JP2015076685A5 - - Google Patents

Description

An image processing apparatus according to one aspect of the present invention includes a signal level of a color plane corresponding to at least one color filter of an image obtained from an imaging device including a plurality of color filters, or luminance generated from the image. Detecting means for detecting a first area in which a signal level of the plane monotonously increases or decreases monotonously in a first direction in a predetermined section; optical information relating to color blur of the photographing optical system; and the first area based on the information, possess a correction means for correcting a determination unit configured to determine a second region said color blur has occurred, the image to reduce the fringing the color, the optical information, the This is information relating to the second direction in which color blur of the photographing optical system occurs, and the determination means compares the first direction with the second direction to compare the second direction. To determine.

An image pickup apparatus according to another aspect of the present invention provides an image pickup device that photoelectrically converts an optical image, and a color plane signal corresponding to at least one color filter of an image obtained from the image pickup device including a plurality of color filters. Detection means for detecting a first region in which a level or a signal level of a luminance plane generated from the image monotonously increases or decreases in a first direction in a predetermined section, and a color of the photographing optical system Determination means for determining the second area where the color blur is generated based on the optical information regarding the blur and the information regarding the first area, and a correction means for correcting the image so as to reduce the color blur possess the door, said optical information is information relating to a second direction color blur of the imaging optical system is generated, the determining means, said second direction and said first direction Determining the second region by comparing the.

An image processing method according to another aspect of the present invention is generated from a signal level of a color plane corresponding to at least one color filter of an image obtained from an image sensor including a plurality of color filters, or from the image. A step of detecting a first region in which a signal level of the luminance plane is monotonously increasing or monotonously decreasing in a first direction in a predetermined section; optical information relating to color blur of the photographing optical system; and the first region based on the information, it possesses and correcting and determining a second region where the color blur has occurred, the image to reduce the fringing the color, the optical information, the photographing optical It is information relating to a second direction in which the color of the system bleeding occurs, determines the second area by comparing the second direction and the first direction.

An image processing program according to another aspect of the present invention is configured to cause a computer to execute the image processing method .

Claims (13)

A signal level of a color plane corresponding to at least one color filter of an image obtained from an image sensor having a plurality of color filters or a signal level of a luminance plane generated from the image is first in a predetermined section. Detecting means for detecting a first region monotonously increasing or monotonically decreasing in the direction of
Determination means for determining a second area where the color blur is generated based on optical information regarding color blur of the photographing optical system and information regarding the first area;
Have a, and modifying means for modifying the image to reduce the fringing the color,
The optical information is information relating to a second direction in which color blur of the photographing optical system occurs,
The image processing apparatus according to claim 1, wherein the determination unit determines the second region by comparing the first direction and the second direction . The determination unit, when the first direction and the second direction coincides with each other, according to claim 1, wherein the first region and judging that the second region Image processing device. Wherein the optical information, the image processing apparatus according to claim 1 or 2, characterized in that the information about the intensity of the color fringing of the photographing optical system. The image processing apparatus according to claim 3 , wherein the correcting unit changes an intensity for correcting the image based on information on the intensity of the color blur. When the first direction and the second direction coincide with each other in a plurality of directions, the correcting unit calculates the information on the intensity of color blur in the plurality of directions and corrects the image. The image processing apparatus according to claim 2 . When the first direction and the second direction coincide with each other in a plurality of directions, the correction unit corrects the image using information on the intensity of color blur in the centroid direction of the plurality of directions. The image processing apparatus according to claim 5 . The image processing apparatus according to any one of claims 1 to 6, further comprising a storage means for storing the optical information for each photographing condition. The image processing apparatus according to claim 7 , wherein the photographing condition includes at least one of a focal length, a subject distance, and an aperture value of the photographing optical system. An image sensor that photoelectrically converts an optical image;
A signal level of a color plane corresponding to at least one color filter of an image obtained from the image pickup device including a plurality of color filters or a signal level of a luminance plane generated from the image is set in a predetermined section. Detecting means for detecting a first region monotonously increasing or monotonically decreasing in the direction of 1;
Determination means for determining a second area where the color blur is generated based on optical information regarding color blur of the photographing optical system and information regarding the first area;
Have a, and modifying means for modifying the image to reduce the fringing the color,
The optical information is information relating to a second direction in which color blur of the photographing optical system occurs,
The said determination means determines the said 2nd area | region by comparing the said 1st direction and the said 2nd direction, The imaging device characterized by the above-mentioned . A lens device equipped with a photographing optical system;
An imaging system comprising: the imaging device according to claim 9 . A signal level of a color plane corresponding to at least one color filter of an image obtained from an image sensor having a plurality of color filters or a signal level of a luminance plane generated from the image is first in a predetermined section. Detecting a first region monotonically increasing or monotonically decreasing in the direction of
Determining a second area in which the color blur is generated based on optical information on the color blur of the photographing optical system and information on the first area;
Have a, and correcting the image to reduce the fringing the color,
The optical information is information relating to a second direction in which color blur of the photographing optical system occurs,
An image processing method, wherein the second area is determined by comparing the first direction and the second direction . An image processing program configured to cause a computer to execute the image processing method according to claim 11 . A storage medium storing the image processing program according to claim 12 .