Continuous illumination of backlit display and of subject for image capture

摘要

A device to capture an image includes a camera oriented to capture a first image of a subject and a display oriented to display a second image that is viewable by the subject. A backlight is coupled to the display to provide light that passes through the display toward the subject. An image processor is coupled to the camera and the backlight to adjust an amount of light provided by the backlight responsive to a quality of the first image. The light provided by the backlight may illuminate the subject and thereby improve the quality of the first image. The image processor may further adjust the amount of light provided by the backlight responsive to an ambient light level sensed by an ambient light sensor. The image processor may further adjust the second image to adjust an amount of light that passes through the display.

主权项

1. A method for capturing images of a user, the method comprising:
with an electronic device, receiving a first image captured by a first camera; with a display in the electronic device, emitting light to display the first image and illuminate the user; with a second camera in the electronic device, capturing at least a second image of the user; with image processing circuitry in the electronic device and using at least the second image of the user, determining that the user is not properly illuminated by determining that the quality of at least the second image of the user is below a given threshold; and in response to determining that the user is not properly illuminated, adjusting the light emitted by the display such that the user is properly illuminated, wherein adjusting the light emitted by the display comprises adjusting a brightness of the first image such that the user is properly illuminated, wherein adjusting the brightness of the first image such that the user is properly illuminated comprises increasing the brightness of dark areas of the first image relative to light areas of the first image to increase the amount of light that passes through the display.