Method and device for image haze removal
AssigneeAgency for Science, Technology and Research
InventorsZhengguo Li, Jinghong Zheng
Life of this patent
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Abstract
Various embodiments provide a method of processing an input image to generate a de-hazed image. The method may include determining an atmospheric light based on the input image; determining a medium transmission map by applying an edge-preserving smoothing filter to the input image; and recovering scene radiances of the input image based on the determined atmospheric light and the determined medium transmission map. The recovered scene radiances form the de-hazed image.
Claims17
A method of processing an input image to generate a de-hazed image, the method comprising:
- determining an atmospheric light based on the input image;
- determining a medium transmission map by applying an edge-preserving smoothing filter to the input image;
- and
- recovering scene radiances of the input image based on the determined atmospheric light and the determined medium transmission map, wherein the recovered scene radiances form the de-hazed image.
An image processing device for processing an input image to generate a de-hazed image, the device comprising:
- an atmospheric light determiner configured to determine an atmospheric light based on the input image;
- a medium transmission map determiner configured to determine a medium transmission map by applying an edge-preserving smoothing filter to the input image;
- and
- a de-hazed image generator configured to recover scene radiances of the input image based on the determined atmospheric light and the determined medium transmission map, wherein the recovered scene radiances form the de-hazed image.
A non-transitory computer readable medium with a program stored thereon for processing an input image to generate a de-hazed image, the program when executed by a processor causes the processor to:
- determine an atmospheric light based on the input image;
- determine a medium transmission map by applying an edge-preserving smoothing filter to the input image;
- recover scene radiances of the input image based on the determined atmospheric light and the determined medium transmission map, wherein the recovered scene radiances form the de-hazed image.
Dependencies are inferred from the claim text.