A document image analysis toolbox, including a collection of data structures and algorithms to support a variety of applications, is described in this paper. An experimental environment is built to allow developers to develop, test and optimize their algorithms and systems. Appropriate and quantitative performance metrics for each kind of information a document analysis technique infers have be...

Binarization method is the key process to restore degraded historical document image. In this paper, the framework for degraded Thai historical document image restoration is proposed. The proposed framework consists of three stage including image filtering stage, local-based thresholding stage, and cluster analysis stage. Image filtering stage aims to eliminate some noises by using Wiener filte...

Document Image Retrieval! !! G. Pirlo , M. Chimienti, M. Dassisti, D. Impedovo, A. Galiano !!!!!!! Abstract. This paper presents new system for document image retrieval, based on layout-analysis. The system, that is well suited for commercial form retrieval, uses Radon Transform for layout description and Dynamic Time Warping for document image matching. The experimental results, that were cond...

The analysis of a document image to derive a symbolic description of its structure and contents involves using spatial domain knowledge to classify the different printed blocks (e.g., text paragraphs), group them into logical units (e.g., newspaper stories), and determine the reading order of the text blocks within each unit. These steps describe the conversion of the physical structure of a do...

Binarization is a well-known image processing task, whose objective to separate the foreground of an from background. One many tasks for which it useful that preprocessing document images in order identify relevant information, such as text or symbols. The wide variety types, alphabets, and formats makes binarization challenging. There are multiple proposals with solve this problem, classical m...

Smartphones have enabled effortless capturing and sharing of documents in digital form. The documents, however, often undergo various types degradation due to aging, stains, or shortcoming environment such as shadow, non-uniform lighting, etc., which reduces the comprehensibility document images. In this work, we consider problem image cleanup on embedded applications smartphone apps, usually m...