ocr - Eliminating Interferential Curve of Text in Images？ -


enter image description here

as can see,i have image of formulas

but has interferential curve,so how can remove it?

i tried erode , dilate failed.

you can remove lines using image inpainting. need make mask first. take @ this- http://docs.opencv.org/trunk/df/d3d/tutorial_py_inpainting.html

i tried 1 see- made rough mask

this code (python) helps make mask:

import cv2 import numpy np imgg=cv2.imread("your_image.png") flag = false def draw(event,x,y,flags,param):     global flag      if event == cv2.event_lbuttondown:         flag = true      elif event == cv2.event_mousemove:         if flag == true:                 cv2.circle(img,(x,y),2,(255,255,255),-1)      elif event == cv2.event_lbuttonup:         flag = false  img = np.zeros(imgg.shape[:2], np.uint8) cv2.namedwindow('image') cv2.setmousecallback('image',draw)  while(1):     cv2.imshow('image',imgg)     cv2.imshow("mask",img)     if(cv2.waitkey(1))==27:         break cv2.imwrite("mask.png",img) cv2.destroyallwindows()

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