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Currently, two error propagation-free discrete cosine transform (DCT)-based data hiding algorithms, one by Ma et al. and the other by Lin et al., were presented for H.264/AVC intra-coded frames. However, the state-of-the-art video codec, high efficiency video coding (HEVC), adopts both integer DCT and discrete sine transform (DST) such that the previous(More)
A demosaicing algorithm is just a digital image process used to reconstruct full color image from the incomplete color samples output from a picture sensor overlaid with a color filter array (CFA). It is also known as CFA interpolation or color reconstruction. Most contemporary digital camera models acquire images using a single image sensor overlaid with a(More)
To reduce the cost, most of surveillance cameras and web cameras are equipped with a single sensor covered by a red-green-blue (RGB) color filter array (CFA) for capturing only one RGB color component per pixel and hence produce so-called mosaic images. Conventionally, such cameras perform demosaicking, the transform from RGB domain to YUV domain, the(More)