juveria fatima

Active since 2018

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how to calculate the key space for 4d rossler system, i wanted to use x,y,z,w as key in image encryption technique, for that i have to calculate the key space.
x(1)=-10;y(1)=-6;z(1)=0;w(1)=10; a= 0.2500;b= 3; c= 0.5000;d= 0.0500;dt= 0.0025; %%---------4d rossler hyperchaotic system----...

6 years ago | 0 answers | 0

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how to give param value
how to give a,b,c,d,dt value to function function [X1,Y1,Z1,W1] = Rossler4D(x,y,z,w,param) a = param.a; b = param.b; c = p...

6 years ago | 2 answers | 0

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how do i change the histogram color
for a rgb image i want to get red channel histogram in red color and 2nd channel histogram in green color and 3rd channel histog...

6 years ago | 1 answer | 0

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how to converter negative integers to postive and then get back to negative
rgb_image =(imread('baboon.tiff','tiff')); LS = liftwave('cdf2.2','Int2Int'); [CA,CH,CV,CD] = lwt2(double(rgb_image),LS)...

6 years ago | 1 answer | 0

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how to make the wavelet to positive and get it's inverse
here am taking baboon image rgb_image_1=imread('baboon.tiff'); am applying lift wave LS = liftwave('cdf2.2','Int2Int...

6 years ago | 0 answers | 0

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Question

How to display c matrix shown below?
>> I = imread('baboon.tiff'); %input image of size 512*512*3 E1 = encode(I);% this function will return 262144*8 ...

6 years ago | 1 answer | 0

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Question

the problem with loop
|test1| images and reference images |imagedb| exceeds 6 mb size so i couldn't attach the image for test you can take any images ...

6 years ago | 1 answer | 0

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i have to do bitxor on image pixel wise
i have lena image as rgb_image=imread('lena.png'); size of rgb_image is 512*512*3 rgb_image_1(1,1) ...

6 years ago | 1 answer | 0

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Question

how to add the first row all the odd columns by step of 2 odd columns
I want to add 1 and 3 the 2 and 1. Then moving to second row I want to add 1 and 1 then 4 and 5. Similarly I want to, in genera...

6 years ago | 1 answer | 0

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Question

how can xor first pixel with second and second with third and so on (for binary image)
image=imread('lena.jpg'); bin_image=dec2bin(image); i have attached the pdf of my question kindly review

6 years ago | 1 answer | 0

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hi i want to calculate nth power for each value of s from 1 to 50 and store the result for each value of s in za varaible
f=imread('lena1.jpg'); x=rgb2gray(f); for s=1:50 za=x.^(s); end

6 years ago | 1 answer | 0

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Question

hi i have a problem in running the loop for my code given below
the problem is it is taking s value only as p i.e 512 i wanted to run for the range s=1 to 512, so as to get q as 512 values ea...

6 years ago | 0 answers | 0

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hi can any one help me in sobolev space implementation in matlab
Sobolev spaces with p = 2 i.e H k = W k,2.

6 years ago | 0 answers | 0

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can anyone help in getting idwt2 image
i have attached input image after applying my algorithm with dwt2 i have got the a1,a2,a3 now ,on which i have to apply idwt2 us...

6 years ago | 0 answers | 0

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how do i convert this string back to matrix of any size
i am having an rgb image matrix of 532*532 double after applying runlength encodng on rgb image .it has been converted to string...

6 years ago | 0 answers | 0

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how can i use my own image to hide the data ..instead of using image_toolbox
<https://in.mathworks.com/matlabcentral/fileexchange/54155-encoding-text-into-image-gray-levels?focused=5790124&tab=function>

6 years ago | 0 answers | 0

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when am converting matlab figure in to jpg its size is increased a lot can anyone help to resolve the problem ,why is the size incresing
here is the code am using to convert matlab figure in to jpg format and results are also attached please any one help figs...

6 years ago | 1 answer | 0

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Question

ia m trying to zigzagscan lena image am not getting its inverse
i am using this code https://in.mathworks.com/matlabcentral/fileexchange/15317-zigzag-scan am not getting the exact invers...

6 years ago | 0 answers | 0

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i am working on Image Compression Using Run Length Encoding
am getting error in scanning in zigzag the error is as follows Undefined function or variable 'toZigzag'. Error i...

6 years ago | 1 answer | 1

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Question

i am unable to zigzag scan image
i am using this code kindly help me to solve <https://in.mathworks.com/matlabcentral/fileexchange/56332-zigzag-scan-any-n-n-...

6 years ago | 1 answer | 0

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Index exceeds matrix dimensions. Error in rough (line 62) x1(r(1)+1,r(2)+1)=xxx(i,j);
am unable to shuffle back due to index problem please anyone help me out clear all clc g=imread('cameraman.tif'); ...

6 years ago | 0 answers | 0

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How to Convert the Two dimensional Image to a one dimensional Array using ZigZag Scanning
ImageArray=toZigzag(QuantizedImage); am getting zigzag not defined

6 years ago | 2 answers | 0

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how to get the compressed image from huffman
i am using huffman dictioanry to encode n decode how do i get the compressed image entropy, average length this is my code...

6 years ago | 0 answers | 0

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Question

how to get the compressed image from huffman
i am using huffman dictioanry to encode n decode how do i get the compressed image entropy, average length this is my code...

6 years ago | 0 answers | 0

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answers

Question

how to get the compressed image from huffman
i am using huffman dictioanry to encode n decode how do i get the compressed image entropy, average length this is my code...

6 years ago | 0 answers | 0

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Question

i have applied huffman coding and decoding from matlab/simulink for digital communication by won y yang
i have applied huffman on images everything is working fine am getting the coded_sequence ,decoded_sequence,decoded image but th...

6 years ago | 1 answer | 0

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Question

how to reduce image to fit the screen size
Warning: Image is too big to fit on screen; displaying at 2% > In images.internal.initSize am getting this error please he...

6 years ago | 0 answers | 0

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Question

how to get odd rows and columns,even rows and columns
A1 is the lena image A is to the first row similarly how to get the even rows ,even columns,odd rows,odd columns A...

6 years ago | 1 answer | 0

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Question

i have a lena image of 512*512*3 .i want to display only the first row of entire image.and then find the probability of each pixel values in first row. i.e how many time a particular pixel value repeats can any one help
.

6 years ago | 1 answer | 0

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Question

i have written a code to get the probability of pixels value as '1' for implementing huffman compression
A = imread('lena1.jpg'); A = reshape(uint8(A), [1 512*512*3]); s = size(A); [rows columns numberOfColorBands] = s...

6 years ago | 0 answers | 0

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