Partial Image Enhancement by Re-sampling of Pixels using Image Enhancement Techniques

With the advent of modern Technologies in the field of Photography, Photographs are playing an eminent role in our lives. But as the time rolls, Photographs gets antiquated and vile. So there is a need to enhance the Photographs such that they render the desired characteristics. Sometimes there may be a case where there is a need to render manipulations to a specific portion of the Image without disturbing the remaining part of the image. This paper operates on this issue and presents a reliable solution so that modifications are rendered to a specific part of an image. This paper focuses on choosing the portion of the image where the manipulations are to be furnished, applying the Image Enhancement Techniques to that portion of the image and Re-sampling the pixel values of the original image with the pixel values of that enhanced image at the exact coordinates where the portion of the image has been chosen. The resultant Image will be an image similar to the original image other than the modifications made to the specific part of the image. Rather than as a Digital Image Editor, this paper would be well exploited when you want to render modifications to the specific part of an image, while the remaining portion of the image is unaltere

Abrasive wear behavior of thermally sprayed diamond reinforced composite coating deposited with both oxy-acetylene and HVOF techniques

Diamond and diamond-based coatings have long been studied for their exceptional properties. Although a great deal of research has been carried out in this field, little is known about their tribological wear behavior. In the present work, diamond reinforced composite (DRC) coatings of varying diamond content was deposited on mild steel substrates using both oxy-acetylene (OA) and high velocity oxy fuel (HVOF) thermal spraying techniques. The high stress abrasive wear behavior of these coatings is studied by performing two body abrasion tests for varying experimental parameters. It is observed that the HVOF-sprayed coatings suffered abrasion at a relatively lowwear rate. The reasons for variations observed in the wear rate as a function of displacement during abrasion and grit size could be attributed to the deterioration of abrasive particles and the particle size effect respectively. While the disparity in thewear rates with respect to composition of the coatings was primarily controlled by the diamond content in the coating. The abrasive wear mechanism was found to be the same in both the coatings except that the coating deposited by HVOF spray technique, offered better abrasion resistance and therefore abraded at a slower rate. This is possibly due to lower porosity in the coating and higher bond strength between reinforced diamond particulates and the bronze matrix in HVOF-sprayed specimens