摘要:
An image processing system for properly correcting brightness of a subject area and a background area of a captured image. The image processing system includes an image capturing apparatus, including: an image capturing instruction unit for generating a first instruction signal and a second instruction signal for instructing a capturing of the subject; and an image pick-up unit for capturing a first image of the subject in response to the first instruction signal, and a second image of the subject in response to the second instruction signal. The image processing system also includes an image processing apparatus, including: a backlight status detector for detecting backlight status based on the first image and the second image; and a correction unit for correcting the second image when the backlight status detector detects the backlight status.
摘要:
An image processing system for properly correcting brightness of a subject area and a background area of a captured image. The image processing system includes an image capturing apparatus, including: an image capturing instruction unit for generating a first instruction signal and a second instruction signal for instructing a capturing of the subject; and an image pick-up unit for capturing a first image of the subject in response to the first instruction signal, and a second image of the subject in response to the second instruction signal. The image processing system also includes an image processing apparatus, including: a backlight status detector for detecting backlight status based on the first image and the second image; and a correction unit for correcting the second image when the backlight status detector detects the backlight status.
摘要:
An image capturing apparatus for acquiring images having high dynamic range. The image capturing apparatus includes CCD consisting of a first photo detector for detecting light from central area of a subject, a second photo detector for detecting light from marginal area of the subject, a photometry sensor for measuring brightness of the central and the marginal areas of the subject, and a sensitivity control unit for controlling sensitivity of the first photo detector based on the brightness of the central area measured by the photometry sensor and controlling sensitivity of the second photo detector based on the brightness of the marginal area measured by the photometry sensor.
摘要:
An image capturing apparatus for acquiring images having high dynamic range. The image capturing apparatus includes CCD consisting of a first photo detector for detecting light from central area of a subject, a second photo detector for detecting light from marginal area of the subject, a photometry sensor for measuring brightness of the central and the marginal areas of the subject, and a sensitivity control unit for controlling sensitivity of the first photo detector based on the brightness of the central area measured by the photometry sensor and controlling sensitivity of the second photo detector based on the brightness of the marginal area measured by the photometry sensor.
摘要:
An image processing system for properly correcting brightness of a subject area and a background area of a captured image. The image processing system includes an image capturing apparatus, including: an image capturing instruction unit for generating a first instruction signal and a second instruction signal for instructing a capturing of the subject; and an image pick-up unit for capturing a first image of the subject in response to the first instruction signal, and a second image of the subject in response to the second instruction signal. The image processing system also includes an image processing apparatus, including: a backlight status detector for detecting backlight status based on the first image and the second image; and a correction unit for correcting the second image when the backlight status detector detects the backlight status.
摘要:
An image processing system for properly correcting brightness of a subject area and a background area of a captured image. The image processing system includes an image capturing apparatus, including: an image capturing instruction unit for generating a first instruction signal and a second instruction signal for instructing a capturing of the subject; and an image pick-up unit for capturing a first image of the subject in response to the first instruction signal, and a second image of the subject in response to the second instruction signal. The image processing system also includes an image processing apparatus, including: a backlight status detector for detecting backlight status based on the first image and the second image; and a correction unit for correcting the second image when the backlight status detector detects the backlight status.
摘要:
An image processing system for properly correcting brightness of a subject area and a background area of a captured image. The image processing system includes an image capturing apparatus, including: an image capturing instruction unit for generating a first instruction signal and a second instruction signal for instructing a capturing of the subject; and an image pick-up unit for capturing a first image of the subject in response to the first instruction signal, and a second image of the subject in response to the second instruction signal. The image processing system also includes an image processing apparatus, including: a backlight status detector for detecting backlight status based on the first image and the second image; and a correction unit for correcting the second image when the backlight status detector detects the backlight status.
摘要:
An image combined high sensitivity image and low sensitivity image is provided with well-adjusted white balance and broad dynamic range. The image is obtained by multiplying the combined data by total gain that depends on scene. A white balance is adjusted with gain value calculated from of high output image data. Lv value representing luminance is calculated and compared with a threshold to decide whether or not the high sensitivity image and the low sensitivity image should be combined. First gamma correction unit performs gamma-correction for the image signal derived from the high sensitivity signal with first gamma character, second gamma correction unit performs gamma-correction for the image signal derived from the low sensitivity signal with second gamma character that is different from the first gamma character, and addition unit combines the image signal from the first gamma correction unit and the image signal from the second gamma correction unit.
摘要:
An image combined high sensitivity image and low sensitivity image is provided with well-adjusted white balance and broad dynamic range. The image is obtained by multiplying the combined data by total gain that depends on scene. A white balance is adjusted with gain value calculated from of high output image data. Lv value representing luminance is calculated and compared with a threshold to decide whether or not the high sensitivity image and the low sensitivity image should be combined. First gamma correction unit performs gamma-correction for the image signal derived from the high sensitivity signal with first gamma character, second gamma correction unit performs gamma-correction for the image signal derived from the low sensitivity signal with second gamma character that is different from the first gamma character, and addition unit combines the image signal from the first gamma correction unit and the image signal from the second gamma correction unit.
摘要:
A received light quantity detection device where high-sensitivity pixels and low-sensitivity pixels are formed is used for photometry. It is possible to perform measurement over the low range (for example, 0[EV] through 8[EV]with a single occasion of photometry. In the case that both the high-sensitivity pixels and the low-sensitivity pixels are saturated, it is possible to perform further measurement over the high range (for example, 8[EV] through 16[EV]) by narrowing the aperture or increasing the electronic shutter speed for retried photometry with a retried photometry. This reduces the time required to calculate a correct exposure value on image pickup apparatus such as a camera.