In this paper we present a novel mathematical model for color image processing. The proposed algebraic structure is based on a special mapping of color vectors into the space of bi-quaternions (quaternions with complex coefficients) inspired by the theory of relativity. By this transformation, the space of color vectors remains close under scalar multiplication and addition and limited by an up...

counting the population of insect pests is a key task for planning a successful integrated pest management program. most image processing and machine vision techniques in the literature are very site-specific and cannot be easily re-usable because their performances are highly related to their ground truth data. in this article a new unsupervised image processing method is proposed which is gen...

In today’s technological era human beings are mostly interested in quality and purity of photographs or images. With the digital camera’s invention, capturing images has become extremely easy and widespread, while image data has become more robust and easy to manipulate. Among the many possible image-processing options, users have become increasingly interested in changing an image’s tone or mo...

In recent years a massive research and development effort has been witnessed in color imaging technologies in both the industry and the ordinary life. Color is commonly used in television, computer displays, cinema motion pictures, print, and photographs. In all these application areas the perception of color is paramount for the correct understanding and dissemination of the visual information...

In digital image processing, image enhancement is employed to give a better look to an image. Color is one of the best ways to visually enhance an image. Pseudo-color refers to coloring an image by mapping gray scale values to a three dimensional color space. In this paper we used a pseudo-color technique in frequency domain to enhance ultrasound images. We used three different types of transfo...