Imaging apparatus and control method for imaging apparatus

An imaging apparatus comprising at least one memory and at least one processor which function as:

• an exposure control unit configured to perform exposure control so that a representative brightness of a high brightness region of an image approaches a target brightness set by a user;
• and
• a tone correction unit configured to perform tone correction on a captured image, which was captured after performing the exposure control, based on a brightness of a dark portion which is a region having a brightness lower than the high brightness region, wherein
• the tone correction unit adjusts a correction amount of the tone correction so that an intensity of the tone correction is lower in a first brightness range in which brightness is at least a control point than in a second brightness range in which brightness is less than the control point and the representative brightness of the high brightness region, which is corrected to be higher than the target brightness by the tone correction, becomes close to the target brightness.

An imaging apparatus comprising at least one memory and at least one processor which function as:

• an exposure control unit configured to perform exposure control so that a representative brightness of a high brightness region of an image approaches a target brightness set by a user;
• a tone correction unit configured to perform tone correction on a captured image, which was captured after performing the exposure control, based on a brightness of a dark portion which is a region having a brightness lower than the high brightness region;
• and
• an acquisition unit configured to acquire a matching degree between a first region which includes the high brightness region and a second region which includes a main subject, wherein
• the tone correction unit adjusts a correction amount of the tone correction so that the representative brightness of the high brightness region, which is corrected to be higher than the target brightness by the tone correction, becomes close to the target brightness, by adjusting the output brightness corresponding to the brightness of the dark portion in the tone correction using a second adjustment coefficient in accordance with the matching degree, and adjusting each output brightness corresponding to each brightness of the captured image.

A control method for an imaging apparatus comprising:

• an exposure control step of performing exposure control so that a representative brightness of a high brightness region of an image approaches a target brightness set by a user;
• a tone correction step of performing tone correction on a captured image, which was captured after performing the exposure control, based on a brightness of a dark portion which is a region having a brightness lower than the high brightness region;
• and
• an acquisition step of acquiring a matching degree between a first region which includes the high brightness region and a second region which includes a main subject, wherein
• in the tone correction step, a correction amount of the tone correction is adjusted so that the representative brightness of the high brightness region, which is corrected to be higher than the target brightness by the tone correction, becomes close to the target brightness, by adjusting the output brightness corresponding to the brightness of the dark portion in the tone correction using a second adjustment coefficient in accordance with the matching degree, and adjusting each output brightness corresponding to each brightness of the captured image.

A non-transitory computer readable medium that stores a program, wherein the program causes a computer to execute:

• an exposure control step of performing exposure control so that a representative brightness of a high brightness region of an image approaches a target brightness set by a user;
• a tone correction step of performing tone correction on a captured image, which was captured after performing the exposure control, based on a brightness of a dark portion which is a region having a brightness lower than the high brightness region;
• and
• an acquisition step of acquiring a matching degree between a first region which includes the high brightness region and a second region which includes a main subject, wherein
• in the tone correction step, a correction amount of the tone correction is adjusted so that the representative brightness of the high brightness region, which is corrected to be higher than the target brightness by the tone correction, becomes close to the target brightness, by adjusting the output brightness corresponding to the brightness of the dark portion in the tone correction using a second adjustment coefficient in accordance with the matching degree, and adjusting each output brightness corresponding to each brightness of the captured image.

A control method for an imaging apparatus comprising:

• an exposure control step of performing exposure control so that a representative brightness of a high brightness region of an image approaches a target brightness set by a user;
• and
• a tone correction step of performing tone correction on a captured image, which was captured after performing the exposure control, based on a brightness of a dark portion which is a region having a brightness lower than the high brightness region, wherein
• in the tone correction step, a correction amount of the tone correction is adjusted so that the representative brightness of the high brightness region, which is corrected to be higher than the target brightness by the tone correction, becomes close to the target brightness, by adjusting an output brightness corresponding to the brightness of the dark portion using a first adjustment coefficient, which is equivalent to a weaking amount corresponding to the target brightness, and by adjusting, based on an adjusted output brightness corresponding to the brightness of the dark portion, each output brightness corresponding to each brightness of the captured image.

A non-transitory computer readable medium that stores a program, wherein the program causes a computer to execute:

• an exposure control step of performing exposure control so that a representative brightness of a high brightness region of an image approaches a target brightness set by a user;
• and
• a tone correction step of performing tone correction on a captured image, which was captured after performing the exposure control, based on a brightness of a dark portion which is a region having a brightness lower than the high brightness region, wherein
• in the tone correction step, a correction amount of the tone correction is adjusted so that the representative brightness of the high brightness region, which is corrected to be higher than the target brightness by the tone correction, becomes close to the target brightness, by adjusting an output brightness corresponding to the brightness of the dark portion using a first adjustment coefficient, which is equivalent to a weaking amount corresponding to the target brightness, and by adjusting, based on an adjusted output brightness corresponding to the brightness of the dark portion, each output brightness corresponding to each brightness of the captured image.

A control method for an imaging apparatus comprising:

• an exposure control step of performing exposure control so that a representative brightness of a high brightness region of an image approaches a target brightness set by a user;
• and
• a tone correction step of performing tone correction on a captured image, which was captured after performing the exposure control, based on a brightness of a dark portion which is a region having a brightness lower than the high brightness region, wherein
• in the tone correction step, a correction amount of the tone correction is adjusted so that an intensity of the tone correction is lower in a first brightness range in which brightness is at least a control point than in a second brightness range in which brightness is less than the control point and the representative brightness of the high brightness region, which is corrected to be higher than the target brightness by the tone correction, becomes close to the target brightness.

A non-transitory computer readable medium that stores a program, wherein the program causes a computer to execute:

• an exposure control step of performing exposure control so that a representative brightness of a high brightness region of an image approaches a target brightness set by a user;
• and
• a tone correction step of performing tone correction on a captured image, which was captured after performing the exposure control, based on a brightness of a dark portion which is a region having a brightness lower than the high brightness region, wherein
• in the tone correction step, a correction amount of the tone correction is adjusted so that an intensity of the tone correction is lower in a first brightness range in which brightness is at least a control point than in a second brightness range in which brightness is less than the control point and the representative brightness of the high brightness region, which is corrected to be higher than the target brightness by the tone correction, becomes close to the target brightness.