@stephanschulz as far as I can see I don't think you can. https://developer.apple.com/library/ios//documentation/CoreImage/Reference/CIDetector_Ref/index.html
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@stephanschulz as far as I can see I don't think you can. https://developer.apple.com/library/ios//documentation/CoreImage/Reference/CIDetector_Ref/index.html