Papers › ShaDocNet: Learning Spatial-Aware Tokens in Transformer for Document Shadow Removal

ShaDocNet: Learning Spatial-Aware Tokens in Transformer for Document Shadow Removal

30 Nov 2022arXiv:2211.16675archive 2025-07-28

Xuhang Chen, Xiaodong Cun, Chi-Man Pun, Shuqiang Wang

Shadow removal improves the visual quality and legibility of digital copies of documents. However, document shadow removal remains an unresolved subject. Traditional techniques rely on heuristics that vary from situation to situation. Given the quality and quantity of current public datasets, the majority of neural network models are ill-equipped for this task. In this paper, we propose a Transformer-based model for document shadow removal that utilizes shadow context encoding and decoding in both shadow and shadow-free regions. Additionally, shadow detection and pixel-level enhancement are included in the whole coarse-to-fine process. On the basis of comprehensive benchmark evaluations, it is competitive with state-of-the-art methods.

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Document Shadow RemovalImage Shadow RemovalShadow DetectionShadow Removal

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