Andi Tarigan
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Electrical Engineering
Professional Interests: Image Processing, Watermarking
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Question
How to generate PN Sequence?
How to generate two uncorrelated pseudorandom sequences by a key?
mer än 10 år ago | 1 answer | 0
1
answerQuestion
How to replace element matrix with the other matrix?
What if I have a matrix A (4x4) with a size of (1x64 cell), and the matrix B (2x2) with size of (1x64 cell)? And I want to repla...
mer än 10 år ago | 6 answers | 0
6
answersQuestion
How to replace middle value of matrix 4x4 with the other matrix 2x2?
I have matrix A with size 4x4, and I want to replace the middle value of matrix A(size 2x2) with matrix B, the matrix B have siz...
mer än 10 år ago | 1 answer | 0
1
answerQuestion
Matrix operation with equation
Hello, I have a equation: X' = X + (0.7 * PN) Where: X = Matrix with size 2x2 as much as 64x4 (256) PN = Mat...
mer än 10 år ago | 1 answer | 0
1
answerQuestion
How to embed matrix in watermarking?
Hello, How to embed the two pseudorandom sequences (Matrix with size 1024, 1), with factor gain alfa in the DCT transformed 4...
mer än 10 år ago | 0 answers | 0
0
answersQuestion
Replace matrix with the other random matrix.
Hello, Here I have matrix vector 0 and 1 with size (1024, 1), and I have the other matrix from random matrix with value betwe...
mer än 10 år ago | 2 answers | 0