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http://dx.doi.org/10.5909/JBE.2018.23.2.206

Image Enhancement Using Human Visual Perception  

Bang, Seangbae (College of Electronics & Information, Kyung Hee University)
Kim, Wonha (College of Electronics & Information, Kyung Hee University)
Publication Information
Journal of Broadcast Engineering / v.23, no.2, 2018 , pp. 206-217 More about this Journal
Abstract
We develop the signal processing method for adaptive implementing direction of signal and the frequency sensitivity of human visual system(HVS). Existing multiband energy scaling method makes ringing artifact because it does not consider signal direction. To solve this problem, we use block gradient for signal direction in addition to existing method. And we use the fact that frequency component of signal is more sensitive than value of signal over human eyes. we enhance the signal according to contrast sensitivity function(CSF) which is the model of frequency sensitivity of human eye. Compared that the existing analysis models only improve the efficiencies in the existing systems, the developed method can process the image signals to be more desirable and suitable to HVS.
Keywords
Contrast Sensitivity; Human Visual System(HVS); DCT; Signal Direction;
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