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1D frequency domain analysis of Frei-Chen edge masks

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1 Author(s)
Rae-Hong Park ; Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea

3×3 compass gradient edge masks can be interpreted in the one-dimensional (1D) frequency domain using the circularity of the weight matrix. By carrying out a 1D frequency domain analysis, the author explains the Frei-Chen edge masks and their irrational weights

Published in:

Electronics Letters  (Volume:34 ,  Issue: 6 )