METHOD OF CALIBRATING SENSITIVITY GAIN
First Claim
1. A method of calibrating sensitivity gain, comprising:
- providing a standard light source;
calibrating an imaging device by the standard light source in a preview mode, thereby obtaining a standard sensitivity gain of the preview mode;
calibrating the imaging device by the standard light source in a capture mode, thereby obtaining a standard sensitivity gain of the capture mode; and
determining a gain ratio of the standard sensitivity gain of the capture mode to the standard sensitivity gain of the preview mode;
wherein the gain ratio is used to deduce exposure parameters of the capture mode according to exposure parameters of the preview mode when operating the imaging device.
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Abstract
The present invention is directed to a method of calibrating sensitivity gain. In a preview mode, an imaging device is calibrated by a standard light source, therefore obtaining standard sensitivity gain of the preview mode. In a capture mode, the imaging device is calibrated by the standard light source, therefore obtaining standard sensitivity gain of the capture mode. A gain ratio of the standard sensitivity gain of the capture mode to the standard sensitivity gain of the preview mode is determined, and is then used to deduce the exposure parameters of the capture mode according to the exposure parameters of the preview mode.
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Citations
13 Claims
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1. A method of calibrating sensitivity gain, comprising:
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providing a standard light source; calibrating an imaging device by the standard light source in a preview mode, thereby obtaining a standard sensitivity gain of the preview mode; calibrating the imaging device by the standard light source in a capture mode, thereby obtaining a standard sensitivity gain of the capture mode; and determining a gain ratio of the standard sensitivity gain of the capture mode to the standard sensitivity gain of the preview mode; wherein the gain ratio is used to deduce exposure parameters of the capture mode according to exposure parameters of the preview mode when operating the imaging device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification