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tina jain


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please explain size function in MATLAB
if(size(img,3) == 1) disp('Error: Pick a color image'); return;

5 years ago | 1 answer | 0

1

answer

Question


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?

5 years ago | 1 answer | 0

1

answer

Question


Does operating speed of MATLAB depends on hardware?
Will MATLAB work faster on Desktop than Laptop, if both are of same configurations?

6 years ago | 0 answers | 0

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Question


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...

6 years ago | 3 answers | 0

3

answers

Question


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...

6 years ago | 2 answers | 0

2

answers

Question


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* ...

7 years ago | 2 answers | 0

2

answers

Question


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...

7 years ago | 1 answer | 0

1

answer

Question


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...

7 years ago | 1 answer | 0

1

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Question


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 = [...

7 years ago | 1 answer | 0

1

answer

Question


I want a differential pulse code modulation(DPCM) matlab code for images
how to apply DPCM on images

7 years ago | 1 answer | 0

1

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Question


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 ) ...

7 years ago | 1 answer | 0

1

answer

Question


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

7 years ago | 1 answer | 0

1

answer

Question


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)

7 years ago | 1 answer | 0

1

answer

Question


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....

7 years ago | 0 answers | 0

0

answers

Question


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...

7 years ago | 0 answers | 0

0

answers

Question


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...

7 years ago | 1 answer | 0

1

answer

Question


how to convert bpp(bits per pixel to compression ratio)?
e.g. let bpp is 0.1870....than what will be the compression ratio?

7 years ago | 1 answer | 0

1

answer

Question


hello experts...see I am executing a code....want some suggestions
My code is %script----------------------------------% X= ' PPtPPPPP'; lengh=numel(X); aaAA=estring(X); ...

7 years ago | 1 answer | 0

1

answer

Question


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...

7 years ago | 2 answers | 0

2

answers

Question


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...

8 years ago | 0 answers | 0

0

answers

Question


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...

8 years ago | 1 answer | 0

1

answer

Question


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...

8 years ago | 0 answers | 0

0

answers

Question


download test images for MATLAB
can any one tell me about website for download test images from it ?

8 years ago | 1 answer | 0

1

answer

Question


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...

8 years ago | 0 answers | 0

0

answers

Question


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...

8 years ago | 1 answer | 0

1

answer

Question


how to convert this image to the original one?
<</matlabcentral/answers/uploaded_files/29795/mm.png>> <</matlabcentral/answers/uploaded_files/29796/lena_2.bmp>> ...

8 years ago | 1 answer | 0

1

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Question


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...

8 years ago | 0 answers | 0

0

answers

Question


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...

8 years ago | 1 answer | 0

1

answer

Question


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...

8 years ago | 0 answers | 0

0

answers

Question


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...

8 years ago | 0 answers | 0

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answers

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