The Retinex algorithm originally presented by Land and McCann uses random paths to explore the image. Throughout the decades, many versions of the Retinex algorithm have been proposed, mainly differing in the way they explore the image, with e.g. random paths, random samples, convolution masks, and variational formulations. In this paper, we propose a step back towards the origin, replacing ran...

A tone mapping method for high dynamic range image is proposed to prevent the halo artifacts, which is easy to be produced in traditional method based on the Retinex theory in handling high dynamic range(HDR) image. Our method is based on the Retinex theory. The novelties of our method is first to employ a local edge-preserving filter for the estimation of the illumination, which can smooth out...

The correction of faded colors in old pictures, prints, and paintings is an interesting issue for color image processing. Several techniques have already been introduced to enhance faded color images, many of which approach the problem as color cast removal and use global illuminant estimation methods, such as the gray world or Von Kries assumptions. However, the use of simple global operators ...

Surveillance videos of coal mining faces have close relation to the safety of coal miners and mining efficiency. However, surveillance videos are always disturbed by some severe conditions such as atomization, low illumination, glare, and so on. Therefore, this paper proposed a hybrid algorithm (SSR-BF) based on the integration of single-scale Retinex (SSR) and bilateral filtering (BF) to enhan...

Finger vein recognition has been considered one of the most promising biometrics for personal authentication. However, the capacities and percentages of finger tissues (e.g., bone, muscle, ligament, water, fat, etc.) vary person by person. This usually causes poor quality of finger vein images, therefore degrading the performance of finger vein recognition systems (FVRSs). In this paper, the in...

A new approach to sensor fusion and enhancement is presented. The retinex image enhancement algorithm is used to jointly enhance and fuse data from long wave infrared, short wave infrared and visible wavelength sensors. This joint optimization results in fused data which contains more information than any of the individual data streams. This is especially true in turbid weather conditions, wher...