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Andi Tarigan


Active since 2014

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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?

bijna 11 jaar ago | 1 answer | 0

1

answer

Question


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...

ongeveer 11 jaar ago | 6 answers | 0

6

answers

Question


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...

ongeveer 11 jaar ago | 1 answer | 0

1

answer

Question


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...

ongeveer 11 jaar ago | 1 answer | 0

1

answer

Question


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...

ongeveer 11 jaar ago | 0 answers | 0

0

answers

Question


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...

ongeveer 11 jaar ago | 2 answers | 0

2

answers