Fig. 1. Schematic of area containing texts and its outer neighborhood

Fig. 2. Schematic of pixels with text interference and their neighborhood points

Fig. 3. Image with text interference

Fig. 4. Detection for text interference. (a) Detection result of edge in Fig. 3; (b) result of binarization of Fig. 4(a)

Fig. 5. Location of interference text. (a) Connected domain processed by morphology; (b) result after removing connected domain with few pixels

Fig. 6. Images obtained by morphological processing and removing small connected domain. (a) Gray scale corresponding to image to be repaired; (b) gray scale after binarization

Fig. 7. Location of interference text. (a) Mask pattern; (b) image with text to be processed

Fig. 8. Result after eliminating interference text in image by using TV model. (a) 5 iterations; (b) 60 iterations

Fig. 9. Results after eliminating interference text in image by using TV model with different iterations. (a) Image to be processed; (b) 50 iterations; (c) 100 iterations; (d) 300 iterations