Abstract
This paper proposes a novel image processing algorithm that maintains perceivable luminance as much as possible while it significantly reduces EL power consumption of OLED based upon a well‐known Helmholtz‐Kohl effect which is one of the representative theories based on human visual system's (HVS) characteristics of recognizing higher saturation images to be brighter. Proposed method effectively resolves various image artifacts incurred by the modification of ‘saturation’ value in each pixel, by carefully analyzing various image artifacts in each of problematic cases. Experimental results show that we have achieved a score of 4.18 based upon a subjective image quality evaluation methodology (Mean Opinion Score) and an average of 15.3% of EL power consumption savings were achieved in 20 evaluation images at the same time.
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