This paper presents edge detection using the Sobel compass edge detector where four processing elements are arranged in parallel to get the edge detected values in different directions of compass to get a accurate edge detected image. The edge detection is done in four stages which include buffer memory, four processing elements, maximum gradient unit and edge map which is designed in verilog a...

Nowadays, digital camera based remote controllers are widely used in people’s daily lives. It is known that the edge detection process plays an essential role in remote controlled applications. In this paper, a system verification platform of hardware optimization based on the edge detection is proposed. The Field-Programmable Gate Array (FPGA) validation is an important step in the Integrated ...

Image edge detection is a process of locating the edge of an image which is important in finding the approximate absolute gradient magnitude at each point I of an input grayscale image. The problem of getting an appropriate absolute gradient magnitude for edges lies in the method used. The Sobel operator performs a 2-D spatial gradient measurement on images. Transferring a 2-D pixel array into ...

Edge detection is a classic problem in the field of image processing, which lays foundations for other tasks such as image segmentation. Conventionally, this operation is performed using gradient operators such as the Roberts or Sobel operator, which can discover local changes in intensity levels. These operators, however, perform poorly on low contrast images. In this paper, we propose an edge...

In this paper, we propose an efficient method for license plate localization in the images with various situations and complex background. At the first, in order to reduce problems such as low quality and low contrast in the vehicle images, image contrast is enhanced by the two different methods and the best for following is selected. At the second part, vertical edges of the enhanced image are...

This is an impressive book, a truly extraordinary achievement. I can think of no other treatment of theism, whether by theist or non-theist, comparable to it. Its combination of wide-ranging scope and penetrating analysis makes it a unique contribution to philosophical theology. The product of a lifetime of study, Logic and Theism is testimony to Howard Sobel’s remarkable mastery of his subject...

In this paper we propose a method for automating the process of detecting regions of motion in a video sequence in real time. The main idea of this work is to detect motion based on both structure and color. The detection using structure is carried out with the aid of information gathered from the Census Transform computed on gradient images based on Sobel operators. The Census Transform charac...

A local filter which uses the local-intensity subrange of tinuities in mean intensity4, range filters will detect pixel intensity values within a window is described. edges. This paper investigates the effectiveness of The range filter is an extension of the rank filter and has these filters for this task. been found useful for detecting edges. The deterThe local subrange is calculated by order...

Vision analysis with low or no illumination is gaining more and more attention recently, especially in the fields of security surveillance and medical diagnosis. In this paper, a real time sobel square edge detector is developed as a vision enhancer in order to render clear shapes of object in targeting scenes, allowing further analysis such as object or human detection, object or human trackin...

A new fuzzy edge detector based on uninorms is proposed and deeply studied. The behaviour of different classes of uninorms is discussed. The obtained results suggest that the best uninorm in order to improve the edge detection process is the uninorm Umin, with underlying Lukasiewicz operators. This algorithm gets statistically substantial better results than the others obtained by well known ed...