System and method for camera metering based on flesh tone detection
First Claim
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1. A method of adjusting exposure settings for a digital camera, comprising:
- searching at least a portion of the field of view of the camera for individual pixels having a flesh tone;
analyzing the flesh tone pixels to identify at least one flesh tone spot, the at least one flesh tone spot identified by;
establishing flesh tone groups by associating each flesh tone pixel with any other flesh tone pixels that are less than a specified distance away, andretaining groups that have an identifiable shape attributable to a portion of a body of a subject;
conducting spot metering of the field of view of the camera such that at least one flesh tone spot is given greater weight than the rest of the field of view; and
adjusting the exposure settings based on the spot metering.
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Abstract
A method of adjusting exposure settings for a digital camera includes searching at least a portion of the field of view of the camera for pixels having a flesh tone. The flesh tone pixels are analyzed to identify at least one flesh tone spot. Spot metering of the field of view of the camera is carried out such that at least one flesh tone spot is given greater weight than the rest of the field of view. Then, the exposure settings are adjusted based on the spot metering.
14 Citations
20 Claims
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1. A method of adjusting exposure settings for a digital camera, comprising:
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searching at least a portion of the field of view of the camera for individual pixels having a flesh tone; analyzing the flesh tone pixels to identify at least one flesh tone spot, the at least one flesh tone spot identified by; establishing flesh tone groups by associating each flesh tone pixel with any other flesh tone pixels that are less than a specified distance away, and retaining groups that have an identifiable shape attributable to a portion of a body of a subject; conducting spot metering of the field of view of the camera such that at least one flesh tone spot is given greater weight than the rest of the field of view; and adjusting the exposure settings based on the spot metering. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A camera comprising:
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a sensor for imaging a field of view and outputting a signal indicative of luminance and color for a plurality of pixels; and a controller that adjusts exposure settings of the camera by identifying which individual pixels have a flesh tone from at least a portion of the field of view, analyzing the flesh tone pixels to identify at least one flesh tone spot, the at least one flesh tone spot identified by establishing flesh tone pixel groups by associating each flesh tone pixel with any other flesh tone pixels that are less than a specified distance away, and retaining groups that have an identifiable shape attributable to a portion of a body of a subject, conducting spot metering of the field of view such that at least one flesh tone spot is given greater weight than the rest of the field of view and adjusting the exposure settings based on the spot metering. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification