Edge-Based Image Compression with Homogeneous Diffusion

  title={Edge-Based Image Compression with Homogeneous Diffusion},
  author={Markus Mainberger and Joachim Weickert},
It is well-known that edges contain semantically important image information. In this paper we present a lossy compression method for cartoon-like images that exploits information at image edges. These edges are extracted with the Marr–Hildreth operator followed by hysteresis thresholding. Their locations are stored in a lossless way using JBIG. Moreover, we encode the grey or colour values at both sides of each edge by applying quantisation, subsampling and PAQ coding. In the decoding step… CONTINUE READING
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