Demosaicing scheme based on augmented inter-channel correlation considering colour saturation

J. Kim, S. W. Park, M. G. Kang

Research output: Contribution to journalArticlepeer-review


Augmented colour difference gradients in the extended support region contribute to the reduction of high-frequency loss in image reconstruction via a demosaicing process. However, distant gradients must only be used for highly inter-channel correlated regions. Otherwise, the pattern grid remains, even after demosaicing. Herein, a demosaicing scheme is proposed, in which the geometric distances as well as the edge directions (as in a bilateral filter) are incorporated in order to calculate colour difference gradients weights. The inter-channel correlation is closely related to the colour saturation. Thus, the weights are adaptively adjusted according to the inter-channel correlation considering colour saturation. Experimental results show that the proposed scheme improves the results of a state-of-the-art demosaicing process.

Original languageEnglish
Pages (from-to)1112-1113
Number of pages2
JournalElectronics Letters
Issue number16
Publication statusPublished - 2017 Aug 3

Bibliographical note

Publisher Copyright:
© The Institution of Engineering and Technology 2017.

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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