Are there any image enhancement methods to handle some slightly blurred texts?

[PeterH0323]

If the text is confirmed to be recognizable with the naked eye, you might consider adding blur data augmentation such as mean filter, the median filter, the gaussian filter or other fuzzy operators of image processing. You can also try to strengthen the robustness of models through data augmentation perturbation. It is also feasible to try adversarial training and super resolution (SR). But, there is no best solution which is widely accepted by professions. Therefore, it is recommended to set some limitations in data collection to improve the image quality.