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US 9,520,075 B2Granted
Image processing method for display apparatus and image processing apparatus
AssigneeLG Display Co., Ltd.
InventorsByoungchul Cho, Namyong Gong, Sangjae Park
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Abstract
An image processing method and apparatus using the image processing method are provided. The apparatus comprises a processor configured to scale color values of input image data, thereby simulating the optical characteristics of paper. The simulation takes into consideration varying ambient light conditions around the display to imitate the optical characteristics of physical paper in the same ambient light conditions.
Claims16
A method for simulating paper-like images on a display, comprising;
- accessing image characteristics of paper and image characteristics of ink for imitating the optical characteristics of image content printed on paper according to an image quality mode;
- measuring one or more ambient light characteristics from one or more sensors;
- determining maximum brightness values for red, green and blue (RGB) sub-pixels of display pixels based on a light reflectance rate of the paper and the ambient light characteristics;
- determining minimum brightness values for the RGB sub-pixels of the display pixels based on a light reflectance rate of the ink and the ambient light characteristics;
- scaling red, green and blue (RGB) color values of an input image associated with the RGB sub-pixels of each of the display pixels in reference to the maximum brightness values and the minimum brightness values;
- and
- activating the display pixels using the scaled RGB color values of the input image to output the paper-like images on the display.
4 more elements
A display, comprising;
- a plurality of display pixels, each of the pixels having red, green and blue (RGB) sub-pixels;
- one or more sensors for measuring one or more ambient light characteristics;
- and
- a processor configured to:
- access image characteristics of paper and image characteristics of ink for imitating the optical characteristics of image content printed on paper according to an image quality mode;
- determine maximum brightness values for the RGB sub-pixels of the display pixels based on a light reflectance rate of the paper and the measured ambient light characteristics;
- determine minimum brightness values for the RGB sub-pixels of the display pixels based on a light reflectance rate of the ink and the measured ambient light characteristics;
- scale red, green and blue (RGB) color values associated with the respective RGB sub-pixels of each of the display pixels in reference to the maximum brightness values and the minimum brightness values;
- and
- activate the display pixels using the scaled RGB color to output the paper-like images on the display.
7 more elements
Dependencies are inferred from the claim text.