Sharpening filters are used to highlight fine image details, including object edges. However, sharpening very specific different types of images as they may create undesired edge effects, over-highlight or emphasize noise. Laplacian, Laplacian Gaussian, high-boost, unsharp masking filters, and their extended algorithms among most widely spatial filters. This paper introduces a method that integ...

In many computer vision applications, segmenting and extraction of moving objects in video sequences is an essential task. Background subtraction, by which each input image is subtracted from the reference image, has often been used for this purpose. In this paper, we offer a novel background-subtraction technique for real-time dynamic background generation using color images that are taken fro...

Fig. 1.-A, Noncontrast CT scan shows vague area of increased attenuation adjacent to head of right caudate nucleus (arrow). B, Coronal T1-weighted (700/ 20/ 4) MR image shows area of decreased signal in white matter adjacent to, and extending into, head of right caudate nucleus (arrow). C, Axial T1-weighted (600/ 20) postcontrast MR image shows no significant contrast enhancement (arrow). D, Ax...