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POResize image in Iphone
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15653953
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2013-03-27T07:47:53.577
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2014-09-01T11:09:09.067
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Body
I am trying to resize image but its not working properly. i have an image width 320 and height 480 i want to resize it to width 1024 and height 1024. i am using this code to resize image <pre><code>- (UIImage *)resizeImageToSize:(CGSize)targetSize { UIImage *sourceImage = [self saveImage:0]; UIImage *newImage = nil; CGSize imageSize = sourceImage.size; CGFloat width = imageSize.width; CGFloat height = imageSize.height; CGFloat targetWidth = targetSize.width; CGFloat targetHeight = targetSize.height; CGFloat scaleFactor = 0.0; CGFloat scaledWidth = targetWidth; CGFloat scaledHeight = targetHeight; CGPoint thumbnailPoint = CGPointMake(0.0,0.0); if (CGSizeEqualToSize(imageSize, targetSize) == NO) { CGFloat widthFactor = targetWidth / width; CGFloat heightFactor = targetHeight / height; if (widthFactor < heightFactor) scaleFactor = widthFactor; else scaleFactor = heightFactor; scaledWidth = width * scaleFactor; scaledHeight = height * scaleFactor; // make image center aligned if (widthFactor < heightFactor) { thumbnailPoint.y = (targetHeight - scaledHeight) * 0.5; } else if (widthFactor > heightFactor) { thumbnailPoint.x = (targetWidth - scaledWidth) * 0.5; } } UIGraphicsBeginImageContext(targetSize); CGRect thumbnailRect = CGRectZero; thumbnailRect.origin = thumbnailPoint; thumbnailRect.size.width = scaledWidth; thumbnailRect.size.height = scaledHeight; [sourceImage drawInRect:thumbnailRect]; newImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); if(newImage == nil) NSLog(@"could not scale image"); return newImage ; } </code></pre> i am not getting image size what i want. this is what i get when resizing image from 320x480 to 1280x1024 Image size is increasing but the image is not. i want that car to be stretched over white background<img src="https://i.stack.imgur.com/64dkK.png" alt="enter image description here">.
Tags
<iphone><ios><objective-c><xcode>
Title
Resize image in Iphone
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