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Nonlinear multiresolution image blending

Grundland M., Vohra R., Williams G. P., Dodgson N. A.

Machine Graphics and Vision

2006

Vol. 15, No. 3/4

381-390

We study contrast enhancement for multiresolution image blending. In image compositing, image stitching, and image fusion, a blending operator combines coefficients of a pixel array, an image pyramid, a wavelet decomposition, or a gradient domain representation. Linear interpolation reduces variation and thereby causes contrast loss, while coefficient selection increases variation and thereby causes color distortion. Offering a continuous range of possibilities between these standard alternatives, the signed weighted power mean enables the user to calibrate the contrast of composite images.