Patent ID: 11908369
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 1:
2. The contrast enhancement device of claim 1, wherein
the analysis circuit determines an average luminance value, a low gray luminance value, a middle gray luminance value and a high gray luminance value of the input data by analyzing luminance values of the input data, and
the analysis circuit determines, as the contrast enhancement coefficient, a low gray input luminance value, a middle gray input luminance value, a high gray input luminance value, a low gray output luminance value, a middle gray output luminance value and a high gray output luminance value based on the average luminance value, the low gray luminance value, the middle gray luminance value and the high gray luminance value of the input data.