Image processing device for correcting signal irregularity, calibration method, imaging device, image processing program, and image processing method
AssigneeNikon Corporation
InventorHideyasu Kuniba
Life of this patent
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Abstract
An image processing device of the present application includes an image acquisition unit, a slope generation unit, and a slope correction unit. The image acquisition unit takes in an image data generated by an imaging element. The slope generation unit generates a slope correction data correcting, in a slope-shape, a signal irregularity caused in the image data due to a manufacturing process of the imaging element. The slope correction unit corrects the signal irregularity within the image data using the slope correction data.
Claims10
An image processing device comprising:
- an image acquisition unit taking in an image data generated by an imaging element;
- a slope generation unit generating a slope correction data correcting, in a slope-shape waveform, a signal irregularity caused in a boundary of a predetermined line in the image data due to a manufacturing process of the imaging element;
- and
- a slope correction unit correcting the signal irregularity within the image data using the slope correction data for correction, wherein
- the slope correction data has specified values on the predetermined line in the image data and converges to 1 with a specified distance from the line, the specified distance being set to have an extent that the signal irregularity becomes indistinctive with varying smoothly.
An image processing device comprising:
- an image acquisition unit taking in an image data generated by an imaging element;
- a per-region storage unit storing a color shading caused in each region of a segment exposure due to the segment exposure at the time of manufacturing the imaging element;
- a per-region removal unit removing the color shading in each region from the image data;
- and
- a slope generation unit generating a slope correction data correcting, in a slope-shape waveform, a signal irregularity caused in a boundary of a predetermined line in the image data due to a manufacturing process of the imaging element;
- and
- a slope correction unit correcting the signal irregularity within the image data using the slope correction data for correction, wherein
- the slope correction data has specified values on the predetermined line in the image data and converges to 1 with a specified distance from the line, the specified distance being set to have an extent that the signal irregularity becomes indistinctive with varying smoothly.
An image processing method comprising:
- taking in an image data generated by an imaging element;
- generating a slope correction data correcting, in a slope-shape waveform, a signal irregularity caused in a boundary of a predetermined line in the image data due to a manufacturing process of the imaging element;
- and
- correcting the signal irregularity within the image data using the slope correction data, wherein
- the slope correction data has specified values on the predetermined line in the image data and converges to 1 with a specified distance from the line, the specified distance being set to have an extent that the signal irregularity becomes indistinctive with varying smoothly.
Dependencies are inferred from the claim text.