So I need to recognize receipts from restaurants and pull the total out to operate on it. I only am concerned with the numbers on the receipt, so I am trying to figure out the best way to do this. I am currently just using processImage and getting all the text back and running it through a regex to pull out the numbers and then the total. But I want to figure out if I can use processTextField instead, since I am only concerned with a small amount of text and since processTextField is much cheaper. But I also don't want to loose to much accuracy and I can't specify a region easily, so it would still be best to process the whole picture. Any helpful suggestions?
Thanks for the help.