A NEURAL NETWORK APPROACH FOR BLOCK CODING IMAGE COMPRESSION

Document Type : Original Article

Author

Associate Professor, Dpt. of Computer & OR, Military Technical College, Cairo, Egypt.

Abstract

This paper presents a scheme for image compression using block coding by vector quantization technique. This scheme achieves promising results in compression ratio and image quality. Although the encoding time represents a big problem in such solutions, it is improved using a self-organizing feature map (SOFM) neural network. Feature extraction reduces the dimensionality of the problem and enables the neural network to be trained on an image separate from that for testing. Although the time complexity has been reduced, the image quality is also affected by a slight value, which can be accepted in many situations.

Keywords