# KALYAN ACHARJYA

#Image Processing

#Learner Alma #TezpurUniv

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I need to plot the following script. But it gives an error.

Fw=1./(cos(w*Hs/Vs_soil));

4 days ago | 2

how to extract objects from an image after filling in the objects in the binary image

Original BW image BW_result=bwareafilt(BW,2); % Get the largest 2 max size objects result=~(BW_result.*BW); % Nand Logical Op...

11 days ago | 0

How can I find a number from a matrix, which is greater than and closest to 1.

Hints: Use logical indexing Get the data those are greater than 1: mat>1 Subtract 1 from all elements of the matrix - mat-1 G...

11 days ago | 0

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can someone help me with this code? there is something wrong and I don't know what it's.

Replace all lines axis ([th0 thl -inf inf]); More figure plot (th0:dth:thl, wBD , th0:dth:thl , alBD/100 ,'lineWidth', 2); ...

11 days ago | 0

how to plot columns of two matrices against each other?

mat1=... mat2=... for i=1:7 plot(mat1(:,i),mat2(:,i)); hold on; end

17 days ago | 0

Matlab Matrix plot from a for-loop

pi_aprox=zeros(1,30); n=6; g2n=zeros(1,30); U_neue=zeros(1,30); g2n(1)=1; for i=1:30 U_neue(i)=n*g2n(i); pi_aprox...

17 days ago | 0

Adding a filter to only white regions of image.

result_image=gray_image.*bw_image; %Now you can apply the filter on result_image

18 days ago | 0

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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 ...

3 months 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 ...

3 months 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...

3 months 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...

5 months 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...

5 months 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...

5 months 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-...

5 months 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...

6 months 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...

6 months 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 ...

6 months 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...

6 months 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 ...

6 months 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...

6 months 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

6 months 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 ...

6 months 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

6 months 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...

6 months ago | 0

sum of array by specific index value

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

6 months 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 ...

6 months 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...

6 months 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...

6 months 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...

8 months ago | 0