OCR services can be used on your photos, but they are not fully automated yet. Here are some links to OCR tools you can experiment with.
Microsoft Cognitive Services: Computer Vision API – This is the one I demonstrate in the book. You can scroll down the page to “read text in images” and you’ll see an opportunity to upload a file. The site will display any text it finds in the image.
Adobe Acrobat DC – OCR is now included in Adobe Acrobat. It’s pretty cool for making edits to a PDF, but it does not do a great job stringing text together logically.