TONE CONSISTENCY FOR CAMERA IMAGING

Abstract: a method includes obtaining a single frame image from a multi-frame processing pipeline and obtaining a hardware image signal processing (hwisp) reference image. the method also includes obtaining luma components of the hwisp reference image and luma components of the single frame image. the method further includes generating a gain curve based on data distributions of the luma components of the hwisp reference image and the single frame image and applying respective gains to the luma components of the single frame image to obtain modified luma components. in addition, the method includes obtaining chroma components of the single frame image, applying a saturation gain to the chroma components of the single frame image based on the gain curve and the luma components of the single frame image to obtain modified chroma components, and combining the modified luma components and the modified chroma components to generate a final image.

Inventor(s): Soumendu Majee, Pavan C. Madhusudanarao, Zeeshan Nadir, John Seokjun Lee, Hamid Rahim Sheikh

CPC Classification: H04N23/86 (for controlling the colour saturation of colour signals, e.g. automatic chroma control circuits)

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