Method, system and computer program product for enhancing white balance of an image
AssigneeTexas Instruments Incorporated
InventorBuyue Zhang
Life of this patent
Estimating the term…
Abstract
In response to an image, a likelihood of flicker within the image is estimated. In response to the estimated likelihood, references are selected from among first and second sets of references. The first set of references are responsive to a first set of reference images captured under particular illumination. The second set of references are responsive to a second set of reference images captured under fluorescent illumination. In response to the selected references, one or more gains are generated for enhancing white balance of the image.
Claims27
A method performed by at least one device for enhancing white balance of an image, the method comprising:
- in response to the image, estimating a likelihood of flicker within the image;
- in response to the estimated likelihood, selecting references from among first and second sets of references, wherein the first set of references are responsive to a first set of reference images captured under particular illumination, and wherein the second set of references are responsive to a second set of reference images captured under fluorescent illumination;
- and
- in response to the selected references, generating one or more gains for enhancing white balance of the image.
A system for enhancing white balance of an image, the system comprising:
- at least one device for:
- in response to the image, estimating a likelihood of flicker within the image;
- in response to the estimated likelihood, selecting references from among first and second sets of references, wherein the first set of references are responsive to a first set of reference images captured under particular illumination, and wherein the second set of references are responsive to a second set of reference images captured under fluorescent illumination;
- and,
- in response to the selected references, generating one or more gains for enhancing white balance of the image.
A computer program product for enhancing white balance of an image, the computer program product comprising:
- a tangible computer-readable storage medium;
- and
- a computer-readable program stored on the tangible computer-readable storage medium, wherein the computer-readable program is processable by an information handling system for causing the information handling system to perform operations including:
- in response to the image, estimating a likelihood of flicker within the image;
- in response to the estimated likelihood, selecting references from among first and second sets of references, wherein the first set of references are responsive to a first set of reference images captured under particular illumination, and wherein the second set of references are responsive to a second set of reference images captured under fluorescent illumination;
- and, in response to the selected references, generating one or more gains for enhancing white balance of the image.
A system for enhancing white balance of an image, the system comprising:
- a sensor for capturing:
- the image and other images within a video sequence;
- a first set of reference images under a variety of particular illumination;
- and a second set of reference images under a variety of fluorescent illumination;
- a display device for displaying the image;
- at least one device for:
- generating a first set of references in response to the first set of reference images;
- generating a second set of references in response to the second set of reference images;
- in response to the image and the other images within the video sequence, estimating a likelihood of flicker within the image, wherein the likelihood of flicker indicates a likelihood that the image was captured under fluorescent illumination;
- in response to the estimated likelihood being higher than a threshold, selecting both the first and second sets of references;
- in response to the estimated likelihood being not higher than the threshold, selecting only the first set of references;
- and, in response to the selected references, generating respective gains for adjusting colors of the image in rendering of the image on the display device.
Dependencies are inferred from the claim text.