Electronic flash, electronic camera and light emitting head
AssigneeFUJIFILM Corporation
InventorChikuni Kawakami
Life of this patent
Estimating the term…
Abstract
An electronic camera having an electronic flash including a plurality of light emitting diodes (LEDs) that emit different wavelength light is disclosed. Electric energy is supplied to a capacitor to the LEDs. A system controller controls light emitting amounts of the LEDs so that a color temperature of the electronic flash light becomes a color temperature that has been manually set with a color temperature setting switch or a color temperature of a light source determined by color temperature sensors.
Claims25
An electronic camera comprising:
- an imager configured to capture a color image of a subject;
- a flash light source having a plurality of light emitting diodes which have different color lights, the flash light source emitting a light towards the subject with the plurality of light emitting diodes;
- a processor configured to
- determine a color temperature of an ambient light of the subject from a first color image captured by the imager,
- determine a target ratio of light emission amounts between the plurality of light emitting diodes according to the color temperature,
- adjust the flash light source to emit an adjusted light according to the target ratio,
- control the imager to capture a second color image under the adjusted light, and
- perform a white balance control of the second color image according to a correction value which is determined from the second color image;
- and
- a monitor configured to display the second color image subjected to the white balance control.
An image processing method for an electronic camera including an imager, a monitor and a flash light source having a plurality of light emitting diodes, the image processing method comprising:
- capturing a first color image of a subject by the imager;
- determining a color temperature of an ambient light of the subject from the first color image;
- determining a target ratio of light emission amounts between the plurality of light emitting diodes according to the color temperature;
- adjusting the flash light source to emit an adjusted light according to the target ratio;
- capturing a second color image of the subject under the adjusted light by the imager;
- performing a white balance control of the second color image according to a correction value which is determined from the second color image;
- and
- displaying the second color image subjected to the white balance control on the monitor.
Dependencies are inferred from the claim text.