IMAGE PROCESSING APPARATUS AND METHOD OF REDUCING POWER CONSUMPTION OF SELF-LUMINOUS DISPLAY
First Claim
1. An image processing apparatus to reduce power consumption of a self-luminous display, the apparatus comprising:
- a parameter selection unit to select a parameter to adjust a degree to which power consumption is reduced;
a scale factor setting unit to extract a high-frequency component of a current pixel in an input image and to set a scale factor according to the selected parameter and a size of the extracted high-frequency component; and
a multiplier to multiply the current pixel by the set scale factor and to output a result of the multiplication.
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Abstract
An image processing apparatus and a method to reduce power consumption of a self-luminous display. The image processing apparatus includes a parameter selection unit to select a parameter to adjust a degree to which power consumption is reduced; a scale factor setting unit to extract a high-frequency component of a current pixel in an input image and to set a scale factor according to the selected parameter and a size of the extracted high-frequency component; and a multiplier to multiply the current pixel by the set scale factor and to output a result of the multiplication.
34 Citations
41 Claims
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1. An image processing apparatus to reduce power consumption of a self-luminous display, the apparatus comprising:
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a parameter selection unit to select a parameter to adjust a degree to which power consumption is reduced; a scale factor setting unit to extract a high-frequency component of a current pixel in an input image and to set a scale factor according to the selected parameter and a size of the extracted high-frequency component; and a multiplier to multiply the current pixel by the set scale factor and to output a result of the multiplication. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 41)
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11. An image processing apparatus to reduce power consumption of a self-luminous display, the apparatus comprising:
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a parameter selection unit to select a parameter to adjust a degree to which power consumption is reduced; a scale factor setting unit to calculate a distance between a current pixel in an input image and a center of the input image and to set a scale factor according to the selected parameter and the calculated distance; and a multiplier to multiply the current pixel by the set scale factor and to output a result of the multiplication. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. An image processing apparatus to reduce power consumption of a self-luminous display, the apparatus comprising:
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a parameter selection unit to select a parameter to adjust a degree to which power consumption is reduced for a display of an input image; a scale factor setting unit to calculate a temporal gradient of a luminance of a current pixel in the input image and to set a scale factor according to the selected parameter and the calculated temporal gradient; and a multiplier to multiply the current pixel by the set scale factor and to output a result of the multiplication. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. An image processing apparatus to reduce power consumption of a self-luminous display, the apparatus comprising:
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a parameter selection unit to select a parameter to adjust a degree to which power consumption is reduced for a display of an input image; a scale factor setting unit to extract a luminance component of a current pixel in the input image and to set a scale factor according to the selected parameter and a size of the extracted luminance component; and a multiplier to multiply the current pixel by the set scale factor and to output a result of the multiplication. - View Dependent Claims (27, 28)
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29. An image processing method to reduce power consumption of a self-luminous display, the method comprising:
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selecting a parameter to allow for an adjustment of a degree to which power consumption is reduced for a display of an input image; extracting a high-frequency component of a current pixel in the input image; setting a scale factor according to the selected parameter and a size of the extracted high-frequency component; multiplying the current pixel by the set scale factor; and outputting a result of the multiplication. - View Dependent Claims (30)
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31. An image processing method to reduce power consumption of a self-luminous display, the method comprising:
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selecting a parameter to allow for an adjustment of a degree to which power consumption is reduced for a display of an input image; calculating a distance between a current pixel in the input image and a center of the input image; setting a scale factor according to the selected parameter and the calculated distance; multiplying the current pixel by the set scale factor; and outputting a result of the multiplication. - View Dependent Claims (32)
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33. An image processing method to reduce power consumption of a self-luminous display, the method comprising:
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selecting a parameter to allow for an adjustment of a degree to which power consumption is reduced for a display of an input image; calculating a temporal gradient of luminance of a current pixel in the input image; setting a scale factor according to the selected parameter and the calculated temporal gradient; multiplying the current pixel by the set scale factor; and outputting a result of the multiplication. - View Dependent Claims (34)
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35. An image processing method to reduce power consumption of a self-luminous display, the method comprising:
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selecting a parameter to allow for an adjustment of a degree to which power consumption is reduced; extracting a luminance component of a current pixel in an input image and setting a scale factor according to the selected parameter and a size of the extracted luminance component; multiplying the current pixel by the set scale factor; and outputting a result of the multiplication. - View Dependent Claims (36)
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37. An image adjustment method comprising:
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extracting a luminance component of an input image; following a classification of the input image, uniformly scaling down a level or the luminance component of the input image if the input image is a graphic image having only a single color and, if the input image is not the graphic image, selecting an appropriate parameter according to whether the input image is a dark image, a bright image, or a general image; calculating individual scale factors to adjust the luminance component of the input image using the selected parameter; setting a final scale factor by multiplying the calculated individual scale factors by one another; multiplying the set final scale factor by the luminance component of the input image; and outputting a changed luminance component to reduce a power consumption to display the image. - View Dependent Claims (38, 39, 40)
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Specification