Abstract
Title : Image Compression Through Level Lines and Wavelet Packets
Authors : Jacques Froment
We present a structured image compression scheme based on a u=v+w model,
where the original image u is decomposed between a sketch v and a
residue w.
The sketch contains all the meaningful edge curves, and the geometry of these
edges is precisely detected and coded using level lines. The residue w=u-v
contains all the microtextures, and it is compressed by means of a wavelet
packet representation. By splitting the information contained in natural
images between sketch and microtextures, we can use the most adapted
representation on each of these structures. Edges are not
deteriorated by ringing artefacts on the contrary of what could be observed
with standard wavelet or wavelet packet compression schemes.