LP-IOANet: Efficient High Resolution Document Shadow Removal

03/22/2023
by   Konstantinos Georgiadis, et al.
0

Document shadow removal is an integral task in document enhancement pipelines, as it improves visibility, readability and thus the overall quality. Assuming that the majority of practical document shadow removal scenarios require real-time, accurate models that can produce high-resolution outputs in-the-wild, we propose Laplacian Pyramid with Input/Output Attention Network (LP-IOANet), a novel pipeline with a lightweight architecture and an upsampling module. Furthermore, we propose three new datasets which cover a wide range of lighting conditions, images, shadow shapes and viewpoints. Our results show that we outperform the state-of-the-art by a 35 average error (MAE), while running real-time in four times the resolution (of the state-of-the-art method) on a mobile device.

READ FULL TEXT

Please sign up or login with your details

Forgot password? Click here to reset