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Farjana Yeasmin


Khulna University

Actif depuis 2014

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I am a learner of matlab.

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Question


hamming code for error checking of input and output text
I want to check error for steganography between the input text file and output text file , how can I do that ? help me with code...

presque 10 ans il y a | 1 réponse | 0

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Question


convertion rgb image blue channel image
how i get a blue channel image from a rgb image ?

presque 10 ans il y a | 2 réponses | 0

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réponses

Question


lena image and baboon image
why do we use lena and baboon image for image processing ? why is the smooth image ? and baboon is the worst image ?

presque 10 ans il y a | 1 réponse | 0

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Question


problem with image index
[bitValue,checkValue]=retrieveMessage(convertGray(i,j,3),key); what is trying to shown by [bitValue,checkValue] ?

presque 10 ans il y a | 1 réponse | 0

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Question


problem with understanding the convertion of char ?
x(1,j)=char(1-(unicode2native(message_bit)-48)+48);

presque 10 ans il y a | 1 réponse | 0

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Question


how to define string character ?
newValue=' '; what does it mean?

presque 10 ans il y a | 1 réponse | 0

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Question


size of image
readImage1=imread(image_file1); [x1,y1,z1] = size(readImage1); what does mean by the second line of the code ?

presque 10 ans il y a | 2 réponses | 0

2

réponses

Question


what does a histogram represent of a image ?
What is the x axis and y axis in a histogram of a image. how does it work ?

presque 10 ans il y a | 1 réponse | 0

1

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Question


problem with working the browsing image in gui
I am trying to browse a image using a push button , and the address of the file saved in edit text box, but I can not work the i...

presque 10 ans il y a | 1 réponse | 0

1

réponse

Question


.png Images correlation
I am asked to do the correlation with two png images, but i can not do it using corr2() function, any can help me ,, with the co...

presque 10 ans il y a | 1 réponse | 0

1

réponse

Question


Problem with Image Steganography
I am working on image Steganography , but the PSNR value of the stego image is low, how can I improve the PSNR of the Image . Pl...

presque 10 ans il y a | 1 réponse | 0

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Question


Input into a edit text box from a file ..
I want to load the text in a file into a edit text box , by pressing a push button how can I do that ... plz help

presque 10 ans il y a | 1 réponse | 0

1

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Question


problem with call back function in gui
here,in push button22 I load the text from a file into the edit box named "mesage_length" .now i want to use the text in the re...

presque 10 ans il y a | 1 réponse | 0

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Question


png to tif convertion
how can i convert png image into tif image

presque 10 ans il y a | 2 réponses | 0

2

réponses

Question


problem with correlation of two images
my code is : {function [ cofficient ] = Untitled( image ) I = imread('D:\\Thesis Code\\Source Code\\StegoImage.png'); ...

presque 10 ans il y a | 1 réponse | 0

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Question


I have a problem with some code of GUI
from the 1st function embed_ok i want to use the m_length in the 2nd function in the position of retrieve(image_string,_) How ca...

presque 10 ans il y a | 1 réponse | 0

1

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Question


Correlation between two images ..
I am doing a project on steganography . I have been asked to calculate the correlation between stego image and real image . plz...

presque 10 ans il y a | 2 réponses | 0

2

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Question


i tryng to run a .m file but always shows a error undefined variable.... plz help
errror : Undefined variable "cropping" or class "cropping.m". The cropping.m file is : %===================================...

presque 10 ans il y a | 1 réponse | 0

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Question


how can i run a .m file pressing a push button ?
my code of the funtion is : function cropping_fun(image, x_TopLeft, y_TopLeft, x_BottomRight, y_BottomRight) clc; ...

presque 10 ans il y a | 1 réponse | 0

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Question


problems with reading a text file in matlab
my file is : aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb ccc...

presque 10 ans il y a | 1 réponse | 0

1

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Question


i'm working with image ,i cant load 512*512 image
all time i face a error Attempted to access N(1,1,3); index out of bounds because size(N)=[256,256,1].my code is here: ...

presque 10 ans il y a | 1 réponse | 0

1

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Question


i am a begginer of matlab... i can not find a text encryption and decryption code of matlab using AES, can anyone help me ?
I have the code of AES implementaion , but i can not .. encrypt or decrypt a text message with it, it just only shows the outpu...

environ 10 ans il y a | 1 réponse | 0

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