Sarabjeet Singh Bedi

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Image Enhancement is one of the most important and difficult techniques in image research. The aim of image enhancement is to improve the visual appearance of an image, or to provide a " better transform representation for future automated image processing. Many images like medical images, satellite images, aerial images and even real life photographs(More)
The digital multimedia content authentication and copyright protection has become an important issue in the recent years. Digital Watermarking Technology has been proposed for the implementation of Digital Right Management. Digital watermarking is the process of embedding information into digital multimedia content such that the information can later be(More)
The human visual system exhibits reduced sensitivity to distortions in the regions of an image where the rate of change is significant. This entails that a watermark with significant value can be robust and if it resides near around edges and textured areas of an image, it would be imperceptible as well. The present work exploits this characteristic of the(More)
Image fusion is used to enhance the quality of images by combining two images of same scene obtained from different techniques. In medical diagnosis by combining the images obtained by Computed Tomography (CT) scan and Magnetic Resonance Imaging (MRI) we get more information and additional data from fused image. This paper presents a hybrid technique using(More)
This paper presents a novel technique to protect the copyright information by embedding a bit map image as watermark into the frames of videos in such a way in could be extract to proof the ownership from the video contents. The proposed scheme produce a robust video watermarking scheme into two bands therefore named as multiband with strength ?1 and ?2(More)
— The Human Visual System is found to be less sensitive to the highly textured area of the image. Moreover, in all colours the blue is least sensitive to the HVS (Human Visual System). While working on colored images when using the mathematical and biological models of HVS, the preferred colour model must be HSV (Hue, Saturation and Value) colour model(More)
Video watermarking plays a key role in copyright protection domain of today's world. In the following paper, a blind watermarking algorithm is being proposed in which the watermark information is being embedded by little alteration of some of the value of DCT coefficients of luminance part of video during encoding it in MPEG-2 style. It is obvious that for(More)
Contrast Enhancement involves enhancement of images such that the visibility of images increases. Contrast enhancement of images is used for a variety of applications such as in medical field, image enhances software's. Although there are various techniques implemented for the enhancement of images such as using non-dynamic stochastic resonance [1].(More)
Image enhancement is the indispensable features in image processing to increase the contrast of the remote sensing data and to provide better transform representation of the remote image data. This paper presents a new method to improve the contrast and intensity of the image data. The method employs that the discrete wavelet transform with Kernel adaptive(More)