Top "Ocr" questions

Optical Character Recognition, usually abbreviated to OCR, is the mechanical or electronic translation of scanned images of handwritten, typewritten or printed text into machine-encoded text.

(-215:Assertion failed) !_src.empty() in function 'cv::cvtColor'

I am trying to recognize text from an image to then have the text outputted; however, this error spits out: …

python ocr tesseract cv2 python-tesseract
Getting text from image on ios (image processing)

I am thinking of making an application that requires extracting TEXT from an image. I haven't done any thing similar …

ios objective-c image image-processing ocr
How to perform Auto crop for document Recognize image using camera?

I want to make a an application like a cam scanner for cropping a document. But I need same functionality …

android opencv ocr crop
Which library to use to extract text from images?

I am writing a program that when given an image of a low level math problem (e.g. 98*13) should be …

c# ocr text-recognition
Detecting the National ID card and getting the details

I am trying to detect the National ID of the below type and get the details of it, For example …

opencv image-processing computer-vision ocr card.io
How do I segment a document using Tesseract then output the resulting bounding boxes and labels

I'm trying to get Tesseract to output a file with labelled bounding boxes that result from page segmentation (pre OCR). …

ocr tesseract hocr
PDF Data and Table Scraping to Excel

I'm trying to figure out a good way to increase the productivity of my data entry job. What I am …

excel pdf ocr screen-scraping pdf-parsing
Why Tesseract OCR library (iOS) cannot recognize text at all?

I'm trying to use Tesseract OCR library in my iOS application. I downloaded tesseract-ios library from github and when I …

ios objective-c ocr tesseract
Using Tesseract for handwriting recognition

I was just wondering how accurate can tesseract be for handwriting recognition if used with capital letters all in their …

android ocr tesseract handwriting
Which OCR Engine is better: Tesseract or OCRopus?

I have tried Tesseract with iPhone and assessed its accuracy to be 70% without image preprocessing. I also noticed that it …

ocr tesseract feature-extraction