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Recent content by itsthetimetodisco

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    Topology of wireless ad hoc sensor networks

    i am working on topology mgt of wirelss ad hoc sensor networks wherein i can design an energy efficient algorithm for power saving for the dynamically placed nodes...can anyone help me in concept building...for the routing protocols and algorithms...
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    Neural Networks Question

    there is no need to study in detail about neurobiology to understand the engineering with neural network. most of the textbooks on ANN provide a good introduction on neurons to the extent that it is required. on the contrary, ANN is more mathematical than biological.
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    Watermarking algorithm for MATLAB

    Re: watermarking there is a standard conversion formula for RGB to YUV...u can use that to convert to gray and back to color. googling can give u the formula.
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    Neural Networks Question

    Yes, Fausett is a good book. You can also refer to Freeman, Skapura for introductory level. Simon Haykin can be refered for an advanced understanding. Let me know if you cant find these books on this forum. I can upload them.
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    Watermarking algorithm for MATLAB

    Re: watermarking any algorithm? u can implement either in spatial domain or in frequency domain. can give u good papers to refer for implementing a good watermarking technique.
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    Can I do video editing in Matlab?

    Re: video editing matlab video processing blockset supports only avi video files. and has limited capabilities. if you have raw video sequences, you may use yuv editing tools available on the net.
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    Question on Motion compensation?

    once you find the motion vector while doing motion estimation, then motion compensation is done as follows: subtract the best matching block in reference frame to the target block in current frame to obtain the residual. this will be the motion compensated residual and contains significantly...
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    image mean (help need urgently)

    please explain the meaning of variables in your equation..that will let other throw some insight in the problem.
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    upsampling of an image

    From 256x256, you can do pixel replication OR biliinear interpolation OR cubic interpolation to upsample your image. Here is a link I found which gives implementation code to upsample image using sinc function: **broken link removed** Hope this helps.
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    upsampling of an image

    you will need to do interpolation to get the pixel values for upsampling.
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    Solution manual for Computer Networks by Tannenbaum

    Re: hi Here is the solution manual for computer networks by Tannenbaum..4th ed.
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    JPEG soure in C language

    www.jpeg.org or www.ijg.org will give you the reference software for JPEG written in C language.
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    Need DSP interview questions...

    dsp interview question and answers there is a seperate thread in this dsp forum, exclusively for DSP interview questions. do check it out.
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    Calling all DSP masters

    math for dsp is not tough. its just normal calculations involved. from the outside view, it seems that lots of math expertise is required. but if we look inside, it appears that there are many math equations, but all very easy to solve. you need to know only preliminary complex math and calculus...
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    Why 16 rounds are used in single DES algorithm?

    Re: TRIPLE DES ALGORITHM why 16 rounds are used in single DES algorithm, and why we are using 3 keys in triple des. why not 2,4,5 16 rounds are used in DES as a tradeoff between performance and speed of the algorithm. Triple DES uses 3 keys but a better version of triple des is to use only 2...

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