Embodiments provide techniques for adjusting coloration of an image. A first selection of first one or more reference points within a first image is received. A second selection of a second one or more reference points within a second image is also received. Embodiments determine a coloration difference between a coloration of the first one or more reference points within the first image and a coloration of the second one or more reference points within the second image. The coloration of at least a portion of the first image is then adjusted, based on the determined coloration difference.
BACKGROUND(1) Field of the Invention(2) Embodiments described herein relate to color balancing techniques, and more specifically to color balancing an image (or frame) based on comparisons between the image and a reference image.(3) Description of the Related Art(4) Computer graphics technology has come a long way since video games were first developed. Relatively inexpensive 3D graphics engines now provide nearly photo-realistic interactive game play on hand-held video game, home video game and personal computer hardware platforms costing only a few hundred dollars. These video game systems typically include a hand-held controller, game controller, or, in the case of a hand-held video game platform, an integrated controller. A user or player uses the controller to send commands or other instructions to the video game system to control a video game or other simulation being played. For example, the controller may be provided with a manipulator (e.g., a joystick) and buttons operated by the user.(5) Many hand-held gaming devices include some form of camera device which may be used to capture an image or a series of images of a physical, real-world scene. The captured images can then be displayed, for instance, on a display of the hand-held gaming device. Certain devices may be configured to insert virtual objects into the captured images before the images are displayed. Additionally, other devices or applications may enable users to draw or paint particular within a captured i
1. A computer-implemented method of adjusting coloration, the computer-implemented comprising: receiving a selection of one or more source reference points within a source image depicting a source lighting condition; receiving a selection of one or more target reference points within a target image depicting a target lighting condition distinct from the source lighting condition; determining a coloration difference between a coloration of the one or more source reference points within the source image and a coloration of the one or more target reference points within the target image; and normalizing the distinct, depicted source and target lighting conditions by adjusting, by operation of one or more computer processors, the coloration of at least a portion of the source image based on the determined coloration difference and to correspond more closely to the coloration of the target image, whereafter the source image is output.
11. A non-transitory computer-readable medium containing computer program code executable to perform an operation for adjusting coloration, the operation comprising: receiving a selection of one or more source reference points within a source image depicting a source lighting condition; receiving a selection of one or more target reference points within a target image depicting a target lighting condition distinct from the source lighting condition; determining a coloration difference between a coloration of the one or more source reference points within the source image and a coloration of the one or more target reference points within the target image; and normalizing the distinct, depicted source and target lighting conditions by adjusting, by operation of one or more computer processors when executing the computer program code, the coloration of at least a portion of the source image based on the determined coloration difference and to correspond more closely to the coloration of the target image, whereafter the source image is output.
16. A system of adjusting coloration, the system comprising: one or more computer processors; and a memory containing computer program code that, when executed by the one or more computer processors, performs an operation comprising: receiving a selection of one or more source reference points within a source image depicting a source lighting condition; receiving a selection of one or more target reference points within a target image depicting a target lighting condition distinct from the source lighting condition; determining a coloration difference between a coloration of the one or more source reference points within the source image and a coloration of the one or more target reference points within the target image; and normalizing the distinct, depicted source and target lighting conditions by adjusting the coloration of at least a portion of the source image based on the determined coloration difference and to correspond more closely to the coloration of the target image, whereafter the source image is output.