A Complete Image Compression Scheme Based on Overlapped Block Transform with Post-Processing

A Complete Image Compression Scheme Based on Overlapped Block Transform with Post-Processing

1 Intelligent Automation, Inc. (IAI), 15400 Calhoun Drive, Suite 400, Rockville, MD 20855, USA 2Department of Computer Science and Engineering, Ira. A. Fulton School of Engineering, Arizona State University, P. O. Box 878809, Tempe, AZ 85287-8809, USA 3Department of Electrical and Computer Engineering, The Whiting School of Engineering, The Johns Hopkins University, Baltimore, MD 21218, USA 4De...

Color Image Compression with a Variable Block-Size Transform Scheme

In a previous paper an adaptive transform-based coding method was introduced and used for the particular application of compressing the monochrome images of videoconference sequences 1]. In the present paper the results of applying this adaptive scheme to compress still color images are presented. The basic principle of the algorithm is to encode those larger 2N 2N-pixel regions featuring low i...

Image compression methodology based on fuzzy transform using block similarity

The aim of the work is to continue in improvement of the image compression algorithm based on the F-transform. The image is decomposed into blocks and characterized by the F-transform components. The latter constitutes a simple lossy compression. For better quality of reconstructed images, we compress certain areas (neighborhoods of edges) nonlossy. The proposed approach is based on establishin...

Block Based Discrete Wavelet Transform for Image Compression

Review on Transform Based Medical Image Compression

Advance medical imaging requires storage of large quantities of digitized clinical data. Due to the bandwidth and storage limitations, medical images must be compressed before transmission and storage. Diagnosis is effective only when compression techniques preserve all the relevant and important image information needed. There are basically two types of image compression: lossless and lossy. L...