Re: [tesseract-ocr] WebCam Text Recognition

[Artur Augusto]

Hi Vitor,

Did not had time to test your code, but I have a sample app that does exactly what you want:

https://github.com/arturaugusto/display_ocr

it's intended to recognise numbers using a 7 segments font traineddata, but you can use other trained data and change the whitelist chars.

Artur

2015-03-18 15:28 GMT-03:00 Vitor Guimarães <vitorgui...@gmail.com>:

Hi guys, I'm trying to do tesseract recognize text from webcam. This is my code, but these errors are occurring:

Error in pixGetDepth: pix not defined
Error in pixGetWpl: pix not defined
Error in pixGetYRes: pix not defined
Please call SetImage before attempting recognition.

~Please, sorry my bad english



import cv2
import tesseract

api = tesseract.TessBaseAPI()
api.Init(".", "eng", tesseract.OEM_DEFAULT)

while(True):
    ret, frame = cv2.VideoCapture(0).read()
   
    api.SetImage(tesseract.pixRead("gray"))
    print("OCR output:\n%s" %api.GetUTF8Text());           
   
    cv2.imshow('Frame', frame)                                        
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

api.End()
cv2.VideoCapture(0).release()                                       
cv2.destroyAllWindows()    

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