CIImage, CIDetector - how to find other objects in images other than faces

Is it possible to find other objects in images without the need to integrate other third-party libraries, such as openCV, and write all the algorithms yourself.

i.e. if I wanted to find something in the image that looked like a door? or find something like the number 1 ... 9?

Is there any support to transfer a 2D image and a photo, and try iOS find this form in the photo file?

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Source: https://habr.com/ru/post/971720/


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