The main aim of image enhancement is to improve the interpretability or perception of information in images for human viewers, or to provide better input for other automated image processing techniques. Many techniques for enhancement of grey scale images such as histogram equalization, contrast stretching etc. can be found in the literature. But those methods are not directly applicable to the...

The aim of image enhancement is to improve the perception of information in images for human viewers, or to provide better input for other automated image processing images. Image Enhancement (IE) transforms images to provide better representation of subtle details. Contrast stretching is an image enhancement technique commonly used for medical images for improving the quality of an image by re...

This paper describes a method of enhancement of grayscale and color image in the frequency domain by the pair of two elliptic discrete Fourier transforms (EDFT). Unlike the traditional discrete Fourier transform (DFT), the EDFT is parameterized and the parameter defines ellipses (not circles) around which the input data are rotated. Methods of the traditional DFT are widely used in image enhanc...

Image enhancement is aimed to improve image quality by maximizing the information content in the input image. In this article a PSO based hue preserving color image enhancement technique is proposed. The process is as follows. Image enhancement is considered as an optimization problem and particle swarm optimization (PSO) is used to solve it. The quality of the intensity image is improved by a ...

-------------------------------------------------------ABSTRACT ------------------------------------------------------------Image Enhancement aims at improving the visual quality of input image for a particular area. The criterion used by enhancement algorithms to enhance the image is; using histogram details of that image. This paper defines the various applications of histograms through which...

In the last two decades, Audiovisual Translation (AVT) studies have become of interest for Second Language Acquisition (SLA) researchers, particularly regarding use subtitles in language learning activities. This paper will present an experiment aimed at investigating role subtitled 'input enhancement' SLA. The study involved a group Italian native students English as Foreign (EFL) from Milan U...

Nowadays devices are able to capture and process images from complex surveillance monitoring systems or from simple mobile phones. In certain applications, the time necessary to process the image is not as important as the quality of the processed images (e.g., medical imaging), but in other cases the quality can be sacrificed in favour of time. This thesis focuses on the latter case, and propo...

A class-AB rail-to-rail CMOS buffer amplifier is proposed and fabricated. The main circuit structure includes a bias circuit, a complementary folded-cascode differential input stage, a common-mode rejection ratio (CMRR) enhancement stage, and a class-AB output stage. With the complementary folded-cascode input stage, high input common-mode range (ICMR) and rail-to-rail output are realized. By u...

Image Processing is a structure of Signal Processing for which the input is the image and the output is also an image or parameter of the image. Image Resolution has been frequently referred as an important aspect of an image. In Image Resolution Enhancement, images are being processed in order to obtain more enhanced resolution. To generate highly resoluted image for a low resoluted input imag...