97 total contributions since 2018

My area of interests are image processing and signal processing.

Answered

Area measurement of image objects using regionprops

@Walter Roberson I got it. Thank you so much!.

Area measurement of image objects using regionprops

@Walter Roberson I got it. Thank you so much!.

16 days ago | 0

| accepted

Question

Area measurement of image objects using regionprops

I have 10 similar images where all the image have 5 objects. I need to find areas of objects. I have converted grayscale imag...

16 days ago | 2 answers | 0

Question

How to extract text from image?

How to extract text from attached image?

17 days ago | 0 answers | 0

Answered

plotting x and y data contineously

Check with below FAQ <https://in.mathworks.com/matlabcentral/answers/298866-how-to-plot-two-n-n-matrices-in-same-plot>

plotting x and y data contineously

Check with below FAQ <https://in.mathworks.com/matlabcentral/answers/298866-how-to-plot-two-n-n-matrices-in-same-plot>

17 days ago | 0

Answered

how can i reduce the bit rate of a video using matlab

Hi, you can apply video compression techniques and also reduce the frame size.

how can i reduce the bit rate of a video using matlab

Hi, you can apply video compression techniques and also reduce the frame size.

1 year ago | 0

Answered

I am working on Iris recognition I have to compare one iris image with all the database.For that I have to use hamming distance which I calculated and stored it in .mat file but I do not understand that how to do comparison using .mat files.

Hi, please check below FAQ, https://www.mathworks.com/matlabcentral/answers/344233-hello-i-wanna-do-iris-recognition-by-compare...

I am working on Iris recognition I have to compare one iris image with all the database.For that I have to use hamming distance which I calculated and stored it in .mat file but I do not understand that how to do comparison using .mat files.

Hi, please check below FAQ, https://www.mathworks.com/matlabcentral/answers/344233-hello-i-wanna-do-iris-recognition-by-compare...

1 year ago | 0

Answered

How create training and testing data with k-fold validation using neural network ?

K-fold cross validation you can use, https://www.mathworks.com/help/stats/cvpartition.test.html, https://www.mathworks.com/he...

How create training and testing data with k-fold validation using neural network ?

K-fold cross validation you can use, https://www.mathworks.com/help/stats/cvpartition.test.html, https://www.mathworks.com/he...

1 year ago | 0

| accepted

Answered

How to check the number of ones from certain row to the 1st row?

MathWorks Please use this

How to check the number of ones from certain row to the 1st row?

MathWorks Please use this

1 year ago | 0

Answered

FFT computation for a sampled data output

The function that you are used for loading .csv file is incorrect. please use below line. if true x = readtable('sin10...

FFT computation for a sampled data output

The function that you are used for loading .csv file is incorrect. please use below line. if true x = readtable('sin10...

1 year ago | 0

Answered

L2 norm or Frobenius norm?

Use 'fro' to estimate the Frobenius norm of a matrix, which estimates the 2-norm of the matrix. if true x=your_matrix;...

L2 norm or Frobenius norm?

Use 'fro' to estimate the Frobenius norm of a matrix, which estimates the 2-norm of the matrix. if true x=your_matrix;...

1 year ago | 0

Answered

Saving Images in a Cell Array

Hi, first You have to save your input images as "001_001.jpg", "001_002.jpg"...."001_023.jpg", "002_001.jpg", "002_002.jpg" e...

Saving Images in a Cell Array

Hi, first You have to save your input images as "001_001.jpg", "001_002.jpg"...."001_023.jpg", "002_001.jpg", "002_002.jpg" e...

1 year ago | 0

Answered

How to velocity update in PSO?

Please check this example code, <https://in.mathworks.com/matlabcentral/fileexchange/52857-particle-swarm-optimization-pso>

How to velocity update in PSO?

Please check this example code, <https://in.mathworks.com/matlabcentral/fileexchange/52857-particle-swarm-optimization-pso>

1 year ago | 1

| accepted

Answered

i have binary image and need to divide it into blocks

if true I = binary_image; numBlkH = 8; numBlkW = 8; [imgH,imgW,~] = size(I); szBlkH = [repmat(fix(imgH/...

i have binary image and need to divide it into blocks

if true I = binary_image; numBlkH = 8; numBlkW = 8; [imgH,imgW,~] = size(I); szBlkH = [repmat(fix(imgH/...

1 year ago | 0

| accepted

Answered

Hi I am trying to fminsearch to optimize couple of parameters, however when I give the start I get the following error Optimization running. Error running optimization. XLSREAD unable to open file 'C:\Users\GJ computational\Desktop\Book2.xlsx'. File

<https://in.mathworks.com/matlabcentral/answers/7145-how-to-import-numerous-excel-files-into-matlab>

Hi I am trying to fminsearch to optimize couple of parameters, however when I give the start I get the following error Optimization running. Error running optimization. XLSREAD unable to open file 'C:\Users\GJ computational\Desktop\Book2.xlsx'. File

<https://in.mathworks.com/matlabcentral/answers/7145-how-to-import-numerous-excel-files-into-matlab>

1 year ago | 0

Answered

i need to solve this equation

if true eqn = 81^7-(x/27)^(2*x) == 0; solx = solve(eqn, x) end

i need to solve this equation

if true eqn = 81^7-(x/27)^(2*x) == 0; solx = solve(eqn, x) end

1 year ago | 0

Answered

classify the data using LSTM

Check this link, where you can create net based on your requirements, <https://in.mathworks.com/help/nnet/ug/long-short-term-...

classify the data using LSTM

Check this link, where you can create net based on your requirements, <https://in.mathworks.com/help/nnet/ug/long-short-term-...

1 year ago | 1

| accepted

Answered

How do I make an average of points ?

Check this, if true X = rand(11,10); k = 6; MA = movmean(X,[(k-1) 0]); Y = MA(k:k:end,:); end

How do I make an average of points ?

Check this, if true X = rand(11,10); k = 6; MA = movmean(X,[(k-1) 0]); Y = MA(k:k:end,:); end

1 year ago | 0

Answered

Plot range of values as bars

For example, if true x = 1:1:12; y = [34 23 47 28 41 35 21 18 38 20 30 32]; bar(x,y) end

Plot range of values as bars

For example, if true x = 1:1:12; y = [34 23 47 28 41 35 21 18 38 20 30 32]; bar(x,y) end

1 year ago | 0

Answered

Plot range of values as bars

Check this, <https://in.mathworks.com/help/matlab/ref/bar.html>

Plot range of values as bars

Check this, <https://in.mathworks.com/help/matlab/ref/bar.html>

1 year ago | 0

Answered

How to use textscan to read my 2nd column and ignore the string or non numerical values?

You can use this, <https://in.mathworks.com/matlabcentral/answers/161434-reading-only-numeric-data-in-a-text-file>

How to use textscan to read my 2nd column and ignore the string or non numerical values?

You can use this, <https://in.mathworks.com/matlabcentral/answers/161434-reading-only-numeric-data-in-a-text-file>

1 year ago | 0

Answered

Save figure as pdf without changing fontname

You can use this, <https://in.mathworks.com/help/matlab/creating_plots/save-figure-at-specific-size-and-resolution.html>

Save figure as pdf without changing fontname

You can use this, <https://in.mathworks.com/help/matlab/creating_plots/save-figure-at-specific-size-and-resolution.html>

1 year ago | 1

Answered

How to plot a surface from 3D lines?

Try this, <https://in.mathworks.com/matlabcentral/answers/67190-how-to-plot-3d-using-coordinates>

How to plot a surface from 3D lines?

Try this, <https://in.mathworks.com/matlabcentral/answers/67190-how-to-plot-3d-using-coordinates>

1 year ago | 0

Answered

could anyone help me how to write the expression in matlab

if true M=yourInteger; % greater than 1 for k=0:M-1 t(M-1)=[M-1;k].*t(k) end end

could anyone help me how to write the expression in matlab

if true M=yourInteger; % greater than 1 for k=0:M-1 t(M-1)=[M-1;k].*t(k) end end

1 year ago | 0

Answered

Plotting a 3D surface

Try this, if true x = linspace(0,1,3); y = linspace(0,1,3)'; [X,Y] = meshgrid(x,y); Z = (X.^3) - 3*X.*...

Plotting a 3D surface

Try this, if true x = linspace(0,1,3); y = linspace(0,1,3)'; [X,Y] = meshgrid(x,y); Z = (X.^3) - 3*X.*...

1 year ago | 1

Answered

Grouping elements by conditions

This is your answer. X=[ 1 1.2 1.5 1.9 5 8 8.1 10 12 12.3 12.5]; Len=diff([0,find(diff(a)>1),numel(a)]); S=ma...

Grouping elements by conditions

This is your answer. X=[ 1 1.2 1.5 1.9 5 8 8.1 10 12 12.3 12.5]; Len=diff([0,find(diff(a)>1),numel(a)]); S=ma...

1 year ago | 4

Answered

Deletion of first element from excel while writing that in to txt file

This will be the your answer. if true misvar = xlsread('mistry.xls'); misvar(1,1)=""; % empty string end

Deletion of first element from excel while writing that in to txt file

This will be the your answer. if true misvar = xlsread('mistry.xls'); misvar(1,1)=""; % empty string end

1 year ago | 1

Answered

how to index a 3D image

@Stephen Devlin: For this also, you can see the below link. <https://in.mathworks.com/help/images/examples/enhancing-multispe...

how to index a 3D image

@Stephen Devlin: For this also, you can see the below link. <https://in.mathworks.com/help/images/examples/enhancing-multispe...

1 year ago | 1

| accepted

Answered

divide image into blocks whatever the number of these blocks

Please check the link, <http://www.andrewjanowczyk.com/dividing-and-re-merging-large-images-humpty-dumpty/>

divide image into blocks whatever the number of these blocks

Please check the link, <http://www.andrewjanowczyk.com/dividing-and-re-merging-large-images-humpty-dumpty/>

1 year ago | 0

Answered

How to make a truecolor tif from arrays

Please check this, <https://in.mathworks.com/help/images/examples/enhancing-multispectral-color-composite-images.html>

How to make a truecolor tif from arrays

Please check this, <https://in.mathworks.com/help/images/examples/enhancing-multispectral-color-composite-images.html>

1 year ago | 2

| accepted

Answered

i have to find periodogram of my EEG bandpassed motor imagery signal in 8, 30 hz signal. since i am new to this concept, please help me to get power density where my signal is from dataset and my sampling frequency is 250 HZ. ?

Check the link where change sampling frequency based on your requirement. <https://in.mathworks.com/matlabcentral/answers/285...

i have to find periodogram of my EEG bandpassed motor imagery signal in 8, 30 hz signal. since i am new to this concept, please help me to get power density where my signal is from dataset and my sampling frequency is 250 HZ. ?

Check the link where change sampling frequency based on your requirement. <https://in.mathworks.com/matlabcentral/answers/285...

1 year ago | 0

| accepted