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KALYAN ACHARJYA


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1,712 total contributions since 2017

#Image Processing
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Answered
Finding coordinates From image
You have do little effort to localize the eye section in the image. You may use imfindcircles function (Read about CHT Image Pro...

3 days ago | 0

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How to verify SNR of a signal after using the awgn function
SNR https://in.mathworks.com/help/signal/ref/snr.html

3 days ago | 0

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need help for plotting of data
>> whos T Name Size Bytes Class Attributes T 10x10x10 8000 double He...

3 days ago | 0

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Is there a best way to identify anomalous peaks in signals and remove them?
"identify anomalous peaks in signals and remove them?" You can do this in many ways, it depends on you and your exact needs. Bu...

3 days ago | 0

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video camera data processing
Convert the video in series of images (frames) Here https://in.mathworks.com/matlabcentral/answers/31845-convert-avi-file-to-s...

4 days ago | 0

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store user input in an array
user_input=zeros(1,10); n=1; while n<=10 user_input(n)=input('Enter positive real number : '); n=n+1; end fprintf('...

4 days ago | 0

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How can I generate random numbers
"I want a2 should generate one randon no, a1 should generate one random no and then a new range should form and i should be able...

4 days ago | 0

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Correlation using for loop
Problem, you are trying to access the rows to 7400, but the rows in M _ET [3700 12] have a maximum of 3700, as M_ET [3700 12] ...

4 days ago | 0

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Only the real part of the complex number is displayed and not the imaginary part
You have to run the code (Click on the green triangular button) to execute eig function.

5 days ago | 0

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Vertical line for building detection
You can do the thresholding or oher image suitable segmentation approach to get the ROI, (preferbly vertical). In that case, you...

5 days ago | 0

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Cepstrum analysis in image processing
Steps: Red the image (imread) Covert Gray Scale Image (rgb2gray) Add Noise (imnoise) Filter the Noisy Image (imfilter) Comp...

6 days ago | 0

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I have a 3D matrix, how to do clustering of this matrix?
Whether dimention affects clustering results, I think no, assigns different clusters values to the categories. You may apply the...

6 days ago | 0

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how to find coin value in an image using matlab
Steps: "I need to find the value of a coin in the image" Preprocessing (If required) Segmentation (ROI) Apply Sort of Morpho...

6 days ago | 0

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Can you help me to plot the derivative of the function.
plot(diff(hx)); https://in.mathworks.com/help/matlab/ref/diff.html

7 days ago | 0

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width to height ratio of various images
It seems to be a project related task (not homework), so I have answered it Supposedly, you have that red markers in the image,...

8 days ago | 0

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how to add more than 2 images for brain tumor detection?
Addition of four images result=image1+image2+image3+image4; If you add all four images, the maximum scale can be a maximum num...

9 days ago | 0

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How to add poisson's noise to predefined binary array (4 x 4 array)
Note: Having 0 and 1 in array data and actually logical data array are two different things. Please refer the inbuilt function ...

10 days ago | 0

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How to move a white square through a black grid
Have you tried this way? x=zeros(256,256); original_dat=x; block=ones(8,8); h=figure, for i=1:8:256 for j=1:8:256 ...

10 days ago | 1

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How can I solve this problem?
Here, I provided the answer based on following "I want to multiply "data1" with "c1" row to row and bit to bit values. I am us...

11 days ago | 0

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Object extraction from image
Simplest Case: Assuming you are considering MATLAB internal image rice.png image. The image is quite clear, you may use direct...

11 days ago | 0

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How to delete rows or move rows in the 2D Matrix
"I have a problem that is I have a 2D matrix of [11x1000] with the image below, it can be seen that in the initial row the value...

11 days ago | 0

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How to plot different values on same figure?
Use yyaxis https://in.mathworks.com/help/matlab/ref/yyaxis.html Otherwise: If you want to generate multiple plots with differ...

11 days ago | 0

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How can I make a string?
B=reshape(A,[4,3])'; C=num2str(B); bin2dec(C) Output : ans = 2 10 6 Note: Loop is not necessity .

12 days ago | 1

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Answered
Derivative of Ramp, and step signal.
Use diff, more detail here syms % Varibles declaration ramp_fun=......% ramp function step_fun=......% step function d_ra...

12 days ago | 0

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Convolution on all dimensions of an image
"I want this code to apply on RGB (and more dimentions) too." One way: Try with different planes, and concatenation later, lets...

13 days ago | 0

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Adding Noise to RGB Image
Refer the following File Exchange link, to add Salt or Pepper noise with certain densities. https://in.mathworks.com/matlabcen...

13 days ago | 0

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How can i calculate entropy of an image by using the entropy's type?
"But i dont really know which value corresponds to which variable" E= Let's suppose any gray scale Image of size 10x10 image...

13 days ago | 0

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how to find pixel coordinate?
Note: Suggested to avoid "i" as a vaiable name, as it may conflict with inbuilt "i" >> i ans = 0.0000 + 1.0000i Lets con...

13 days ago | 1

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Answered
Finding 0 in data for n X 2 array
Another way result=data(~(data(:,1)==0 & data(:,2)==0),:) result = 36 -31 36 -27 35 -30 32 -30 ...

14 days ago | 1

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Answered
How to calculate the average with "for loop"
How to calculate the average with "for loop" data11 = csvread('person01_boxing_d1_uncomp.csv'); data22 = csvread('person01_han...

14 days ago | 0

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