Latest Publications
Influence of Color-to-Gray Conversion on the Performance of Document Image Binarization: Toward a Novel Optimization Problem
This paper presents a novel preprocessing method of color-to-gray document image conversion. In contrast to the conventional methods designed for natural images that aim to preserve the contrast between different classes in the converted gray image, the proposed […]
FSITM: A Feature Similarity Index For Tone-Mapped Images
In this work, based on the local phase information of images, an objective index, called the feature similarity index for tone-mapped images (FSITM), is proposed. To evaluate a tone mapping operator (TMO), the proposed index compares the locally […]
Feature Set Evaluation for Offline Handwriting Recognition Systems: Application to the Recurrent Neural Network Model
The performance of handwriting recognition systems is dependent on the features extracted from the word image. A large body of features exists in the literature, but no method has yet been proposed to identify the most promising of […]
Lexicon reduction of handwritten Arabic subwords based on the prominent shape regions
This paper presents a new lexicon reduction method for historical Arabic scripts that compares the input subword image with the lexicon entries, and selects the most similar ones. In comparing two subword images, more importance is given to […]
