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Subhadeep Koley


MathWorks

92 total contributions since 2019

I am an Associate in the Engineering Development Group here at The MathWorks.

My areas of interest are Image Processing, Pattern Recognition, Computer Vision & Graphics and plotting.

DISCLAIMER: Any advice or opinions here are my own and in no way reflect that of The MathWorks.

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Answered
Error using the immse function
Curtis, your original image 'PandaOriginal(1).bmp' is of type uint8. Use the function im2double() to convert your image to doubl...

4 Tage ago | 0

Answered
Column Headers from Imported Data
Hi, refer the example below. filename = fullfile(matlabroot,'examples','matlab','myCsvTable.dat'); n = 2; % Number of rows to ...

5 Tage ago | 0

Answered
Fit image gradient into exponential distribution function
Hi, Refer the code below which fits n degree polynomial to the histogram data. You can tweak the ‘n’ value to find the best fit....

5 Tage ago | 0

Answered
Import Data - Generate Script/Function Error
Hi, it is giving no such errors when I am trying to do the same with your Com_SampleProjects.xlsx file. Can I know which MATLAB ...

5 Tage ago | 0

Answered
How to display output in a loop?
Hi, you can use the function disp() to display the variables in the command window. Also, I have made some changes in your code....

5 Tage ago | 0

Answered
How can I remove or blank labeled pixels in an image with K-means Clustering to create a new image?
Hi, use rescale() and imbinarize() to segment out your Region Of Interest (ROI) except the background. % Read your image here ...

6 Tage ago | 0

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Answered
Setting marker and colour in gscatter by the categorical group string
Hi, you can refer to the example code below, which plots the height and weight of various animals grouped by species and country...

6 Tage ago | 0

Answered
Spectrogram function vs. interactive differences
Hi, in this case you can (Starting from MATLAB R2017b) directly generate the script which creates the spectrogram inside the Sig...

6 Tage ago | 0

Answered
how to put a task that u repeat in some functions of a GUI, with one function
I assume you are using MATLAB App Designer. You can define helper functions, which can be used by other functions inside or outs...

6 Tage ago | 0

Answered
How to do 3D Histogram Plot with self defined colors according to certain data series?
I assume that you already have one contour plot with a particular colormap and now you want to apply the same colormap to your 3...

7 Tage ago | 1

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Answered
Could someone please help me with my code I have spent a lot of time working on it and I still didn4t figure out what is the problem
As rightly pointed by Stephen Cobeldick, the function input arguments are inconsistent. I have made some changes in the script a...

7 Tage ago | 0

Answered
Auto generated scatter plot takes four argument instead of two
Syed, Yes, it is true that in MATLAB R2014b the auto generated code for a scatter plot contains two extra input arguments. But...

7 Tage ago | 0

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Answered
Plotting lines between X,Y coordinates after filtering by calculated distance
Hi, your code is almost correct. However, plotting like this is very inefficient, which probably is the reason why your computer...

7 Tage ago | 0

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Answered
Load figures from .fig files and copy into subplots including legends and axis labels
Robin, refer to the below demo code which loads 2 figures from .fig files and plot them into a new subplot along with legends an...

7 Tage ago | 0

Answered
Add changing title to superimposed images while writing GIF
Hi, it is difficult to provide exact solution without your variable BBIO and BIO. But I have made some changes in your code to m...

7 Tage ago | 0

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Answered
how to hide the title bar of TabGroup in appdesigner???
Hi, it seems not possible to hide only the title bar of a TabGroup. As the title bar is needed to navigate between various tabs ...

7 Tage ago | 0

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Answered
read result.txt files with same file name is subfolders
Hi, you have defined ‘content’as a single variable, therefore it is holding only the last value of the loop. If you want to want...

8 Tage ago | 0

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Answered
Changing the points to pixels rendering ratio
You can first tweak your figure in the default large rendering then only use the below code to resize and save your plot to any ...

8 Tage ago | 0

Answered
Plot wont show line
Hi, it is difficult to provide an exact solution without your original data. However, when I executed your code with demo data, ...

8 Tage ago | 0

Answered
How to display units in table in a GUI?
Hi Jouni, It seems not possible to add a second row in the table header in App Designer. Also, when you create a table in app d...

8 Tage ago | 0

Answered
how to import plot from matlab app
According to the documentation, in the Regression Learner app you can export your plots to MATLAB figures. You can then copy, sa...

8 Tage ago | 0

Answered
read videos in Matlab
Hi, your code is almost correct only you have add some pause() between every frame otherwise you won’t be able to see all the fr...

8 Tage ago | 0

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Answered
Is there a way to disable focus on a calling app while designing multi-window apps using app designer?
Hi, there is a work around by setting the visibility of the calling UIFigure to ‘off’ at the ButtonPushed call back. app.UIFig...

8 Tage ago | 0

Answered
How to recover image from IFFT after removing high frequency descriptors?
Hi, it is difficult to provide an exact solution without your image but below is an example of removing high frequency descripto...

9 Tage ago | 0

Answered
No line while plotting using "for" command
Hi, using hold on you can plot all the points in the figure. mu = 0.0000181206; rho = 1.225; vc= 15; vstall=5; vmax=1; g=9.8...

9 Tage ago | 0

Answered
Converting large stack of 2D images into 3D image: how to improve performance?
Hi, instead of for loop you can use parfor loop for better performance. Refer to the code below. [file,path]=uigetfile('*.*','m...

9 Tage ago | 0

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Answered
Playing videos in Matlab
Hi, your code is almost correct only you have add some pause() between every frame otherwise you won’t be able to see all the fr...

9 Tage ago | 0

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Answered
Downsizing a Data Set for Plots
Hi, You can use rescale() function to scale down / up your data to any given range. Refer to the code below. It scales a demo da...

9 Tage ago | 0

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Answered
How to connect two plot line together?
Hi, you can use the code below to connect the red line with the blue line directly without adding any third line. % Demo figure...

9 Tage ago | 0

Answered
Cross-correlation plots and find the median
I assume that you are trying to find the median value for each of the cross-correlation vector and plot them along with the cros...

9 Tage ago | 0

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