# KALYAN ACHARJYA

#Image Processing #Learner Alma #TezpurUniv Insta: @simmpleness_human

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**Content Feed**

How to save multiple vector signals in one variable using wavelet Denoising?

F data can be store in cell array. F=cell(1,60); for i = 1:60; x = y(i,:) ; F{i}= wden(x,'rigrsure','s','mln',5,'d...

14 days ago | 0

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How to smooth and normalize noisy data

Please check the smoothdata Matlab function https://in.mathworks.com/help/matlab/ref/smoothdata.html it can smooth the data i...

15 days ago | 0

What is the correct way to calculate the average dice score for multiple data in binary image segmentation?

Here>explanation with references https://stats.stackexchange.com/questions/550646/proper-way-to-calculate-mean-dice-coefficient...

29 days ago | 0

Decode the cryptogram was encoded from 2x2 matrix

"but it keeps saying invalid in the inverse command and I can't figure why" >> X =[5 2; 25 11; -2 -7; -15 -15; 32 14; -8 -13; 3...

2 months ago | 0

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How to change maximum Index value in MATLAB

I re-read the question again- I want to find the maximum pixel (index) for example in above 55 is the maximum pixel (index) th...

2 months ago | 0

Matlab Extracting X and Y coordinates

Concept wise: cross_index=find(data1==data2); This may not work, if there may floating numbers, in that case you may follow th...

2 months ago | 0

About interpolation pressure & temperature

The are multiple ways to sort the structure fields data points- Procedure 1: b=load('Tempe.mat'); temp_data=sort(vertcat(b.T...

3 months ago | 0

I need help trying to write a code for a logistic map that requires a range of r between 0 and 5

Refer the following File Exchange FIle, it may be useful- https://in.mathworks.com/matlabcentral/fileexchange/32424-logistics-m...

3 months ago | 0

Create x and y coordinates with available values

cor_xy=[randi(20),randi(30)]

3 months ago | 0

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get 2 set of random coordinates

x=0:20; % Or any Random Data y=0:30; % Or any Random Data cor_data=[x(randi(length(x))),y(randi(length(y)))]

3 months ago | 0

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White Noise generator same signal every time I run the simulation

Jurt use the rand function & add to the original signal data signalData= noiseData=rand(1,length(signalData)); signalNoise=si...

3 months ago | 0

I have matrix K and Z

Another way: K = {[12, 50, 15, 99, 61, 74 ,71];[54, 23, 14, 13, 16, 89,67];[12, 45, 78, 90, 12, 56, 16]}; Z = {[ 0, 1, 0, 0, 0...

3 months ago | 0

how to batch save and load loop variable

#Cell Array cell a=cell(1,3); for i = 1:3 a{i}=rand(1,10) end Once strore in the cell array, you can do/access data in ...

4 months ago | 0

I have 3 SST plots which I wish to put side-by-side in 1 figure in the form of a 1x3 panel. How do I go about this? I have attached my plots and the code.

long = ncread(filename,'XAXIS') lat = ncread(filename, 'YAXIS') SST = ncread(filename,'SST') SST_Oct = SST(:,:,10:10) SST_No...

4 months ago | 1

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Quiver Plot over Binary map

im = imread('Genova_Binary.tif'); [x,y] = meshgrid(-2:.2:2,-1:.15:1); z = x .* exp(-x.^2 - y.^2); [px,py] = gradient(z,.2,.15)...

4 months ago | 0

Some basic MATLAB questions

Hint: rand https://in.mathworks.com/help/matlab/ref/rand.html

4 months ago | 0

Have implemented for loop corectly in my code?

I don't think, is there any loop needed, it can be avoided, just define the following parameters s1=.. s2=.. g1=.. g2=.. Eo...

5 months ago | 0

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i want a good syntax form

Using loop: Is that OK? data_cell=cell(..,..) %Preallocate Memory iter=1:3:size(s,1); for i=1:3:6 data_cell{i}=s(i,:)*Qb...

5 months ago | 0

How to mark a point on scatter plot obtained using gscatter?

Yes you can specify that, see my example (Just for understanding) x=randi(100,[1,50]); y=randi(100,[1,50]); gscatter(x,y); ...

5 months ago | 1

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Unrecognized function or variable 'readstruct'

Reason may be: this function is Introduced in R2020b Matlab Version readstruct Its works Matlab 2020b & later version only. ...

5 months ago | 0

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why get this message "Array indices must be positive integers or logical values." i for loop?

Yes, Matlab allows indexing for positive integer only x=zeros(1,600); for i = 1:600 iNext=i + 1; x(iNext)=x(i) ...

5 months ago | 1

How I change the name of the variables in a table?

Just load the table, for example - var1=[1:10]'; var2=[11:20]'; T=table(var1,var2) % Change the Var names T_new=renamevars...

5 months ago | 0

Why is it giving this error?

As the error, it seems V has more than 2 dimensions, please try pagectranspose pagectranspose if your requirement is fulfille...

5 months ago | 0

How do I divide a row vector (1X3) by normalized scalar?

How do I divide a row vector (1X3) by normalized scalar? You can divide it element wise. Example: >> vec=1:10 vec = 1 ...

5 months ago | 0

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Index exceeds number of array elements

I didnot find any coding syntax error, but code improvement is required. r1=17.6e-2; % inner radius of sphere, m r2=23.6e-2;...

6 months ago | 0

About using X = dither(RGB,MAP)

The dither operation based on the following work: Floyd-Steinberg's error diffusion dither algorithm Floyd, R. W., and L. Ste...

6 months ago | 1

I need the value of a changing variable at a specific value

The value is Cl_val=Cl(find(LDR==max(LDR)))

6 months ago | 0

find the coefficients a, b, and c of the quadratic polynomial. that passes through the three points (x, y)

Sufficients Hints: As it is the part of your work, please check the hints below, the equation is y = ax^2+ bx + c with three g...

6 months ago | 0

Smoothing just part of the data

One way data=rand(5000,1); data_smooth=data; % Just copy to retain original data data_ex=smoothdata(data(500:1500)); data_s...

6 months ago | 0

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imagedatastore grayscale to rgb for maskRcnn

You may convert the gray image to 3D array planes rgb_gray=cat(3,gray_image,gray_image,gray_image); Just do for one images, fo...

6 months ago | 0

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