By Ricard Prados, Rafael Garcia, László Neumann (auth.)
This paintings proposes innovations and options to take on the matter of creating photo-mosaics of very huge underwater optical surveys, providing contributions to the picture preprocessing, improving and mixing steps, and leading to a far better visible caliber of the ultimate photo-mosaic. The textual content opens with a entire evaluation of mosaicing and mixing concepts, earlier than presenting an strategy for giant scale underwater photo mosaicing and mixing. within the photograph preprocessing step, a intensity based illumination repayment functionality is used to resolve the non-uniform illumination visual appeal as a result of gentle attenuation. For snapshot enhancement, the picture distinction variability as a result of assorted acquisition altitudes is compensated utilizing an adaptive distinction enhancement in keeping with a picture caliber reference chosen via a complete version criterion. within the mixing step, a graph-cut technique working within the picture gradient area over the overlapping areas is advised. subsequent, an out-of-core mixing procedure for terribly huge scale photo-mosaics is gifted and confirmed on actual info. ultimately, the functionality of the method is evaluated and in comparison with different approaches.
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Additional resources for Image Blending Techniques and their Application in Underwater Mosaicing
Firstly, a data cost is computed to insure consistency and a high signal-to-noise ratio. Secondly, a seam cost is applied to favor smooth transitions. Nonetheless, such extreme exposure differences are not common in underwater photo-mosaicing. The gradient blending step is performed as in . More recently, Mills and Dudek  presented a combination of techniques to create good quality image mosaics despite the presence of moving objects in the scene. The technique uses heuristic measures to determine the optimal seam, in both intensity and gradient domains, combined with a multiresolution splining  algorithm to refine the results around the selected seam.
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