Apparatus and method for compensating for variations in digital cameras
AssigneeApple Inc.
InventorsHaitao Guo, Ting Chen, David Kuo
Life of this patent
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Abstract
A method of manufacturing a digital video camera is provided. The method comprises acquiring video images of colored light, and measuring a light intensity response of the video camera to the colored light. The method further comprises comparing the intensity of the measured response to a desired colored light intensity for determining a color intensity bias and storing the intensity bias for the colored light in the camera so that the bias can be applied when the camera is operating at an arbitrary lighting condition.
Claims8
A method of manufacturing a digital video camera, comprising:
- acquiring video images at a plurality of ambient lighting conditions to obtain a plurality of red, green, and blue colored light biases storable in the camera;
- measuring a light intensity response of the video camera to one of red, green, or blue colored light acquired from the video image;
- comparing the intensity of the measured response to a desired red, green, or blue colored light intensity for determining a red, green, or blue color intensity bias;
- and
- storing the red, green, or blue intensity bias so that the bias can be applied to images captured when the camera is operating at an arbitrary lighting condition.
A method of manufacturing a digital camera, comprising:
- acquiring video images at a plurality of ambient lighting conditions;
- measuring a light intensity response of the camera to one of red, green, or blue colored light for each of the plurality of ambient lighting conditions;
- comparing the measured response intensity to a desired red, green, or blue colored light intensity for each of the plurality of ambient lighting conditions, to determine a plurality of red, green, or blue color intensity biases;
- and
- storing the plurality of red, green, or blue color intensity biases so that the plurality of biases can be applied when the camera is acquiring images in at least one of the plurality of ambient lighting conditions.
Dependencies are inferred from the claim text.