Color and Imaging Conference · 1999 · 10 citations · 0 references
MedicineVision ScienceComputer VisionMachine VisionVisual PerceptionColor PerceptionDigital Image ProcessingDigital Signal ProcessingImage ProcessingImage QualitySignal ProcessingColor Image ProcessingColor InterpolationImage DemosaicingImage InterpolationSignalsVisual Signal ProcessingWavelet TransformWavelet-based Filtering
New color signal demosaicing algorithms in digital cameras are introduced by using properties of the human visual system, and by analyzing the desired frequency response of the interpolation filters. A color transformation of the RGB signal is used to obtain new signals on which interpolation is performed. The transformation corresponds to the signal processing steps within the human visual system. Wavelet filters are used for interpolation. Both objective measure and subjective testing show that the proposed algorithm achieves advantages over a previously published algorithm.