Sarita Singh Bhadoria

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Digital watermarking is a technique which allows an individual to add hidden copyright notices or other verification messages to digital audio, video, or image signals and documents. Watermarking can be done by using least significant bit (LSB), singular value decomposition (SVD), Discrete Fourier Transform (DFT), Discrete cosine transform (DCT) and(More)
Intensity transformation function based on information extracted from image intensity histogram play a basic role in image processing, in areas such as enhancement. Histogram equalization (HE) is a conventional method for image contract enhancement. Histogram equalization improved the contrast of image by changing the intensity level of the pixel based on(More)
Mammograms can depict most of the significant changes of breast disease. The primary radiographic signs of cancer are masses (its density, site, shape, borders), spicular lesions and calcification content.These features may be extracted using various detection system .The common are Neural network, wavelet, fuzzy logic, evolutionary approach and finally(More)
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