The oil in hydropower station catchment wells is a source of water pollution which can cause the downstream river to become polluted. Timely detection effectively prevent expansion leakage and has important significance for protecting sources. However, poor environment insufficient light on surface make difficult, real-time performance poor. To address these problems, this paper proposes well m...

objective: although the etiology of schizophrenia is unknown, it has a significant genetic component. ‎a number of studies have indicated that neuregulin-1 (nrg1) gene may play a role in the ‎pathogenesis of schizophrenia. in this study, we examined whether the rs2439272 of nrg1 ‎is associated with schizophrenia and its negative symptoms in an iranian population.‎ method: rs2439272 was genotype...

It can be a very challenging task when using level set method segmenting natural images with high intensity inhomogeneity and complex background scenes. A new synthesis for robust image segmentation based on the combination of Retinex-corrected saliency region information edge is proposed in this work. First, Retinex theory introduced to correct extraction. Second, embedded into due its advanta...

We propose a new illumination normalization for face recognition which robust in relation to the illumination variations on mobile devices. This research is novel in the following five ways when compared to previous works: (i) a new fuzzy‐based Retinex method is proposed for illumination normalization; (ii) the performance of face recognition is enhanced by deter...

Self-regularized low-light image enhancement does not require any normal-light in training, thereby freeing from the chains of paired or unpaired training data that are time-consuming to obtain. However, existing methods suffer color deviation and fail generalize various lighting conditions. This paper presents a novel self-regularized method based on Retinex, which, inspired by HSV, preserves ...

Retinex theory addresses the problem of separating the illumination from the reflectance in a given image, and thereby compensating for non-uniform lighting. In a previous paper [10], a variational model for the Retinex problem was introduced. This model was shown to unify previous methods, leading to a new illumination estimation algorithm. The main drawback with the above approach is its nume...

Color equalization algorithms exhibit a variety of behaviors described in two differing types of models: Gray World and White Patch. These two models are considered alternatives to each other in methods of color correction. They are the basis for two human visual adaptation mechanisms: Lightness Constancy and Color Constancy. The Gray World approach is typical of the Lightness Constancy adaptat...

We present a data-level comparative visualization system that utilizes two key pieces of technology: (1) cross-mesh field evaluation – algorithms to evaluate a field from one mesh onto another – and (2) a highly flexible system for creating new derived quantities. In contrast to previous comparative visualization efforts, which focused on “A−B" comparisons, our system is able to compare many re...

A new method for enhancing the contrast of magnetic resonance images (MRI) by retinex algorithm is proposed. It can correct the blurrings in deep anatomical structures and inhomogeneity of MRI. Multiscale retinex (MSR) employed SSR with different weightings to correct inhomogeneities and enhance the contrast of MR images. The method was assessed by applying it to phantom and animal images acqui...