30 seconds? Really? I'm surprised. On our development phones it took 10 - 15 seconds.
Although OCR is something we're looking at it on the phone, although you probably wouldn't be happy with how long you'll have to wait for THAT to complete.
From the article you submitted: "The application then takes around thirty seconds to process the image, correcting for any issues with lighting, color, and even perspective (if you initially took a photo of your document at an angle, the final image will look as if it was taken front-on)."
Although OCR is something we're looking at it on the phone, although you probably wouldn't be happy with how long you'll have to wait for THAT to complete.