Canon Kabushiki Kaisha

Kenzo Hisa

Takeshi Ikeda

Takenori Kobuse

Keisuke Matsuno

Taketoshi Kinoshita

An image capturing apparatus comprises an image sensor in which a plurality of pixels are arranged two-dimensionally, wherein each of the pixels have a photoelectric conversion portion, a holding portion that holds a charge obtained by the photoelectric conversion portion, an amplification portion that outputs a signal based on a charge outputted from the holding portion, a first transfer switch that transfers the charge from the photoelectric conversion portion to the holding portion, and a second transfer switch that transfers the charge from the holding portion to the amplification portion; and a controller that controls a number of times that the first transfer switch is turned on in relation to the second transfer switch being turned on one time.

Image capturing apparatus and method of controlling the same

An image capture apparatus that allows the user to easily change the brightness of an image that is shot while using automatic exposure control is disclosed. The image capture apparatus comprises a setting unit configured to be able to set a reference value of proper exposure. The image capture apparatus determines exposure conditions based on the luminance information and the reference value, wherein the reference value is a value used as a reference exposure value from which exposure conditions are varied in an exposure compensation.

Image capture apparatus and control method thereof

An imaging apparatus includes an imaging device, an optical member that adjusts an amount of light of an object image incident on the imaging device, at least one memory storing a program, and at least one processor that when executing the program is configured to adjust transmittance of the optical member, amplify an image signal output when an image of an object is captured using the imaging device, and control exposure by changing an exposure condition including an exposure index.

Imaging apparatus, method of controlling imaging apparatus, and recording medium

An image capturing apparatus includes: an image capturing unit for capturing an object image; an expander for expanding the dynamic range of the image capturing unit by reducing the exposure of the image capturing unit; a tone correction unit for performing tone correction on image data; a display unit for displaying a display image obtained by the tone correction unit; a detection unit for detecting signal values of a region within a screen of the image capturing unit after the expander expands the dynamic range; and a control unit for, in the case where the dynamic range is expanded, changing a characteristic of tone correction so as to suppress change in the display image caused by the change in the dynamic range.

Image capturing apparatus, method for controlling the same, and storage medium

An image capture apparatus comprises an image capturing unit that captures an object image and outputs image data; a photometric value acquisition unit that acquires, from the image data, a first photometric value and a second photometric value different from the first photometric value; and an exposure change unit that changes exposure such that the first photometric value comes close to a target value, wherein the exposure change unit calculates a third photometric value based on the first photometric value, the target value, and the second photometric value and corrects the exposure in accordance with a difference between the third photometric value and a reference value.

Image capture apparatus and method of controlling the same

An image processing apparatus is provided in which, even if a nonlinear characteristic of a luminance-type gamma correction circuit for converting a luminance signal is changed, saturation with respect to a luminance output can be nearly constant. A signal amount of the luminance signal generated from image data that exceeds a previously defined threshold is calculated. A first nonlinear characteristic is selected from a plurality of nonlinear characteristics previously set depending on the calculated signal amount. Nonlinear conversation is performed on a signal generated from the image data to determine luminance with the selected first nonlinear characteristic. An output ratio of the first nonlinear characteristic to a second nonlinear characteristic is prepared and the second nonlinear characteristic is defined so that the output ratio is satisfied. Nonlinear conversion is performed on a signal that has been generated from the image data to determine saturation with the selected second nonlinear characteristic.

Image processing apparatus having luminance-type gamma correction circuit capable of changing nonlinear characteristic, and image processing method therefor

An imaging apparatus includes, an imaging unit configured to output an image signal of a captured object, a processing unit configured to perform a signal processing on the image signal, wherein the processing unit includes a cyclic noise reduction unit configured to reduce a noise of the image signal, a parameter change unit configured to change a parameter concerning at least one of an imaging by the imaging unit and the signal processing, and a coefficient change unit configured to change a cyclic coefficient of the cyclic noise reduction unit.

Growing community of inventors

Inagi, Japan

Kenzo Hisa