uiimagepickercontroller

I'm writing an app that will offer OCR of an image captured by the iPhone camera. I want to test the image before I perform the OCR analysis to see if there is sufficient lighting. Anyone have any ideas? The most flexible way is to generate a histogram for the red green and blue color channels, and then use it to determine the average lightness, median lightness, black/white points, contrast or other custom functions. Use CGBitmapContextCreate to create a bitmap context backed by a buffer of your creation, draw your image into it, then loop through each pixel in the buffer to populate the

I'm building an app that has several different sections to it, all of which are pretty image-heavy. It ties in with my client's website and they're a "high-design" type outfit. One piece of the app is images uploaded from the camera or the library, and a tableview that shows a grid of thumbnails. Pretty reliably, when I'm dealing with the camera version of UIImagePickerControl, I get hit for low memory. If I bounce around that part of the app for a while, I occasionally and non-repeatably crash with "status:10 (SIGBUS)" in the debugger. On low memory warning, my root view controller for that

In order to prevent lagging in my app, I'm trying to compress images larger than 1 MB (mostly for pics taken from iphone's normal camera. UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage]; NSData *imageSize = UIImageJPEGRepresentation(image, 1); NSLog(@"original size %u", [imageSize length]); UIImage *image2 = [UIImage imageWithData:UIImageJPEGRepresentation(image, 0)]; NSData *newImageSize = UIImageJPEGRepresentation(image2, 1); NSLog(@"new size %u", [newImageSize length]); UIImage *image3 = [UIImage imageWithData:UIImageJPEGRepresentation(image2, 0)]; NSData

Does anyone know how to get the selected image name (the one from photo gallery) after presenting an UIImagePickerController? With the help of ALAsset you can able to achieve this. Step 1: Get the Asset for the selected Image from the UIImagePicker Step 2: Get the ALAssetRepresentation for that Asset . Step 3: ALAssetRepresentation class has a property called fileName - (NSString *)filename Returns a string representing the filename of the representation on disk. This Sample Code will Helps you... - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:

I have made an app that implements the iPhone's camera. When the user finishes picking their image, the status bar reappears! How would I make sure that the status bar stays hidden? Here is my code: -(IBAction)pickImage:(id)sender { UIImagePickerController *picker = [[UIImagePickerController alloc] init]; picker.delegate = self; picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; [self presentModalViewController:picker animated:YES]; } - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { [picker