I was able to identify squares from a images using VNDetectRectanglesRequest. Now I want those rectangles to store as separate images (UIImage or cgImage). Below is what I tried.
let rectanglesDetection = VNDetectRectanglesRequest { request, error in
rectangles = request.results as! [VNRectangleObservation]
rectangles.sort{$0.boundingBox.origin.y > $1.boundingBox.origin.y}
for rectangle in rectangles {
let rect = rectangle.boundingBox
let imageRef = cgImage.cropping(to: rect)
let image = UIImage(cgImage: imageRef!, scale: image!.scale, orientation: image!.imageOrientation)
checkBoxImages.append(image)
}
Can anybody point out what's wrong or what should be the best approach?
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