我在用tesseract和python。它可以识别几乎所有带有2个或更多数字或字符的图像
我不想用“仅数字”来训练tesseract,因为我也可以识别字符。
但是tessearact无法识别附件的图像
答案 0 :(得分:0)
我认为问题是由粗体造成的。 删除该数字后,就可以正确识别该数字。
如果您有兴趣,这里是代码:
import cv2
import numpy as np
import pytesseract
def discard(image):
image = np.uint8(image)
_, im_label, stts, _ = cv2.connectedComponentsWithStats(image, connectivity=4)
msk1 = np.isin(im_label, np.where(stts[:, cv2.CC_STAT_WIDTH] > 100)[0])
msk2 = np.isin(im_label, np.where(stts[:, cv2.CC_STAT_HEIGHT] > 100)[0])
image[(msk1 | msk2)] = 0
return image
img = cv2.imread("check_img.jpg", 0)
# Binarization
thresh = 255 - img
ret, thresh = cv2.threshold(thresh, 5, 255, cv2.THRESH_BINARY)
# removing long connected-components
thresh = discard(thresh)
# remove noise
thresh = cv2.medianBlur(thresh, 3)
# invert again
thresh = 255 - thresh
# showing the image
cv2.imshow("img", thresh)
# Using Tesseract OCR
custom_config = r'--oem 3 --psm 6'
text = pytesseract.image_to_string(thresh, config=custom_config)
print(text)
cv2.waitKey(0)