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Andi Tarigan


Attivo dal 2014

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Electrical Engineering
Professional Interests: Image Processing, Watermarking

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How to generate PN Sequence?
How to generate two uncorrelated pseudorandom sequences by a key?

quasi 11 anni fa | 1 risposta | 0

1

risposta

Domanda


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...

quasi 11 anni fa | 6 risposte | 0

6

risposte

Domanda


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...

quasi 11 anni fa | 1 risposta | 0

1

risposta

Domanda


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...

quasi 11 anni fa | 1 risposta | 0

1

risposta

Domanda


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...

quasi 11 anni fa | 0 risposte | 0

0

risposte

Domanda


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...

quasi 11 anni fa | 2 risposte | 0

2

risposte