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An automatic algorithm of degraded color document image enhancement is proposed based on our previous work on Natural Rendering of Color Image using Retinex (NRCIR) with respects to document image characteristics. In the proposed work, an adaptive workflow is designed to enhance both luminance and chrominance contrast of document image while maintaining degradations within tolerance and hue-shift...
A new method for Natural Rendering of Color Image based on Retinex (NRCIR) is proposed. Here, the word ??natural?? means that the ambience of image (warm or cold color impression) should not be changed after enhancement. Furthermore, the treatment should not introduce any additional light sources and should not produce halo effect or amplify blocking effect. Inspired by Retinex theory and histogram...
Procedural guidance using high-resolution, three-dimensional (3D) myocardial scar mapping may offer assistance in directing catheter ablation therapy aimed at eliminating re-entrant arrhythmic pathways. For the purpose of pre-procedural planning and intra-procedural guidance, determining the spatial relationship between myocardial scar, cardiac chambers and vascular structures is a crucial step towards...
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