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Feeds
Question
please explain size function in MATLAB
if(size(img,3) == 1) disp('Error: Pick a color image'); return;
mer än 6 år ago | 1 answer | 0
1
answerQuestion
is it possible to substitute multiplication and division by addition and subtraction respectively in MATLAB?
is it possible to substitute multiplication and division by addition and subtraction respectively in MATLAB?
mer än 6 år ago | 1 answer | 0
1
answerQuestion
Does operating speed of MATLAB depends on hardware?
Will MATLAB work faster on Desktop than Laptop, if both are of same configurations?
nästan 8 år ago | 0 answers | 0
0
answersQuestion
How can I convert a lena.bmp image to lena.tif?
Is there any function in MATLAB which convert the image type? If i rename the name of the image manually from "lena.bmp" to "len...
nästan 8 år ago | 3 answers | 0
3
answersQuestion
Is image type show any difference in calculating the time to encrypt or decrypt or encrypt and decrypt the image?
Is image type show any difference in calculating the time to encrypt or decrypt or encrypt and decrypt the image? I am calculat...
nästan 8 år ago | 2 answers | 0
2
answersQuestion
How to calculate PSNR gain?
I want to calculate averge percentage gain for the PSNR values given in the table *s.no PSNR at column 1 PSNR a column 2* ...
mer än 8 år ago | 2 answers | 0
2
answersQuestion
Can both PSNR and Compression ratio be good for the same image?
I am using a compression algorithm for a image. Then I am calculating both PSNR and compression ratio of the image. I am gettin...
mer än 8 år ago | 1 answer | 0
1
answerQuestion
How to know about the co-ordinates of a point in a MATLAB plot
<</matlabcentral/answers/uploaded_files/31521/111.png>> how to know about the value of intersection point . Let it be blue...
nästan 9 år ago | 1 answer | 0
1
answerQuestion
I am using the inbuilt MATLAB code for a vector, can anyone please tell me how to use the same code for images?
code is at http://in.mathworks.com/help/comm/ug/source-coding.html#fp6485 predictor = [0 1]; % y(k)=x(k-1) partition = [...
nästan 9 år ago | 1 answer | 0
1
answerQuestion
I want a differential pulse code modulation(DPCM) matlab code for images
how to apply DPCM on images
nästan 9 år ago | 1 answer | 0
1
answerQuestion
I have few questions regarding string. I have applied Run Length Encoding on a large string. But at the output I am getting some unwanted symbols. why it is so?
function y = estring(str) len = numel(str); %65536 i = 0; count = zeros(1,len); y=[]; while( i<len ) ...
nästan 9 år ago | 1 answer | 0
1
answerQuestion
how to remove of single quote from a string?
I am having a string s=' ttt'ppPPrrr'; now I want to remove that single quote in between the string
nästan 9 år ago | 1 answer | 0
1
answerQuestion
can you please tell me how to remove any special characters from a string in MATLAB?
special characters include anything else from alphabets(a-z) and(A-Z)
nästan 9 år ago | 1 answer | 0
1
answerQuestion
can you please tell me how to apply run length encoding on the dominant pass list of EZW
I am referring this paper. Please help....
nästan 9 år ago | 0 answers | 0
0
answersQuestion
I am executing the code given at link and getting the error"Error using bitget Double inputs must have integer values in the range of ASSUMEDTYPE."
http://in.mathworks.com/matlabcentral/fileexchange/2818-huffman-coding-and-arithmetic-coding/content//Arith06.m what is going...
nästan 9 år ago | 0 answers | 0
0
answersQuestion
how can I eliminate space between characters of a string?
e.g. let my string is this t P t P t P t P t P t P t P t P t P t How to convert this string with no white...
nästan 9 år ago | 1 answer | 0
1
answerQuestion
how to convert bpp(bits per pixel to compression ratio)?
e.g. let bpp is 0.1870....than what will be the compression ratio?
nästan 9 år ago | 1 answer | 0
1
answerQuestion
hello experts...see I am executing a code....want some suggestions
My code is %script----------------------------------% X= ' PPtPPPPP'; lengh=numel(X); aaAA=estring(X); ...
nästan 9 år ago | 1 answer | 0
1
answerQuestion
I want to know if I am calculating the results are right?
I have applied run length encoding on a string or characters. Let it be 'ttttttPPttttttPPNNNtttttt' which after Run lengt...
nästan 9 år ago | 2 answers | 0
2
answersQuestion
How to calculate the PSNR of the complete image
I have applied 1 level DWT on a lena image. After this I have applied image compression technique , separately on each subband(L...
nästan 9 år ago | 0 answers | 0
0
answersQuestion
calculation of PSNR cetween two images
If I am calculating PSNR of a image then should I use PSNR=psnrtest(Original_image,reconstructed_image) OR Original...
nästan 9 år ago | 1 answer | 0
1
answerQuestion
I am executing the code below for run length encoding, how to make code for inverse Run Length encoding to get the decompressed image?
my code for RLE is function y = estring(str) len = numel(str); %65536 i = 0; count = zeros(1,len); y=[]; wh...
nästan 9 år ago | 0 answers | 0
0
answersQuestion
download test images for MATLAB
can any one tell me about website for download test images from it ?
nästan 9 år ago | 1 answer | 0
1
answerQuestion
PSNR of two unequal matrices
If I am executing a code of run length encoding on an image matrix, giving me an another image matrix of not of that size(due t...
nästan 9 år ago | 0 answers | 0
0
answersQuestion
converting numbers to matrix(matrix formation)
If I am having some numbers, e.g x=[ 12 12 12 2 2 2 2 3 3 ]; and now I want to convert into a matrix of 3 * 3. Which M...
nästan 9 år ago | 1 answer | 0
1
answerQuestion
how to convert this image to the original one?
<</matlabcentral/answers/uploaded_files/29795/mm.png>> <</matlabcentral/answers/uploaded_files/29796/lena_2.bmp>> ...
nästan 9 år ago | 1 answer | 0
1
answerQuestion
can anyone please convert this codef or 512*512*3 lena image, it is working well with * lena image
close all; clear all; clc; *[A,map]=imread('lena_2.bmp'); RGB = ind2rg...
nästan 9 år ago | 0 answers | 0
0
answersQuestion
see I am executing the code at the link given, but why it is not working on a 512* 512 , 8 bit image
http://in.mathworks.com/matlabcentral/fileexchange/39925-1d-2d-discrete-wavelet-transform/content/DWT/dwt.m While the code is w...
nästan 9 år ago | 1 answer | 0
1
answerQuestion
value of compression ratio can be 11 ?
value of compression ratio can be 11 ? or there is a fix range for compression ratio? if yes then what is that I am executing...
nästan 9 år ago | 0 answers | 0
0
answersQuestion
why 512 * 512 png image is executing properly the DWT code while 512*512 mbp image is not
close all; clear all; map=gray(256); % get db filter length 6 [Lo_D,Hi_D,Lo_R,Hi_R] = wfilters('bior5.5'); imDat...
nästan 9 år ago | 0 answers | 0
0
answers
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