I tried gray image, black and white, and I use custom_psm = r'--psm 7'
didn't try others parameters Le samedi 25 juin 2022 à 10:32:14 UTC+2, zdenop a écrit : > > > so 25. 6. 2022 o 8:15 Hervé <herve....@gmail.com> 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 <herve....@gmail.com> 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 tesseract-oc...@googlegroups.com. >>>> 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 tesseract-oc...@googlegroups.com. >> > 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 tesseract-ocr+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/eb2f2bdd-843d-4f11-83bb-d96e578ad94en%40googlegroups.com.
