Abstract: The image processing device includes a gradation correction unit (gamma correction processing unit 33) which performs gradation correction, a restoration processing unit, a sharpening processing unit, a sharpening and recovery control unit 37 which is able to adjust a restoration rate of restoration processing and a sharpening rate of sharpening processing by controlling the restoration processing unit and the sharpening processing unit, a sharpening and recovery control unit 37 which acquires a total sharpening and restoration rate based on the restoration rate and the sharpening rate and one rate of the restoration rate and the sharpening rate and calculates the other rate of the restoration rate and the sharpening rate based on the total sharpening and restoration rate, and a brightness information acquisition unit. The sharpening and recovery control unit adjusts the restoration rate and the sharpening rate according to acquired brightness information.

Abstract: A first restoration processing section 110 and a second restoration processing section 120 perform restoration processing on images (luminance data Y), which are successively captured by an image capture section, using a first filter 102, which is a restoration filter generated corresponding to a point spread function of an optical system, and a second filter 104 of which a restoration strength is weaker than that of the first filter 102. Depending on a result of determination which is input from an in-focus determination section 150 and indicates whether or not the image at the current time point is in a target in-focus state, a selection section 122 selects and outputs either luminance data YA which is processed using the first filter 102 or luminance data YB which is processed using the second filter 104.

Abstract: A restoration filter based on a point spread function of an optical system is applied to source image data acquired through photographing using the optical system to acquire restored image data (S13: filter application step). Adjustment of an amplification factor of the difference between source image data and restored image data is performed, and recovered image data is acquired from the difference after adjustment and source image data (S15: gain adjustment step). In the filter application step, a common filter determined regardless of a value of a magnification of an optical zoom of the optical system is used as the restoration filter, and in the gain adjustment step, the amplification factor is determined based on the magnification of the optical zoom of the optical system.

Abstract: Disclosed are an image processing device, an imaging device, an image processing method, and a program capable of acquiring a moving image with excellent image quality while maintaining continuity of a restoration process between frames even if there is a rapid change of a photographing environment in a moving image. An image processing device includes a restoration control processing unit 36 which subjects a moving image including a plurality of frames acquired by photographing using an optical system to a restoration process based on a point spread function of the optical system to acquire recovered image data. The restoration control processing unit 36 controls the restoration process for a frame to be processed among a plurality of frames based on imaging information of a reference frame including a frame after the frame to be processed in a time series.

Abstract: An imaging device 10 according to one aspect of the present invention includes: a subject distance acquisition section 115; a movement amount acquisition section 120 that acquires an amount of movement of the subject on the basis of the subject distance; a restoration processing determination section 125 that determines, on the basis of the amount of movement acquired by the movement amount acquisition section 120, whether the restoration processing should be performed on the images through a restoration filter, a restoration strength of the restoration processing should be adjusted and the restoration processing should be performed on the images, or the restoration processing should not be performed on the images; and a restoration processing execution section 105 that performs the restoration processing on the images through the restoration filter or with the adjusted restoration strength, on the basis of the determination of the restoration processing determination section 125.

Abstract: An imaging device 10 according to an aspect of the present invention includes: an image generation section 100 that generates a moving image; a filter acquisition section 105 that acquires a restoration filter corresponding to a transfer function for the point distribution of an optical system; an aperture value detection section 110 that detects an aperture value of the optical system; a restoration processing determination section 115 that determines whether or not the aperture value detected by the aperture value detection section 110 is equal to or greater than a small-aperture-blurring reference aperture value; and a restoration processing execution section 120 that executes the restoration processing on the moving image through the restoration filter, in case where the restoration processing determination section 115 determines that the aperture value detected by the aperture value detection section 110 is equal to or greater than the small-aperture-blurring reference aperture value.

Abstract: Source image data is subjected to a logarithmic process (gamma correction process) (S11), and the luminance distribution of source image data is acquired (S12). Then, it is determined whether or not the luminance distribution of source image data corresponds to “a high luminance scene (highlight scene) biased toward a high luminance side” based on a characteristic of a luminance value equal to or greater than a first threshold value in the luminance distribution of source image data (S13). According to the determination result (Y/N of S13), a restoration process based on a point spread function of an optical system is controlled (S14, S15). A restoration filter which is used in the restoration process has a filter coefficient corresponding to image data before the logarithmic process.