Image processing apparatus, imaging apparatus, image processing method, and white balance adjustment method
AssigneeFUJIFILM Corporation
InventorsTetsuro ASHIDA, Satoru OBINATA
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Abstract
In an image processing method according to an aspect of the presently disclosed subject matter, a captured image obtained by continuous imaging is acquired, the captured image is divided into a plurality of divided areas, a flicker that flashes is detected for each of the divided areas, it is detected, for each of the divided areas where the flicker has been detected, whether a divided area is an LED area including light from a light emitting diode (LED) based on a luminance difference between a luminance in a turn-on state and a luminance in an turn-off state, and LED area information is output.
Claims21
An image processing apparatus comprising:
- image acquisition means configured to acquire a captured image obtained by continuous imaging;
- flicker detection means configured to divide the captured image into a plurality of divided areas and detect a flicker that flashes for each of the divided areas;
- and
- comparison means configured to detect, for each of the divided areas where the flicker has been detected, whether a divided area is an LED area including light from a light-emitting diode (LED) based on a luminance difference between a luminance in a turn-on state of the divided area and a luminance thereof in a turn-off state, and output LED area information representing the LED area within the captured image.
An image processing method comprising:
- a step of acquiring a captured image obtained by continuous imaging;
- a step of dividing the captured image into a plurality of divided areas;
- a step of detecting a flicker that flashes for each of the divided areas;
- and
- a step of detecting, for each of the divided areas where the flicker has been detected, whether a divided area is an LED area including light from an LED based on a luminance difference between a luminance in a turn-on state of the divided area and a luminance thereof in a turn-off state;
- and
- a step of outputting LED area information representing the LED area within the captured image.
A white balance adjustment method comprising:
- a step of acquiring a captured image obtained by continuous imaging;
- a step of dividing the captured image into a plurality of divided areas;
- a step of detecting a flicker that flashes for each of the divided areas;
- a step of detecting, for each of the divided areas where the flicker has been detected, whether a divided area is an LED area including light from an LED based on a luminance difference between a luminance in a turn-on state of the divided area and a luminance thereof in a turn-off state, and generating LED area information representing the LED area within the captured image;
- a white balance calculation step of calculating a white value adjustment value based on the LED area information detected;
- and
- a step of adjusting a white balance of the captured image or an image, which has been captured subsequently to the captured image, based on the calculated white balance adjustment value.
Dependencies are inferred from the claim text.