so 25. 6. 2022 o 8:15 Hervé <[email protected]> napísal(a): > Hi > I just tried some, without real success > > Please be specific: what did you try and what was the result?
> could I learn digits from pictures ? maybe this font is not well recognized > Any training is useless if the failure is at the image preprocessing stage. > thanks > > Le vendredi 24 juin 2022 à 17:12:44 UTC+2, zdenop a écrit : > >> Did try to implement suggestion from documentation? >> https://github.com/tesseract-ocr/tessdoc/blob/main/ImproveQuality.md >> >> >> Zdenko >> >> >> pi 24. 6. 2022 o 16:59 Hervé <[email protected]> napísal(a): >> >>> Hi, I need some help to make tesseract-OCR recognize digits : can't >>> achieve to make this work with >>> >>> >>> https://img.super-h.fr/images/2022/06/24/9a03414616bc4c6bd6e4bdb78e9d6783.jpg >>> >>> here is my code : >>> >>> >>> >>> import cv2 >>> import pytesseract >>> >>> pytesseract.pytesseract.tesseract_cmd ="C:\\Program >>> Files\\Tesseract-OCR\\tesseract.exe" >>> >>> def process_image(img): >>> #cv2.imshow('Img',img) >>> #cv2.waitKey(0) >>> >>> ### passage en niveau de gris >>> gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY) >>> #cv2.imshow('Img',gray) >>> #v2.waitKey(0) >>> >>> ###analyse de l'image >>> valeur = pytesseract.image_to_string(gray) >>> print(valeur) >>> >>> ##passage en noir et blanc >>> (thresh, im_bw) = cv2.threshold(gray, 128, 255, cv2.THRESH_BINARY | >>> cv2.THRESH_OTSU) >>> im_bw = cv2.bitwise_not(im_bw) >>> #cv2.imshow('Img',im_bw) >>> #cv2.waitKey(0) >>> # cv2.imwrite('ph.png',im_bw) >>> print(pytesseract.image_to_string(im_bw)) >>> >>> >>> ###ouverture de l'image >>> img = cv2.imread('ocr5.png') >>> # cv2.imshow('Img',imgcoupee) >>> >>> >>> ###on rogne >>> imgcoupee = img[1056:1517,950:1862] >>> #img = cv2.imwrite('ocrcoupee.png',imgcoupee) >>> # cv2.imshow('Img',imgcoupee) >>> >>> ### decoupage de la partie correspondant au PH >>> ph= img[516:625, 616:815] >>> >>> #cv2.imwrite('pH.jpg', image_pH) >>> >>> ### partie chlore >>> cl = img[516:625, 882:1056] >>> >>> ### partie dÃ:copyright:faut flow >>> #flow= img[1302:1398,1054:1400] >>> >>> ### process >>> #process_image(imgcoupee) >>> process_image(ph) >>> process_image(cl) >>> #process_image(flow) >>> >>> digits seems to be clear enough, but it does'nt work, if someone could >>> help me ? >>> >>> thanks ! >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "tesseract-ocr" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/tesseract-ocr/a05712a5-e6ed-411f-a072-e389ea7095efn%40googlegroups.com >>> <https://groups.google.com/d/msgid/tesseract-ocr/a05712a5-e6ed-411f-a072-e389ea7095efn%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to the Google Groups > "tesseract-ocr" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/tesseract-ocr/4ed81a73-0a82-426e-a35e-ba52c5ac71f1n%40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/4ed81a73-0a82-426e-a35e-ba52c5ac71f1n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/CAJbzG8xyoabwucKcHx6U%2BA-3RPR0oL3zQ07DxtpfRUL-oCpH0g%40mail.gmail.com.
