Expected Value and Variance of Discrete Random Variables
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YouTubejbstatistics
Expected Value and Variance of Discrete Random Variables
An introduction to the concept of the expected value of a discrete random variable. I also look at the variance of a discrete random variable. The formulas are introduced, explained, and an example is worked through.
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Discrete cosine transform DCT Applications
Discrete cosine transform and hash functions toward implementing a (robust-fragile) watermarking scheme, Proceedings of SPIE | DeepDyve
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Discrete Cosine Transform in Video Compression - Explain Like I'm 5 - OTTVerse
Discrete Cosine Transform in Video Compression - Explain Like I'm 5 - OTTVerse
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1-D DISCRETE COSINE TRANSFORM DCT - SlideServe
1-D DISCRETE COSINE TRANSFORM DCT - SlideServe
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Write two MATLAB functions, called mydct.m and myidct.m, that implement the discretecosine transform (DCT) and its inverse for a vector of length N. You code should be short (4 linesor less per function, no loops), efficient (it should make use of the fft command), and match theoutput of MATLAB's dct and idct commands. You can verify the latter withX = randn(1000000,1);d1 = mydct(x);d2 = dct(x);norm(d1-d2)y = randn(1000000,1);w1 = myidct(y);w2 = idct(y);norm(w1-w2)The norms of the differences sh
Write two MATLAB functions, called mydct.m and myidct.m, that implement the discretecosine transform (DCT) and its inverse for a vector of length N. You code should be short (4 linesor less per function, no loops), efficient (it should make use of the fft command), and match theoutput of MATLAB's dct and idct commands. You can verify the latter withX = randn(1000000,1);d1 = mydct(x);d2 = dct(x);norm(d1-d2)y = randn(1000000,1);w1 = myidct(y);w2 = idct(y);norm(w1-w2)The norms of the differences sh
numerade.com
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Removable visible image watermarking algorithm in the discrete cosine transform domain, Journal of Electronic Imaging | DeepDyve
Removable visible image watermarking algorithm in the discrete cosine transform domain, Journal of Electronic Imaging | DeepDyve
deepdyve.com
Dec 16, 2014