Apparatus and method for optimizing a light source for image capturing

摘要

Image saturation of a sensor pixel array is reduced by adjusting RGB color channel gains for an LED light source. Pixel saturation information is obtained from a sensor pixel array with an image on it illuminated by the LED light source. It is then analyzed to determine saturation levels of the captured image for each RGB component of the LED light source. The gain of each RGB color channel of the LED light source is then adjusted to reduce pixel saturation when using the LED light source for image capturing.

主权项

1. An apparatus for obtaining an image, comprising:
an image sensor with an array of pixels; and a light source controller that controls a light source to assist the image sensor in capturing an image with the array of pixels; wherein the light source controller uses pixel saturation information from at least a portion of the pixel array to adjust a color spectrum produced by the light source during illumination.