De-gan: A conditional generative adversarial network for document enhancement

MA Souibgui, Y Kessentini - IEEE Transactions on Pattern …, 2020 - ieeexplore.ieee.org
Documents often exhibit various forms of degradation, which make it hard to be read and
substantially deteriorate the performance of an OCR system. In this paper, we propose an …

Binarization of degraded document images based on hierarchical deep supervised network

QN Vo, SH Kim, HJ Yang, G Lee - Pattern Recognition, 2018 - Elsevier
The binarization of degraded document images is a challenging problem in terms of
document analysis. Binarization is a classification process in which intra-image pixels are …

Degraded document image binarization using structural symmetry of strokes

F Jia, C Shi, K He, C Wang, B **ao - Pattern Recognition, 2018 - Elsevier
This paper presents an effective approach for the local threshold binarization of degraded
document images. We utilize the structural symmetric pixels (SSPs) to calculate the local …

An adaptive local binarization method for document images based on a novel thresholding method and dynamic windows

B Bataineh, SNHS Abdullah, K Omar - Pattern Recognition Letters, 2011 - Elsevier
Binary image representation is essential format for document analysis. In general, different
available binarization techniques are implemented for different types of binarization …

Improvement of image binarization methods using image preprocessing with local entropy filtering for alphanumerical character recognition purposes

H Michalak, K Okarma - entropy, 2019 - mdpi.com
Automatic text recognition from the natural images acquired in uncontrolled lighting
conditions is a challenging task due to the presence of shadows hindering the shape …

ZigZag: A Robust Adaptive Approach to Non-Uniformly Illuminated Document Image Binarization

JL Bloechle, J Hennebert, C Gisler - Proceedings of the ACM …, 2024 - dl.acm.org
In the era of mobile imaging, the quality of document photos captured by smartphones often
suffers due to adverse lighting conditions. Traditional document analysis and optical …

U-Net-bin: hacking the document image binarization contest

PV Bezmaternykh, DA Ilin, DP Nikolaev - Компьютерная оптика, 2019 - cyberleninka.ru
Image binarization is still a challenging task in a variety of applications. In particular,
Document Image Binarization Contest (DIBCO) is organized regularly to track the state-of …

[PDF][PDF] Binarization techniques used for grey scale images

N Garg, N Garg - International Journal of Computer Applications, 2013 - Citeseer
Image binarization is important step in the OCR (Optical Character Recognition). There are
several methods used for image binarization recently, but there is no way to select single or …

Binarization of degraded document images using convolutional neural networks and wavelet-based multichannel images

Y Akbari, S Al-Maadeed, K Adam - IEEE Access, 2020 - ieeexplore.ieee.org
Convolutional neural networks (CNNs) have previously been broadly utilized to binarize
document images. These methods have problems when faced with degraded historical …

Unsupervised neural domain adaptation for document image binarization

FJ Castellanos, AJ Gallego, J Calvo-Zaragoza - Pattern Recognition, 2021 - Elsevier
Binarization is a well-known image processing task, whose objective is to separate the
foreground of an image from the background. One of the many tasks for which it is useful is …