Monica Borda

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In this paper we present a novel diffusion filter, designed for strongly oriented patterns. Unlike most previous diffusion methods, our filter employs global orientation information, the diffusion process being steered according to this information. Using a scalar diffusivity, as used in the classical Perona Malik filter, we are able to eliminate the(More)
We present a robust watermarking method for still images using a discrete wavelet transform. The proposed scheme makes use of the image properties in order to make the watermark less perceptible to the HVS. The watermark is embedded in the coefficients of all subbands (except the LL subband), using a subband-adaptive thresholding scheme. We compare the(More)
The mobility has become a valuable necessity for information technology users. Along with this property, for a smart phone user, the following aspects are also important: the storage space, the energy consumption, the applications complexity and the efficiency. Comparing to standalone mobile applications, mobile cloud applications make use of resource(More)
Automation is an open subject in DNA microarray image processing, aiming reliable gene expression estimation. The paper presents a novel shock filter based approach for automatic microarray grid alignment. The proposed method brings up significantly reduced computational complexity compared to state of the art approaches, while similar results in terms of(More)