Title
Learning Document Image Binarization from Data
Abstract
In this paper we present a fully trainable binarization solution for degraded document images. Unlike previous attempts that often used simple features with a series of pre- and post-processing, our solution encodes all heuristics about whether or not a pixel is foreground text into a high-dimensional feature vector and learns a more complicated decision function. In particular, we prepare features of three types: 1) existing features for binarization such as intensity [1], contrast [2], [3], and Laplacian [4], [5]; 2) reformulated features from existing binarization decision functions such those in [6] and [7]; and 3) our newly developed features, namely the Logarithm Intensity Percentile (LIP) and the Relative Darkness Index (RDI). Our initial experimental results show that using only selected samples (about 1.5% of all available training data), we can achieve a binarization performance comparable to those fine-tuned (typically by hand), state-of-the-art methods. Additionally, the trained document binarization classifier shows good generalization capabilities on out-of-domain data.
Year
Venue
Field
2015
ICIP
Computer science,Heuristics,Artificial intelligence,Logarithm,Classifier (linguistics),Training set,Computer vision,Feature vector,Pattern recognition,Pixel,Simple Features,Machine learning,Laplace operator
DocType
Volume
Citations 
Journal
abs/1505.00529
1
PageRank 
References 
Authors
0.36
0
4
Name
Order
Citations
PageRank
Yue Wu133131.69
stephen rawls2594.08
Wael Abd-Almageed324824.52
Premkumar Natarajan487479.46