Senior Lecturer,
This Paper analyzes bi-level image compression using JPEG2000, JPEG2000 is designed to compress both bi-level and continuous tone image data using a single unified framework, but there is drawback with the lossless compression of bi-level image. In particular, substantial degradation in image quality at low resolutions severely limits the resolution scalable features of the JPEG2000 code-stream. Hence this project analyzes the effects of bi-level image and proposes two efficient methods to improve resolution scalability for bi-level imagery in JPEG2000. The first method employs the observations on the rounding operations which propose a simple pixel assignment scheme that improves image quality for bi-level images. The second method is based on the JPIP protocol, which enables efficient interactive access of compressed bilevel imagery.
