IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND CAMERA MODULE
First Claim
Patent Images
1. An image processing apparatus comprising:
- an edge information extracting unit that extracts edge information from an image signal that has not yet subjected to an interpolation process; and
an edge correcting unit that performs edge correction on the basis of the edge information extracted by the edge information extracting unit,wherein the edge correcting unit performs the edge correction in which a signal level of a target pixel is replaced with a maximum value of signal levels of a plurality of peripheral pixels positioned on a periphery of the target pixel when a sum of the signal level of the target pixel and the edge information is more than the maximum value, andwherein the edge correcting unit performs the edge correction in which the signal level of the target pixel is replaced with a minimum value of the signal levels of the plurality of peripheral pixels when a sum of the signal level of the target pixel and the edge information is less than the minimum value.
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Abstract
In an image processing apparatus according to one embodiment, an edge correcting unit replaces a signal level of a target pixel with a maximum value of signal levels of a plurality of peripheral pixels when a sum of the signal level of the target pixel and the edge information is more than the maximum value, and the edge correcting unit replaces the signal level of the target pixel with a minimum value of the signal levels of the plurality of peripheral pixels when a sum of the signal level of the target pixel and the edge information is less than the minimum value.
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Citations
15 Claims
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1. An image processing apparatus comprising:
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an edge information extracting unit that extracts edge information from an image signal that has not yet subjected to an interpolation process; and an edge correcting unit that performs edge correction on the basis of the edge information extracted by the edge information extracting unit, wherein the edge correcting unit performs the edge correction in which a signal level of a target pixel is replaced with a maximum value of signal levels of a plurality of peripheral pixels positioned on a periphery of the target pixel when a sum of the signal level of the target pixel and the edge information is more than the maximum value, and wherein the edge correcting unit performs the edge correction in which the signal level of the target pixel is replaced with a minimum value of the signal levels of the plurality of peripheral pixels when a sum of the signal level of the target pixel and the edge information is less than the minimum value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An image processing method comprising:
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extracting edge information from an image signal that has not yet subjected to an interpolation process; performing an edge correction in which a signal level of a target pixel is replaced with a maximum value of signal levels of a plurality of peripheral pixels positioned on a periphery of the target pixel when a sum of the signal level of the target pixel and the edge information is more than the maximum value based on the extracted edge information; and performing an edge correction in which the signal level of the target pixel is replaced with a minimum value of the signal levels of the plurality of peripheral pixels when a sum of the signal level of the target pixel and the edge information is less than the minimum value based on the extracted edge information. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A camera module comprising:
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a lens unit that receives in light from a subject; an image sensor that generates an image signal according to the light received by the lens unit; and an image processing apparatus that performs image processing on the image signal transmitted from the image sensor, wherein the image processing apparatus comprises; an edge information extracting unit that extracts edge information from an image signal that has not yet subjected to an interpolation process; and an edge correcting unit that performs edge correction on the basis of the edge information extracted by the edge information extracting unit, and wherein the edge correcting unit performs the edge correction in which a signal level of a target pixel is replaced with a maximum value of signal levels of a plurality of peripheral pixels positioned on a periphery of the target pixel when a sum of the signal level of the target pixel and the edge information is more than the maximum value, and wherein the edge correcting unit performs the edge correction in which the signal level of the target pixel is replaced with a minimum value of the signal levels of the plurality of peripheral pixels when a sum of the signal level of the target pixel and the edge information is less than the minimum value.
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Specification