Patent application number | Description | Published |
20110103686 | IMAGE PROCESSING APPARATUS AND CONTROL METHOD THEREFOR - This invention discloses an image processing apparatus that can obtain, from an image, the amount of correction for chromatic aberration of magnification, that can appropriately correct a color shift while suppressing a change in color on the edge portion of the image before and after the correction. In obtaining the amount of color shift between one color plane and another color plane, the color differences before and after the color shift is corrected are calculated for each pair of pixels included in regions of interest. It is determined whether the amount of change in color difference before and after correction falls within a predetermined range. The amount of color shift is obtained in the range in which it is determined that the amount of change in color difference before and after correction falls within a predetermined range. | 05-05-2011 |
20120014599 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - In an image processing apparatus, an edge extraction unit extracts edges from image data. A correction amount acquisition unit acquires a misregistration amount of one color plane relative to another color plane of the image data, and calculates a first correction amount corresponding to an image height based on image heights of respective edges and misregistration amounts of respective edges. The correction amount acquisition unit calculates a second correction amount specific to a lens based on lens design data. A correction amount calculation unit calculates a difference between the first correction amount and the second correction amount, adjusts the difference so that the difference falls within a predetermined range, and calculates a third correction amount based on the adjusted difference and the second correction amount. A correction unit corrects the image data based on the third correction amount. | 01-19-2012 |
20120154626 | IMAGE PROCESSING METHOD AND IMAGE PROCESSING APPARATUS FOR IMAGE RESTORATION - The image processing method includes a step of acquiring an input image produced by image capturing using an optical system, an image restoration step of performing an image restoration process on the input image to produce a restored image, the image restoration process using an image restoration filter produced based on an optical transfer function of the optical system, and a color shift detection step of detecting color shift included in the restored image, the color shift corresponding to chromatic aberration of magnification of the optical system. The method further includes a restored image color shift reduction step of performing a color shift reduction process on the restored image to reduce the color shift detected in the color shift detection step. | 06-21-2012 |
20120320240 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - Provided is an image processing apparatus that reduces over recovery of image data by image recovery processing. An image processing unit selects an image recovery filter corresponding to an imaging condition and performs image recovery processing on captured image data using the image recovery filter. Further, the image processing unit limits a change amount of a pixel signal value of the image data by the image recovery processing based on a change amount limit value determined according to characteristics of a gamma correction processing that is applied after the image recovery processing. | 12-20-2012 |
20130050540 | IMAGE PROCESSING APPARATUS, IMAGE CAPTURE APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus which enables to suppress coloring in an image after image recovery processing, and a control method for the image processing apparatus are disclosed. After the chromatic difference of magnification of an optical imaging system is corrected, a first value relating to coloring is obtained before application of an image recovery filter. Then, an image recovery filter which, preferably, does not correct a chromatic difference of magnification and is based on a function indicating the aberrations of the optical imaging system is applied. A second value associated with coloring is obtained from the image after application of the image recovery filter. According to the difference between the first and second values obtained before and after application of the image recovery filter respectively, pixel value correction for correcting coloring is performed. | 02-28-2013 |
20130050544 | IMAGE PROCESSING APPARATUS, IMAGE CAPTURE APPARATUS, AND IMAGE PROCESSING METHOD - An image processing apparatus and image processing method, which enable suppression of coloring that occurs in image recovery processing for a RAW image are disclosed. Pixel interpolation processing is executed for a predetermined reference color component of the RAW image. For each color component other than the reference color component, a first color difference is obtained using a pixel value of the color component and a corresponding pixel value of the reference color component after the pixel interpolation processing. After applying the image recovery processing to each color component, a second color difference is obtained in a similar manner to the first color difference, and a pixel value is corrected according to the difference between the first and second color differences determined before and after the image recovery processing. | 02-28-2013 |
20130076938 | IMAGE PROCESSING APPARATUS AND METHOD - An image processing apparatus for performing recovery processing of correcting degradation of an image due to an aberration of an optical imaging system with respect to image data obtained by sensing an object image entering through the optical imaging system using an image sensor, comprises: a selection unit configured to select a filter to be used for recovery processing in accordance with an image sensing condition at the time of the image sensing; an image processing unit configured to perform recovery processing for the image data by using the filter selected by the selection unit; and a correction unit configured to determine a correction value based on a difference between the value of a pixel before and after recovery processing by the image processing unit, and correcting the pixel value before the recovery processing by the image processing unit using the determined correction value. | 03-28-2013 |
20140022411 | IMAGE PROCESSING APPARATUS AND CONTROL METHOD THEREOF, AND IMAGE CAPTURE APPARATUS - Provided is an image processing apparatus that corrects differences in the tints of captured images caused by differences in the color characteristics of lenses used to shoot the images, as well as a control method for such an apparatus. The type of an interchangeable lens used to shoot an image is determined from a plurality of types of interchangeable lenses having different color characteristics. The influence of differences in the color characteristics of the interchangeable lenses on the tint of the image is then reduced by setting at least one of white balance coefficients used in white balance adjustment of the image and conversion characteristics of a color space conversion process applied to the image to correspond to the type of the interchangeable lens used to shoot the image. | 01-23-2014 |
20140022418 | IMAGE CAPTURE APPARATUS AND CONTROL METHOD THEREOF, AND LENS UNIT - A plurality of types of interchangeable lenses having mutually different optical parameters required for identifying the optical correction values can be attached to the image capture apparatus. First, predetermined optical parameters are obtained regardless of what type of interchangeable lens is attached. Furthermore, in the case where the type of the attached interchangeable lens is a type that requires different optical parameters than the predetermined optical parameters for identifying the optical correction value, the necessary optical parameters are obtained. The optical correction value is identified based on the type of the attached interchangeable lens using the predetermined optical parameters, other optical parameters, and so on, and optical correction is then carried out. | 01-23-2014 |
20150049216 | IMAGE CAPTURING APPARATUS - An image capturing apparatus capable of interchanging a lens unit includes a processing unit configured to perform image correction processing based on data acquired by an acquisition unit. In the image capturing apparatus, the acquired data includes information of a first shooting condition, configured in a discrete manner, information of a plurality of second shooting conditions provided for each information of the first shooting condition, and correction information corresponding to a combination of the information of the first shooting condition and the information of the second shooting condition. | 02-19-2015 |