Text Image Augmentation

A general geometric augmentation tool for text images in the CVPR 2020 paper "Learn to Augment: Joint Data Augmentation and Network Optimization for Text Recognition". We provide the tool to avoid overfitting and gain robustness of text recognizers.

Note that this is a general toolkit. Please customize for your specific task. If the repo benefits your work, please cite the papers.

Requirements

• Python 3.6.4
• Numpy 1.14.0

Demo

• Distortion

• Stretch

• Perspective

Speed

To transform an image with size (H:64, W:200), it takes less than 14ms using a 2.5GHz CPU. It is possible to accelerate the process by calling multi-process batch samplers in an on-the-fly manner, such as setting "num_workers" in PyTorch.

Attention

Modify from https://github.com/Canjie-Luo/Text-Image-Augmentation.git.