? http://stackoverflow.com/questions/1260249/resizing-uiimages-pulled-from-the-camera-also-rotates-the-uiimage 0 0 width height imageRef CGImageRef ref CGBitmapContextCreateImage bitmap UIImage result UIImage imageWithCGImage ref CGContextRelease bitmap CGImageRelease ref return result QUESTION How do I RESIZE a UIImage pulled.. targetHeight imageRef CGImageRef ref CGBitmapContextCreateImage bitmap UIImage newImage UIImage imageWithCGImage ref CGContextRelease bitmap CGImageRelease ref return newImage This will resize your image and rotate..
http://stackoverflow.com/questions/1298867/convert-image-to-grayscale context CGContextRelease context CGColorSpaceRelease colorSpace UIImage resultUIImage UIImage imageWithCGImage image CGImageRelease image free m_imageData make sure the data will be released by giving it to an autoreleased..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees targetHeight imageRef CGImageRef ref CGBitmapContextCreateImage bitmap UIImage newImage UIImage imageWithCGImage ref CGContextRelease bitmap CGImageRelease ref return newImage iphone uikit uiimage core graphics..
Getting thumbnail from a video url or data in IPhone SDK http://stackoverflow.com/questions/1347562/getting-thumbnail-from-a-video-url-or-data-in-iphone-sdk NSLog @ couldn't generate thumbnail error @ error button setImage UIImage imageWithCGImage im forState UIControlStateNormal thumbImg UIImage imageWithCGImage im retain generator release CGSize.. error button setImage UIImage imageWithCGImage im forState UIControlStateNormal thumbImg UIImage imageWithCGImage im retain generator release CGSize maxSize CGSizeMake 320 180 generator.maximumSize maxSize generator..
http://stackoverflow.com/questions/158914/cropping-a-uiimage
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how context CGContextRelease context CGColorSpaceRelease colorSpace img release return UIImage imageWithCGImage imageMasked Don't forget that you'll need to get the QuartzCore framework in there for this to work...
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone objectAtIndex indexPath.row i am accessing the thumbnail here cell.imageView setImage UIImage imageWithCGImage asset thumbnail cell.textLabel setText NSString stringWithFormat @ Photo d indexPath.row 1 return cell.. myasset defaultRepresentation CGImageRef iref rep fullResolutionImage if iref largeimage UIImage imageWithCGImage iref largeimage retain ALAssetsLibraryAccessFailureBlock failureblock ^ NSError myerror NSLog @..
http://stackoverflow.com/questions/4847163/round-two-corners-in-uiview CGContextRelease context convert the finished resized image to a UIImage UIImage theImage UIImage imageWithCGImage bitmapContext image is retained by the property setting above so we can release the original CGImageRelease..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload
http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview CGImageRef maskedImageRef CGImageCreateWithMask image CGImage mask UIImage maskedImage UIImage imageWithCGImage maskedImageRef CGImageRelease mask CGImageRelease maskedImageRef returns new image with mask applied..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud originalImage CGDataProviderRelease imageDataProvider UIImage decompressedImage UIImage imageWithCGImage image CGImageRelease image The trade off with this code is that the decoded image uses more memory but..
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 imageRef alphaInfo CGContextDrawImage bitmap CGRectMake 0 0 width height imageRef CGImageRef ref CGBitmapContextCreateImage bitmap UIImage result UIImage imageWithCGImage ref CGContextRelease bitmap CGImageRelease ref return result QUESTION How do I RESIZE a UIImage pulled from the Camera WITHOUT rotating the pixels iphone uiimageview.. 180. CGContextDrawImage bitmap CGRectMake 0 0 targetWidth targetHeight imageRef CGImageRef ref CGBitmapContextCreateImage bitmap UIImage newImage UIImage imageWithCGImage ref CGContextRelease bitmap CGImageRelease ref return newImage This will resize your image and rotate it to the correct orientation. If you need the definition..
http://stackoverflow.com/questions/1298867/convert-image-to-grayscale CGImageRef image CGBitmapContextCreateImage context CGContextRelease context CGColorSpaceRelease colorSpace UIImage resultUIImage UIImage imageWithCGImage image CGImageRelease image free m_imageData make sure the data will be released by giving it to an autoreleased NSData NSData dataWithBytesNoCopy result length..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees CGContextDrawImage bitmap CGRectMake 0 0 targetWidth targetHeight imageRef CGImageRef ref CGBitmapContextCreateImage bitmap UIImage newImage UIImage imageWithCGImage ref CGContextRelease bitmap CGImageRelease ref return newImage iphone uikit uiimage core graphics rotation share improve this question What about something..
Getting thumbnail from a video url or data in IPhone SDK http://stackoverflow.com/questions/1347562/getting-thumbnail-from-a-video-url-or-data-in-iphone-sdk result NSError error if result AVAssetImageGeneratorSucceeded NSLog @ couldn't generate thumbnail error @ error button setImage UIImage imageWithCGImage im forState UIControlStateNormal thumbImg UIImage imageWithCGImage im retain generator release CGSize maxSize CGSizeMake 320 180 generator.maximumSize maxSize generator.. NSLog @ couldn't generate thumbnail error @ error button setImage UIImage imageWithCGImage im forState UIControlStateNormal thumbImg UIImage imageWithCGImage im retain generator release CGSize maxSize CGSizeMake 320 180 generator.maximumSize maxSize generator generateCGImagesAsynchronouslyForTimes NSArray arrayWithObject..
http://stackoverflow.com/questions/158914/cropping-a-uiimage
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone here 'asset' represents the ALAsset object asset assets objectAtIndex indexPath.row i am accessing the thumbnail here cell.imageView setImage UIImage imageWithCGImage asset thumbnail cell.textLabel setText NSString stringWithFormat @ Photo d indexPath.row 1 return cell iphone image url share improve this question The API.. resultblock ^ ALAsset myasset ALAssetRepresentation rep myasset defaultRepresentation CGImageRef iref rep fullResolutionImage if iref largeimage UIImage imageWithCGImage iref largeimage retain ALAssetsLibraryAccessFailureBlock failureblock ^ NSError myerror NSLog @ booya cant get image @ myerror localizedDescription if mediaurl..
http://stackoverflow.com/questions/4847163/round-two-corners-in-uiview CGImageRef bitmapContext CGBitmapContextCreateImage context CGContextRelease context convert the finished resized image to a UIImage UIImage theImage UIImage imageWithCGImage bitmapContext image is retained by the property setting above so we can release the original CGImageRelease bitmapContext return the image return theImage Now you..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload
http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview maskRef CGImageGetDataProvider maskRef NULL false CGImageRef maskedImageRef CGImageCreateWithMask image CGImage mask UIImage maskedImage UIImage imageWithCGImage maskedImageRef CGImageRelease mask CGImageRelease maskedImageRef returns new image with mask applied return maskedImage After you provided your code I have added..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud
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 bitmap CGRectMake 0 0 width height imageRef CGImageRef ref CGBitmapContextCreateImage bitmap UIImage result UIImage imageWithCGImage ref CGContextRelease bitmap CGImageRelease ref return result QUESTION How do I RESIZE a UIImage pulled from the Camera WITHOUT.. 0 0 targetWidth targetHeight imageRef CGImageRef ref CGBitmapContextCreateImage bitmap UIImage newImage UIImage imageWithCGImage ref CGContextRelease bitmap CGImageRelease ref return newImage This will resize your image and rotate it to the correct..
Can I edit the pixels of the UIImage's property CGImage http://stackoverflow.com/questions/1281210/can-i-edit-the-pixels-of-the-uiimages-property-cgimage unsigned char ppxl m_Bits ... do something... CGImageRef imRef CGBitmapContextCreateImage mContext return UIImage imageWithCGImage imRef And preProcess and postProcess are called just once. iphone cocoa cocoa touch uikit core graphics share improve..
http://stackoverflow.com/questions/1298867/convert-image-to-grayscale context CGContextRelease context CGColorSpaceRelease colorSpace UIImage resultUIImage UIImage imageWithCGImage image CGImageRelease image free m_imageData make sure the data will be released by giving it to an autoreleased NSData NSData..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees 0 0 targetWidth targetHeight imageRef CGImageRef ref CGBitmapContextCreateImage bitmap UIImage newImage UIImage imageWithCGImage ref CGContextRelease bitmap CGImageRelease ref return newImage iphone uikit uiimage core graphics rotation share improve..
Getting thumbnail from a video url or data in IPhone SDK http://stackoverflow.com/questions/1347562/getting-thumbnail-from-a-video-url-or-data-in-iphone-sdk if result AVAssetImageGeneratorSucceeded NSLog @ couldn't generate thumbnail error @ error button setImage UIImage imageWithCGImage im forState UIControlStateNormal thumbImg UIImage imageWithCGImage im retain generator release CGSize maxSize CGSizeMake.. thumbnail error @ error button setImage UIImage imageWithCGImage im forState UIControlStateNormal thumbImg UIImage imageWithCGImage im retain generator release CGSize maxSize CGSizeMake 320 180 generator.maximumSize maxSize generator generateCGImagesAsynchronouslyForTimes..
Blur an image of specific part (rectangular, circular)? http://stackoverflow.com/questions/14107979/blur-an-image-of-specific-part-rectangular-circular toRect CGRect rect CGImageRef imageRef CGImageCreateWithImageInRect imageToCrop CGImage rect UIImage cropped UIImage imageWithCGImage imageRef CGImageRelease imageRef return cropped Method 2 Merge the two Images #pragma mark Marge two Images UIImage addImageToImage..
http://stackoverflow.com/questions/158914/cropping-a-uiimage
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how CGBitmapContextCreateImage context CGContextRelease context CGColorSpaceRelease colorSpace img release return UIImage imageWithCGImage imageMasked Don't forget that you'll need to get the QuartzCore framework in there for this to work. share improve this..
http://stackoverflow.com/questions/262156/uiimage-rounded-corners CGImageRelease mainViewContentBitmapContext convert the finished resized image to a UIImage UIImage theImage UIImage imageWithCGImage resizedImage image is retained by the property setting above so we can release the original CGImageRelease resizedImage..
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone object asset assets objectAtIndex indexPath.row i am accessing the thumbnail here cell.imageView setImage UIImage imageWithCGImage asset thumbnail cell.textLabel setText NSString stringWithFormat @ Photo d indexPath.row 1 return cell iphone image url.. rep myasset defaultRepresentation CGImageRef iref rep fullResolutionImage if iref largeimage UIImage imageWithCGImage iref largeimage retain ALAssetsLibraryAccessFailureBlock failureblock ^ NSError myerror NSLog @ booya cant get image..
http://stackoverflow.com/questions/4847163/round-two-corners-in-uiview context CGContextRelease context convert the finished resized image to a UIImage UIImage theImage UIImage imageWithCGImage bitmapContext image is retained by the property setting above so we can release the original CGImageRelease bitmapContext..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload
http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview maskRef NULL false CGImageRef maskedImageRef CGImageCreateWithMask image CGImage mask UIImage maskedImage UIImage imageWithCGImage maskedImageRef CGImageRelease mask CGImageRelease maskedImageRef returns new image with mask applied return maskedImage..
How to make one color transparent on a UIImage? http://stackoverflow.com/questions/633722/how-to-make-one-color-transparent-on-a-uiimage 1.0 2.0 1.0 1.0 1.0 1.0 CGImageRef New CGImageCreateWithMaskingColors ref1 colorMasking UIImage resultedimage UIImage imageWithCGImage New CGImageRef createMask UIImage temp CGImageRef ref temp.CGImage int mWidth CGImageGetWidth ref int mHeight CGImageGetHeight..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud CGImageGetRenderingIntent originalImage CGDataProviderRelease imageDataProvider UIImage decompressedImage UIImage imageWithCGImage image CGImageRelease image The trade off with this code is that the decoded image uses more memory but rendering is faster...
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