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US 11,906,895 B2Granted
Method and system for blending images captured under different strobe conditions
AssigneeMediatek Inc.
InventorsPo-Yu Yeh, Shao-Hsiang Chang, Chia-Ping Chen, Keh-Tsong Li, Gang-Wei Fan
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Abstract
An image capture method for flash photography includes: capturing at least one first image while a strobe device is operating under a first strobe intensity setting for emitting main flash, capturing at least one second image while the strobe device is operating under a second strobe intensity setting different from the first strobe intensity setting, and generating an output image by blending the at least one first image and the at least one second image.
Claims18
An image capture method for flash photography, comprising:
- capturing at least one first image while a strobe device is operating under a first strobe intensity setting for emitting main flash;
- capturing at least one second image while the strobe device is operating under a second strobe intensity setting, wherein the second strobe intensity setting is different from the first strobe intensity setting;
- and
- generating an output image by blending the at least one first image and the at least one second image;
- before the at least one first image and the at least one second image are captured:
- capturing at least one third image while the strobe device is operating under a third strobe intensity setting for emitting pre-flash;
- capturing at least one fourth image while the strobe device is operating under a fourth strobe intensity setting, wherein the fourth strobe intensity setting is different from the third strobe intensity setting;
- and
- generating a map according to image statistics of the at least one third image and image statistics of the at least one fourth image, wherein the map records image characteristics at different pixel locations;
- wherein generating the output image by blending the at least one first image and the at least one second image comprises:
- blending the at least one first image and the at least one second image according to the map.
8 more elements
An image capture system for flash photography, comprising:
- an image capture circuit, arranged to capture at least one first image under a first strobe intensity setting of main flash, and capture at least one second image under a second strobe intensity setting of the main flash, wherein the second strobe intensity setting is different from the first strobe intensity setting;
- and
- a data processing circuit, arranged to generate an output image by blending the at least one first image and the at least one second image;
- wherein before the at least one first image and the at least one second image are captured, the image capture circuit is further arranged to capture at least one third image under a third strobe intensity setting of pre-flash, and capture at least one fourth image under a fourth strobe intensity setting of the pre-flash, wherein the fourth strobe intensity setting is different from the third strobe intensity setting;
- and
- the data processing circuit is further arranged to generate a map according to image statistics of the at least one third image and image statistics of the at least one fourth image, wherein the map records image characteristics at different pixel locations, and the data processing circuit is arranged to blend the at least one first image and the at least one second image according to the map.
3 more elements
Dependencies are inferred from the claim text.