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POhow to handle Image rotation issue in IOS image cropping
 

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  1. POhow to handle Image rotation issue in IOS image cropping
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    <p>I am working on camera related app.Here I am taking image from camera and need to crop it and later fix that to image view.For cropping the image I am using OpenGL.My problem is I am after cropping the image is getting rotated 180 degrees.But this is not happening all the time.Some times I am getting the original image itself.</p> <pre><code>-(void)showResult { NSLog(@"showResult called" ); UIImage *imageCrop; float scaleCrop; if (_sourceImage.size.width &gt;= IMAGEWIDTH) { scaleCrop = IMAGEWIDTH / _sourceImage.size.width; imageCrop = [ImageCropViewController scaleImage:_sourceImage with:CGSizeMake(_sourceImage.size.width*scaleCrop, _sourceImage.size.height*scaleCrop)]; } else { scaleCrop = 1; imageCrop = _sourceImage; } float scale = _sourceImage.size.width / resizeImage.size.width * 2; IplImage *iplImage = [ImageCropViewController CreateIplImageFromUIImage:imageCrop] ; Quadrilateral rectan; rectan.point[0].x = _touchLayer.rectan.pointA.x*scale*scaleCrop; rectan.point[0].y = _touchLayer.rectan.pointA.y*scale*scaleCrop; rectan.point[1].x = _touchLayer.rectan.pointB.x*scale*scaleCrop; rectan.point[1].y = _touchLayer.rectan.pointB.y*scale*scaleCrop; rectan.point[2].x = _touchLayer.rectan.pointC.x*scale*scaleCrop; rectan.point[2].y = _touchLayer.rectan.pointC.y*scale*scaleCrop; rectan.point[3].x = _touchLayer.rectan.pointD.x*scale*scaleCrop; rectan.point[3].y = _touchLayer.rectan.pointD.y*scale*scaleCrop; IplImage* dest = cropDoc2(iplImage,rectan); IplImage *image = cvCreateImage(cvGetSize(dest), IPL_DEPTH_8U, dest-&gt;nChannels); cvCvtColor(dest, image, CV_BGR2RGB); cvReleaseImage(&amp;dest); tempImage = [ImageCropViewController UIImageFromIplImage:image withImageOrientation:_sourceImage.imageOrientation]; [self crop:tempImage]; cvReleaseImage(&amp;image); } </code></pre> <p>After that the below method is called</p> <pre><code>+ (UIImage *)UIImageFromIplImage:(IplImage *)image withImageOrientation:(UIImageOrientation)orientation { NSLog(@"UIImageFromIplImage called" ); CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB(); NSData *data = [NSData dataWithBytes:image-&gt;imageData length:image-&gt;imageSize]; CGDataProviderRef provider = CGDataProviderCreateWithCFData((__bridge CFDataRef)data); CGImageRef imageRef = CGImageCreate(image-&gt;width, image-&gt;height, image-&gt;depth, image-&gt;depth * image-&gt;nChannels, image-&gt;widthStep, colorSpace, kCGImageAlphaNone|kCGBitmapByteOrderDefault, provider, NULL, false, kCGRenderingIntentDefault); UIImage *ret = [UIImage imageWithCGImage:imageRef scale:1 orientation:orientation]; CGImageRelease(imageRef); CGDataProviderRelease(provider); CGColorSpaceRelease(colorSpace); return ret; } </code></pre> <p>Then I am rotating the Image as per my requirement</p> <pre><code>-(void)crop:(UIImage*)image { NSLog(@"crop called" ); //Adjust the image size, to scale the image to 1013 of width float targetWidth = 1009.0f; float scale = targetWidth / image.size.width; float scaleheight = image.size.height * scale; UIImage *imageToSent = [ImageCropViewController scaleImage:image with:CGSizeMake(targetWidth, scaleheight)]; if([UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationLandscapeLeft) { NSLog(@"###########Image orientation is UIInterfaceOrientationLandscapeLeft###########"); imageToSent = [[UIImage alloc] initWithCGImage:imageToSent.CGImage scale:1.0f orientation:UIImageOrientationDown]; } NSData *imageData = UIImageJPEGRepresentation(imageToSent,0.75); NSDate *now = [NSDate dateWithTimeIntervalSinceNow:0]; NSString *caldate = [now description]; appDelegate.imagefilePath= [NSString stringWithFormat:@"%@/%@.jpg", DOCUMENTS_FOLDER,caldate]; [imageData writeToFile:appDelegate.imagefilePath atomically:YES]; appDelegate.cropimage=imageToSent; } </code></pre> <p>I am not getting where it was gone wrong.It is killing my time.Please help me.</p> <p>Thanks in advance</p>
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    1. COremove this if and try if([UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationLandscapeLeft) { Why u used this?
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