Efficient GANs for Document Image Binarization Based on DWT and Normalization

• URL: http://arxiv.org/abs/2407.04231v1
• Date: Fri, 5 Jul 2024 03:19:32 GMT
• Title: Efficient GANs for Document Image Binarization Based on DWT and Normalization
• Authors: Rui-Yang Ju, KokSheik Wong, Jen-Shiun Chiang,
• Abstract summary: generative adversarial networks (GANs) can generate images where shadows and noise are effectively removed, which allow for text information extraction. This work introduces an efficient GAN method based on the three-stage network architecture that incorporates the Discrete Wavelet Transformation and normalization. Experimental results show that the proposed method reduces the training time by 10% and the inference time by 26% when compared to the SOTA method.
• Score: 7.597556504891501
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: For document image binarization task, generative adversarial networks (GANs) can generate images where shadows and noise are effectively removed, which allow for text information extraction. The current state-of-the-art (SOTA) method proposes a three-stage network architecture that utilizes six GANs. Despite its excellent model performance, the SOTA network architecture requires long training and inference times. To overcome this problem, this work introduces an efficient GAN method based on the three-stage network architecture that incorporates the Discrete Wavelet Transformation and normalization to reduce the input image size, which in turns, decrease both training and inference times. In addition, this work presents novel generators, discriminators, and loss functions to improve the model's performance. Experimental results show that the proposed method reduces the training time by 10% and the inference time by 26% when compared to the SOTA method while maintaining the model performance at 73.79 of Avg-Score. Our implementation code is available on GitHub at https://github.com/RuiyangJu/Efficient_Document_Image_Binarization.

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