That way you would be able to crop, resize, and change the appearance of the photo a bit, and still be able to recover the wallet, as the deep learning model would still generate the correct word for each photo.
And then you also need to back up your deep learning model, and hope it doesn't make any mistakes when identifying your pictures.Problem is how to make something obvious and hidden in the same time... maybe making something like QR code artwork and only small section would work for scanning 
If your goal is to have a picture on your wall which can somehow be used to recover your wallet, then the safest way to do this would be to simply write your seed phrase (encrypted, if you like) around the edge and then put it inside a frame which covers your writing.Every additional suggestion on top of the original idea is simply adding layers upon layers of complexity without actually adding any more security. The most likely outcome from one of these complex ideas is that you lock yourself out of your wallet by mistake.