When a wavelet coefficient is large, a lot ofsignal energyis locatedatthat point, which mayindicate important image features such as edges. ... The presented algorithm was implemented using the free WaveLab package  in Matlab, and has been integrated in the open source NFI PRNUCompare program that has been made freely available . Fig. ... (that form a Quadrature Mirror Filter) work on the image data, decomposing the image into an orthonormal basis (transform coding).
|Author||:||Zeno J. M. H. Geradts, Katrin Franke, Cor J. Veenman|
|Publisher||:||Springer Science & Business Media - 2009-07-28|