Canon Kabushiki Kaisha

Akihito Shin

Keisuke Matsuno

Tadayoshi Ono

Taketoshi Kinoshita

An apparatus includes a first brightness value acquisition unit configured to obtain a first absolute brightness value by converting a representative brightness value of an image obtained using an image pickup unit, into absolute brightness, a first determination unit configured to determine an output value based on an input-output characteristic of an output device, the output value corresponding to the first absolute brightness value obtained by the first brightness value acquisition unit, and a second determination unit configured to determine information about exposure corresponding to the output value.

Image processing apparatus, and image processing method

An image processing apparatus comprises: a conversion unit configured to convert a characteristic of an image signal; and a display control unit configured to generate information indicating a relationship of image signals before and after conversion is performed by the conversion unit, and cause a display to display the information indicating a relationship of image signals, wherein the display control unit generates the information indicating a relationship of image signals, so as to include information indicating a relationship of scales of signals before and after conversion and information indicating a relationship of signal values before and after conversion.

Image processing apparatus, control method thereof, and storage medium

An image processing apparatus receives an input of an image signal obtained by imaging an object, and performs signal conversion on the image signal to output the image signal to a display apparatus. The image processing apparatus includes a calculation unit configured to calculate an absolute luminance value of the object from a luminance value of the object acquired from the image signal and an exposure parameter in the imaging, a determination unit configured to determine a predetermined absolute luminance code for the luminance value of the object according to input-output characteristics of the display apparatus so that the object is displayed at the absolute luminance value on the display apparatus, and a conversion unit configured to perform signal conversion for converting the image signal based on a relationship between the luminance value of the object and the absolute luminance code.

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Kawasaki, Japan

Akihito Shin