MUMBAI, India, April 17 -- Intellectual Property India has published a patent application (202641043512 A) filed by Sree Chaitanya College Of Engineering, Karimnagar, Telangana, on April 6, for 'underwater image enhancement via minimal color loss and locally adaptive contrast enhancement.'
Inventor(s) include Dr. Cheruku Sandesh Kumar; D Venu; Avunoori Rajitha; and Enagandula Mounika.
The application for the patent was published on April 17, under issue no. 16/2026.
According to the abstract released by the Intellectual Property India: "Underwater images typically suffer from color deviations and low visibility due to the wavelength-dependent light absorption and scattering. To deal with these degradation issues, we propose an efficient and robust underwater image enhancement method, called MLLE. Specifically, we first locally adjust the color and details of an input image according to a minimum color loss principle and a maximum attenuation map-guided fusion strategy. Afterward, we employ the integral and squared integral maps to compute the mean and variance of local image blocks, which are used to adaptively adjust the contrast of the input image. Meanwhile, a color balance strategy is introduced to balance the color differences between channel a and channel b in the CIELAB color space. Our enhanced results are characterized by vivid color, improved contrast, and enhanced details. Extensive experiments on three underwater image enhancement datasets demonstrate that our method outperforms the state-of-the-art methods. Our method is also ap."
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