This article presents CHBS, a novel context-based histogram bin stretching method that enhances the contrast by increasing range of gray levels and randomness among levels. It comprises image spatial contextual information discrete cosine transform (DCT). constitutes global enhancement with local details DCT. First, it uses similarities surrounding pixels to generate random numbers. Unlike othe...

In this paper we present a method of evolving the contrast characteristics of a satellite image by employing a real-coded genetic algorithm with subjective fitness. The contrast properties of an image are given by its contrast-stretching curve, and the task of the Genetic Algorithm is to evolve this curve in order to find the best shape according to some subjective fitness. The subjective fitne...

This study aimed to compare the effect of different static stretching durations followed by dynamic stretching on repeated sprint ability (RSA) and change of direction (COD). Twenty-five participants performed the RSA and COD tests in a randomized order. After a 5 min aerobic warm up, participants performed one of the three static stretching protocols of 30 s, 60 s or 90 s total duration (3 str...

Contrast Stretching is an important part in medical image processing applications. Contrast is the difference between two adjacent pixels. Fuzzy statistical values are analyzed and better results are produced in the spatial domain of the input image. The histogram mapping produces the resultant image with less impulsive noise and smooth nature. The probabilities of gray values are generated and...

The characteristic information of an organ lies in the texture of the image obtained by computed tomography imaging procedure. Therefore, enhancement of CT image aids a radiologist to better diagnose a disease which is a result of the enhanced/improved perceptibility and interpretability of the information present in the texture of the image. The present work proposes a method for texture enhan...

In this paper, we present a novel feature normalization method in the log-scaled spectral domain for improving the noise robustness of speech recognition front-ends. In the proposed scheme, a non-linear contrast stretching is added to the outputs of log mel-filterbanks (MFB) to imitate the adaptation of the auditory system under adverse conditions. This is followed by a two-dimensional filter t...