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Yuvaraj Venkataswamy
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My area of interests are image processing and signal processing.
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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!.
4 years 前 | 0
| 已接受
提问
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...
4 years 前 | 2 个回答 | 0
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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>
4 years 前 | 0
| 已接受
已回答
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.
5 years 前 | 0
已回答
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...
5 years 前 | 0
已回答
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...
5 years 前 | 0
| 已接受
已回答
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
5 years 前 | 0
已回答
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...
6 years 前 | 0
已回答
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;...
6 years 前 | 1
已回答
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...
6 years 前 | 1
已回答
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>
6 years 前 | 1
| 已接受
已回答
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/...
6 years 前 | 0
| 已接受
已回答
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>
6 years 前 | 0
已回答
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
6 years 前 | 0
已回答
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-...
6 years 前 | 1
| 已接受
已回答
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
6 years 前 | 0
已回答
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
6 years 前 | 0
已回答
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>
6 years 前 | 0
已回答
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>
6 years 前 | 0
已回答
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>
6 years 前 | 1
已回答
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>
6 years 前 | 0
已回答
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
6 years 前 | 0
已回答
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.*...
6 years 前 | 1
已回答
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...
6 years 前 | 4
已回答
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
6 years 前 | 1
已回答
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...
6 years 前 | 1
| 已接受
已回答
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/>
6 years 前 | 0
已回答
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>
6 years 前 | 2
| 已接受
已回答
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...
6 years 前 | 0
| 已接受