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Samaa Yasser


Last seen: mer än 3 år ago |  Active since 2021

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how to Convert the plaintext into a one-dimensional array
please i want to encrypt a plaintext file using chaos system ,so can anyone help me

mer än 3 år ago | 0 answers | 0

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Question


Bifurcation diagram and lyapunov diagram
please can any one help me to plot the Bifurcation diagram and lyapunov diagram for this code ???? please i need it very much ...

mer än 3 år ago | 0 answers | 0

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Question


how can i plot Bifurcation diagram and Lyapunov exponent for this code ?
please i want a help to plot Bifurcation diagram and Lyapunov exponent for the proposed map (3D chaotic equation) , can anyon...

mer än 3 år ago | 0 answers | 0

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answers

Question


I want to make some changes in this code please
clear;clc; img = imread('cameraman.tif'); y = imresize(img,[256 256]); imshow(y) tic timg = img; r = 3.62; x(1) = 0.7...

mer än 3 år ago | 0 answers | 0

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Question


this is apart from a code for image encryption using chaotic map, please help me to know what is the wrong with this code
x(1)=0.2350; y(1)=0.3500; z(1)=0.7350; a(1)=0.0125; b(1)=0.0157; l(1)=3.7700; image_height=256; for i=1:1:70000 ...

mer än 3 år ago | 0 answers | 0

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Question


Image encryption using chaotic map ,, what does this code mean ?
please this code is apart from a code which used to encrypt an image using logistic map key i just want to know what does this ...

mer än 3 år ago | 2 answers | 1

2

answers

Question


i want a randomly scramble of a divided image into 4 blocks
please if i have image 256X256 and i divided it into 4 blocks, how can i scramble the blocks randomly or change the orders of th...

mer än 3 år ago | 2 answers | 0

2

answers

Answered
problem in key generation ( chaotic 3D)
@omar A.alghafoor please can i contact with you i want to ask you about 3d chaotic generation ? i want a help please

mer än 3 år ago | 0

Question


8 - bit linear feedback shift register
how can i generate a pseudo-random sequence of numbers using 8 - bit linear feedback shift register , please if any one can hel...

mer än 3 år ago | 1 answer | 0

1

answer

Question


convert image matrix to row vector
i have an image size 256x256 and i want to Convert the image matrix to a row vector with length same size , how i can got it pl...

mer än 3 år ago | 2 answers | 0

2

answers

Question


generate my own key
i want to know howa can i create my own key using S box or how to generate my s box values ? i want the code please

mer än 3 år ago | 0 answers | 0

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Question


encrypt an image in matlab
if i want to encrypt an image using choatic maps and Substitution Box i want to know the steps of code to create the key inorder...

mer än 3 år ago | 0 answers | 0

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answers