Next Article in Journal
Individualized Interaural Feature Learning and Personalized Binaural Localization Model
Next Article in Special Issue
Multi-Focus Image Fusion Based on Decision Map and Sparse Representation
Previous Article in Journal
Treatment of Organic Matter and Tetracycline in Water by Using Constructed Wetlands and Photocatalysis
Previous Article in Special Issue
A Novel Focal Length Measurement Method for Center-Obstructed Omni-Directional Reflective Optical Systems
Open AccessArticle

Improving Lossless Image Compression with Contextual Memory

Computer Science Department, Faculty of Engineering, Lucian Blaga University of Sibiu, 550024 Sibiu, Romania
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(13), 2681; https://doi.org/10.3390/app9132681
Received: 23 May 2019 / Revised: 26 June 2019 / Accepted: 28 June 2019 / Published: 30 June 2019
(This article belongs to the Special Issue Advanced Ultrafast Imaging)
With the increased use of image acquisition devices, including cameras and medical imaging instruments, the amount of information ready for long term storage is also growing. In this paper we give a detailed description of the state-of-the-art lossless compression software PAQ8PX applied to grayscale image compression. We propose a new online learning algorithm for predicting the probability of bits from a stream. We then proceed to integrate the algorithm into PAQ8PX’s image model. To verify the improvements, we test the new software on three public benchmarks. Experimental results show better scores on all of the test sets. View Full-Text
Keywords: lossless; image compression; ensemble learning; contextual information; probabilistic method; geometric weighting lossless; image compression; ensemble learning; contextual information; probabilistic method; geometric weighting
Show Figures

Figure 1

MDPI and ACS Style

Dorobanțiu, A.; Brad, R. Improving Lossless Image Compression with Contextual Memory. Appl. Sci. 2019, 9, 2681.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop