Display device and operation method thereof
AssigneeLG Electronics Inc.
InventorsKyuri Kim, Jongmin Park
Life of this patent
Estimating the term…
Abstract
A display device including a display; one or more processors; and a memory storing one or more programs configured to be executed by the one or more processors, the one or more programs including instructions for receiving an input image to be displayed on the display; selecting a look-up table (LUT) curve stored in the memory for the received input image; performing a histogram on the received input image; applying an offset gain to the selected LUT curve based on the histogram to generate an offset LUT curve; performing tone mapping of the input image through the offset LUT curve; and displaying the tone mapped image on the display.
Claims13
A display device comprising:
- a display;
- one or more processors;
- and
- a memory storing one or more programs configured to be executed by the one or more processors, the one or more programs including instructions for:
- receiving an input image to be displayed on the display;
- selecting a look-up table (LUT) curve stored in the memory for the received input image;
- acquiring a histogram from the received input image;
- dividing the histogram into a plurality of bins;
- grouping the plurality of bins into groups, each of the groups including multiple consecutive bins having an amount of data greater than at least a predetermined percentage of a total data occupied by the plurality of bins;
- selecting a first group among the groups;
- setting an offset gain based on at least one of a maximum bin having a maximum level of the histogram and a representative bin among the consecutive bins included in the first group;
- applying the offset gain to the selected LUT curve based on the histogram to generate an offset LUT curve;
- performing tone mapping of the input image through the offset LUT curve to generate a tone mapped image;
- and
- displaying the tone mapped image on the display.
A method of controlling a display device including a display, the method comprising:
- receiving an input image to be displayed on the display;
- selecting a look-up table (LUT) curve stored in a memory for the received input image;
- acquiring a histogram from the received input image;
- dividing the histogram into a plurality of bins;
- grouping the plurality of bins into groups, each of the groups including multiple consecutive bins having an amount of data greater than at least a predetermined percentage of a total data occupied by the plurality of bins;
- selecting a first group among the groups;
- acquiring an offset gain based on at least one of a maximum bin having a maximum level of the histogram and a representative bin among the consecutive bins included in the first group;
- applying the offset gain to the selected LUT curve based on the histogram to generate an offset LUT curve;
- performing tone mapping of the input image through the offset LUT curve to generate a tone mapped image;
- and
- displaying the tone mapped image on the display.
A non-transitory computer readable medium storing one or more programs, the one or more programs comprising instructions, which when executed, by a display device having a display, cause the display device to:
- receive an input image to be displayed on the display;
- select a look-up table (LUT) curve stored in a memory for the received input image;
- acquire a histogram from the received input image;
- divide the histogram into a plurality of bins;
- divide the plurality of bins into groups, each of the groups including multiple consecutive bins having an amount of data greater than at least a predetermined percentage of a total data occupied by the plurality of bins;
- select a first group among the divided groups;
- acquire an offset gain based on at least one of a maximum bin having a maximum level of the histogram and a representative bin among the consecutive bins included in the first group;
- apply the offset gain to the selected LUT curve based on the histogram to generate an offset LUT curve;
- perform tone mapping of the input image through the offset LUT curve to generate a tone mapped image;
- and
- display the tone mapped image on the display.
Dependencies are inferred from the claim text.