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公开(公告)号：WO2019164704A1
公开(公告)日：2019-08-29
申请号：PCT/US2019/017643
申请日：2019-02-12
Applicant: GOPRO, INC.
Inventor： GUÉRIN, Guillaume Matthieu , KRISSIAN, Karl , LEBRUN, Marc , MOSCHETTI, Giuseppe
Abstract: Image analysis and processing may include using an image processor to receive image data corresponding to an input image, determine an initial gain value for the image data based on at least one of a two-dimensional gain map or a parameterized radial gain model, determine whether the initial gain value is below a threshold, determine a maximum RGB triplet value for the image data where the initial gain value is below the threshold, determine a pixel intensity as output of a function for saturation management, determine a final gain value for the image data based on the maximum RGB triplet value and the pixel intensity, apply the final gain value against the image data to produce processed image data, and output the processed image data for further processing using the image processor.
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公开(公告)号：WO2019079403A1
公开(公告)日：2019-04-25
申请号：PCT/US2018/056226
申请日：2018-10-17
Applicant: GOPRO, INC.
Inventor： GUERÍN, Guillaume Matthieu , AUGER, Michel , KRISSIAN, Karl
CPC classification number: H04N5/235 , G02B13/06 , G03B7/091 , G03B37/04 , G06T5/008 , G06T2200/32 , G06T2207/10024 , H04N5/2258 , H04N5/23238
Abstract: Image signal processing includes generating an exposure compensated image based on a gain value applied to an exposure level of a first image and a gain value applied to an exposure level of a second image. The gain value may be progressively increased from an approximate center of the first image to an edge of the first image to a common exposure level. The gain value may be progressively decreased from an approximate center of the second image to an edge of the second image to the common exposure level. Gain values may be scaled on each color channel for a pixel based on a saturation level of the pixel.
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