# KALYAN ACHARJYA

#Image Processing

#Learner Alma #TezpurUniv

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sort output of roots or residue so that the repeated roots occur together

>> data=roots([1 8 38 88 121]) data = -2.0000 + 2.6458i -2.0000 - 2.6458i -2.0000 + 2.6458i -2.0000 - 2.6458i ...

ungefär 2 månader ago | 0

how to get Y Value from a plot having 3 curves as shown in figure?

I have assumed that you have the 3 data for three individual plot, with respect to same x values, let say y1,y2,y3 for the same ...

ungefär 2 månader ago | 0

Manipulation of certain matrix elements which meet a certain criterion

mat=randi([-5,5],[100,100]); % Sample Matrix [r,c]=find(mat(10:15,11:13)<0==1); % Get the indices mat(9+r,10+c)=x; % x Manupu...

ungefär 2 månader ago | 0

FFT of Signal doesn´t work well

xabs(2nd Plot) is the absolute of fft ??

ungefär 2 månader ago | 0

Determining mean and creating a bar chart in Matlab

load LabelTable.mat % Extract data % ID 1 Animal_ID_1 = T(T.Caller_ID==1,:); % ID 2 Animal_ID_2 = T(T.Caller_ID==2,:); % I...

4 månader ago | 0

Is there a way to automatically extract the first and last number in a for loop?

So my question is, is there a way to automatically extract the first and last number in the sd column and place them- Just stor...

4 månader ago | 0

Segmentation of multiples ecg signals

First Part: load ecg_data_file Read the y axis data (mV) as another column data & store in new variable, say ecg_data. The ti...

4 månader ago | 0

I have an image ( bit it has a ‘spotty’ appearance). Can you help restore it to a less spotty state

Please follow this for reference https://in.mathworks.com/matlabcentral/fileexchange/69333-image-denoising-using-notch-filter-...

4 månader ago | 0

dsolve for multiple plots on a single figure

Using Loop A = 2; % cross-sectional area (m^2) T = 0.1; % integral time c...

5 månader ago | 0

How do I select the particular region of the segmented image in MATLAB

Possible: Convert the image to binnary & trace the region?? If you can perform an operation on a binary image, its indexes can a...

5 månader ago | 0

how to save the data in csv file from the plot

Options: The plot is a figure, you can save as Matlab .fig files (Use save as option) Save the figure plot result as an image ...

5 månader ago | 0

Given a linear system i want to do Gauss-Seidel iteration.But getting error.Would appreciate if anyone fix me the code. Thanks.

No coding syntax error x(1)=1.5; y(1)=-1; z(1)=1; iter(1)=0; for n=1:4 iter(n+1)=n; x(n+1)=(16+3*y(n)-2*z(n))/8; y...

5 månader ago | 0

Add multiple elements to array

Yes it's OK, horizontal concatenation x=[x,3] Example: >> x=1:4 x = 1 2 3 4 >> x=[x,9:12] x = 1 ...

5 månader ago | 0

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Image pre-processing to remove noise

Absolutely possible, you can remove the white pixels based on area (Extract objects from binary image by size) and do some AND o...

5 månader ago | 0

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I want to Generate Chirp Signal

See the MATLAB inbuilt function, you need to change the properties only https://in.mathworks.com/help/signal/ref/chirp.html

5 månader ago | 0

How to write loops within loops for a function.

Vs = 8:-0.1:7 o/p: 8 7.9 7.8 7.7 7.6 7.5 7.4 7.3 7.2 7.1 7 Hoe you can do the ...

5 månader ago | 0

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xlswrite() to write to csv file not working

You are trying to save in CSV, Prefer this one https://in.mathworks.com/help/matlab/ref/writematrix.html

5 månader ago | 0

Matrix dimension conversion for image input layer

Sir, you can convert the size of the image from 2D to 3D using the following way (The image isualization is not affected) ori_i...

5 månader ago | 0

sum of array by specific index value

result=sum(second_arary(first_array)) More result=sum(hasil_tambah_array(index))

5 månader ago | 0

Image pre-processing to make pixels in one straight line

Yes, you can do that multiple ways Get the two highest-spaced white pixels in the image, column numbers (left column and right ...

5 månader ago | 0

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HSV color assignment depending on the height of the corresponding histogram bin

If you use less than & equal (both inclusion), it may be cover the entire image. e.g if h_level>0.75 & s_level>0.75 pixel...

5 månader ago | 0

How to count objects in an image?

The approprite approach based on the type of input images, though you can follow the following (General Case) Steps: Do the se...

5 månader ago | 1

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Keep track of Matrix row indices after deleting some rows

You can store the A in a temporary variable, and do the modification on temp temp=A; Now do the all modification on temp. Res...

6 månader ago | 0

representation of many curves

Snippet: % Images Folder Directory % Call the images one by one, there are multiple simmilar question, please check % Load an...

6 månader ago | 0

help with pie chart

Suficients Hints: Enter the levels by yourself. counts=input('Enter the Total Cetegory'); p=[]; i=1; while i<=counts p(...

7 månader ago | 0

plot to the function

Hint: z=[0, 0.03, 0.2, 0.5, 1,2]; r=0:0.01:3; for i=1:length(z) eq=..... % Here z(i) plot(eq); % r vs. eq hold on; end A...

7 månader ago | 0

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Plot two curve of different program in same graphs

Call two programs as function, see the following example Code 1: function code1(x) y=exp(x); plot(y); hold on; end Code 2...

7 månader ago | 0

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How to convert 'NaN' to numeric NaN

Is this? >> str2num('NaN') ans = NaN Or data={2,5,NaN,6} cell2mat(data) # data = 1×4 cell array {[2]} ...

7 månader ago | 0

Difficulty plotting equations.

#Do modification, no coding error t=0:.2:2; y1=1*cos(2*pi*3*t)+0.8*sin(2*pi*8*t); y2=0.6*cos(2*pi*0.6*t)+(pi/3)+0.25*sin(2*p...

7 månader ago | 1

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3 equations with 3 unknowns I need the answer ASAP plz help

Solve System of Linear Equations Using linsolve https://in.mathworks.com/help/symbolic/solve-a-system-of-linear-equations.html

7 månader ago | 0