Community Profile

photo

Fady Samann


Last seen: más de 3 años hace |  Con actividad desde 2020

Followers: 0   Following: 0

Estadísticas

  • Revival Level 1
  • First Answer

Ver insignias

Feeds

Ver por

Respondida
How do I create RAW image files in MATLAB?
To have the image in the correct postion, use matrix transpose in the fwrite. cmodel=(zeros(300,100,1)); fid=fopen('blackim...

más de 3 años hace | 0

Respondida
Decompress (color) JPG struct read via Phil Sallee's jpg toolbox to spatial domain
You can not move back and forth between DCT and RGB without loss, due to quantization, rounding, and truncation. The reconstract...

más de 3 años hace | 0

Pregunta


Do you convert the output of DCT Steganography from double into uint8 then to double again before extracting the hidden message?
In Matlab environment, do you export the output of the Inverse DCT from double to uint8 (to write an image file jpg, png, bmp et...

más de 3 años hace | 0 respuestas | 0

0

respuestas

Respondida
How to mirror matrix on the diagonal?
you can do the following: first, transpose the matrix A = table.'; Flip it horizontally A = flip (A,1); then, flip it vert...

más de 3 años hace | 0

Respondida
Stegnaography using DCT
First, you are not doing quantization to remove the samller DCT coefficients after that you can change LSB by masking it and and...

casi 4 años hace | 0