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Question
Can anybody explain how to implement chi attack on 8-bit colour image in matlab? Which are the simple visual attacks on encrypted image those can be easily implemented in matlab?
Implementation on chi attack and way to get original image back
8 years ago | 0 answers | 0
0
answersQuestion
Different attacks on video
How to apply following effects to videos in matlab? 1-Frame shifting Effect 2-Frame deletion Effect 3-Frame Exchange Effect
8 years ago | 0 answers | 0
0
answersQuestion
i have three image parts and i want to add them and get three images back,but i getting an error due to sizes of matrix is different
clc; clear all; I=imread('thumb.jpg'); figure, imshow(I); [r c]=size(I); imshow(I); for i=1:1:r for ...
8 years ago | 1 answer | 0
1
answerQuestion
I have defined an array with command zeros,still i am getting a more size.Can anybody explain this?
I have defined matrix with zeros command:zeros(1,6832).But I am getting size of (1,7032).Can anybody explain why this is happeni...
8 years ago | 1 answer | 0
1
answerQuestion
Change in the colour of the original image obtained after embedding data inside
I have embedded data(binary 0,1)inside red plane of the image by using embedding algorithm'Multilevel Histogram Modification and...
8 years ago | 0 answers | 0
0
answersQuestion
Difference between calculating psnr in uint8 and double.
I have implemented a data hiding algorithm(multilevel histogram modification and sequential recovery).I am getting psnr about 30...
9 years ago | 2 answers | 0
2
answersQuestion
I am using multilevel histogram modification algorithm for embedding binary data into an image.Even if no data is added i am getting low psnr about 10 and mse close to 1.How can i improve psnr?
Algorithm implemented on 3x3 matrix- clc; clear all; fprintf('The image matrix A-'); fprintf('\n'); A=[55 53 52...
9 years ago | 0 answers | 0
0
answersQuestion
By using rgb2bind function 512x512x3 image is converted into 512x512 for algorithm implementation.If i have to convert 512x512 image into 512x512x3 image what needs to be done?
A=imread('airplane.bmp'); [Z,map]=rgb2ind(A,256); A is 512x512x3 and Z is 512x512. I want to perform reverse operatio...
9 years ago | 1 answer | 0
