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This paper proposes a novel method of solving the Poisson equation used in image processing techniques that are based on computations in the gradient domain. The Poisson equation is used to perform an inverse gradient transform; it back-solves to find an image that is closest to having a particular gradient. The traditional methods for back-solving require access to the entire gradient-domain image;...
This paper describes a high throughput encoder for high dynamic range (HDR) images that is compatible with the JPEG2000 engine. A nine-level Reinhard-like tone mapping operator is used to calculate a local illumination estimate around each pixel in the image. Both, the local illumination estimate and the tone mapped pixel streams are sent to the JPEG2000 engine for compression. When tested with HDR...
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