Created
July 31, 2012 04:29
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Exifを付与し、/tmpに画像を保存するサンプルコード
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- (void)setExifInfo:(UIImage *)image { | |
CGImageSourceRef cgImage = CGImageSourceCreateWithData((__bridge CFDataRef) UIImageJPEGRepresentation(image, 1), NULL); | |
NSMutableDictionary *exifDict = [[NSMutableDictionary alloc] init]; | |
NSDateFormatter *outputFormatter = [[NSDateFormatter alloc] init]; | |
[outputFormatter setDateFormat:@"yyyy:MM:dd HH:mm:ss"]; | |
NSString *original = [outputFormatter stringFromDate:[NSDate date]]; | |
[exifDict setObject:original forKey:(__bridge NSString *) kCGImagePropertyExifDateTimeOriginal]; | |
[exifDict setObject:original forKey:(__bridge NSString *) kCGImagePropertyExifDateTimeDigitized]; | |
NSMutableData *imageData = [[NSMutableData alloc] init]; | |
CGImageDestinationRef destination = CGImageDestinationCreateWithData((__bridge CFMutableDataRef) imageData, CGImageSourceGetType(cgImage), 1, nil); | |
CGImageDestinationAddImageFromSource(destination, cgImage, 0, (__bridge CFDictionaryRef) [NSDictionary dictionaryWithObjectsAndKeys: | |
exifDict, (__bridge NSString *) kCGImagePropertyExifDictionary, nil]); | |
CGImageDestinationFinalize(destination); | |
NSString *exportPath = [NSString stringWithFormat:@"%@%@", NSTemporaryDirectory(), @"exportWithExif.jpg"]; | |
[imageData writeToFile:exportPath atomically:YES]; | |
CFRelease(cgImage); | |
CFRelease(destination); | |
} |
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