AN AUTO-FOCUSING ALGORITHM USING DISCRETE WAVELET TRANSFORM

摘要

What is disclosed is a method that includesgenerating an overall sharpness parameter for agiven focus position by performing a DiscreteWavelet Transform upon an image captured by animaging device (530) and automatically focusingsaid imaging device to an optimal focus positionby comparing a plurality of different sharpnessparameters. The optimal focusing position isautomatically determined by finding the highestsharpness parameter for a given scene (540).