We present a new adaptation of Retinex to enhance the rendering of high dynamic range digital color images. The image is processed using an adaptive Gaussian filter. The shape of the filter basis is adapted to follow the high contrasted edges of the image. In this way, the artifacts introduced by a circularly symmetric filter at the border of high contrasted areas are reduced. This method provi...

In this paper, a compact high-pass filter (HPF) with a sharp rejection response based on the balanced composite right-left handed (CRLH) transmission line (TL) concept is proposed. A series LC resonator using an interdigital capacitor and meander lines is designed. Also, a meander spiral complementary split ring resonator (MSCSRR) is used to realize the parallel LC resonator. The high-pass filt...

Finite Impulse Response (FIR) Filter can be designed by the provision of specifications which are for a particular application requirement. An efficient FIR filter is designed using register reduction retiming technique. Also, an optimization environment is designed such that filter components of post retimed circuit such as adder and multiplier are upgraded depending on the Very Large Scale In...

This paper presents a fast digital zooming system for mobile consumer cameras using directionally adaptive image interpolation and restoration methods. The proposed interpolation algorithm performs edge refinement along the initially estimated edge orientation using directionally steerable filters. Either the directionally weighted linear or adaptive cubic-spline interpolation filter is then se...

Urban atmospheric visibility is closely associated with our daily life, such as navigation and human health. In the traditional, visibility is measured by professionally trained people. Meters and technologies were proposed to replace the traditional measurement. Digital image processing technology is one of schemes to measuring visibility. Since the good visibility contains more detail data, t...

In this paper, a modified auto zeroed integrator is used to design and simulate a low-voltage high-Q switched capacitor pseudo 2-path filter.  The filter is a sixth–order Chebyshev band-pass filter operating at sampling frequency of 1MHz and center frequency of 250 kHz with a quality factor of 50. The proposed filter has both low-voltage and high speed properties of the auto zeroed integrators ...

We study the combined and separate effects of three parts of finite multi-testtube cut and paste DNA computing. First, we reformulate the ideas of Csuhaj-Varjú, Kari, and Pǎun [1], Freund [3], and Priese, Rogojine and Margenstern [10] about multi-test-tube splicing DNA computing in terms of cutting and pasting as in Pixton’s work. Pixton shows [8, 9] that with finite cutting and pasting only re...

In this Project, we propose an algorithm for block artifact reduction for which Pseudo random noise masking is used. In H.264 Video Compression Standard, a Deblocking filter is implemented to reduce the quantization noise around the block boundaries. But there would still remain artifacts within blocks. These artifacts are known as Contour artifacts. These Contour artifacts further be reduced b...