Efficient Wavelet Image Coding on a Digital Signal Processor Based Digital Camera

摘要

The wavelet method of image compression is superior to JPEG in achieving high compression rates without introducing block artefacts.The Motorola DSP56303 has proved to offer an excellent hardware match for the implementation of a Wavelet based image compression algorithm. It offers a number ofarchitectural features that allow it to efficiently perform the large number of calculations required to compress images by ratios exceeding 20:1. This enables an optimised implementation of a wavelet based compression method to be used for slow frame rate digital video.