init(imageAt:pixelsWide:pixelsHigh:pixelFormatType:options:)

Construct image feature value from an image on disk. Orientation is read from Exif if avaiable

convenience init(imageAt url: URL, pixelsWide: Int, pixelsHigh: Int, pixelFormatType: OSType, options: [MLFeatureValue.ImageOption : Any]? = nil) throws