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Subhadeep Koley


Last seen: Today

MathWorks

179 total contributions since 2019

I am a Software Engineer 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
Why does my code shows three outputs instead of one?
I suspect your dot.jpg is a RGB 3 channel image. When you are extracting the height and width of the image using the size functi...

8 hours ago | 0

Answered
load series of DICOM and convert it to volume to use volume viewer
Refer the example code below, close all; clc; % Load the demo DICOM image [X, map] = dicomread('US-PAL-8-10x-echo.dcm'); ...

9 hours ago | 0

Answered
Contourlet toolbox: Undefined function or variable 'pdfbdec
If you already installed and set up MinGW, then you need to create mex for the C source files before using the toolbox. You can ...

10 hours ago | 0

Answered
display image similarity using pie and bar chart
I have used the ssim function to measure the similarity between to images. ssim metric value lies in the range of [0, 1]. Higher...

10 hours ago | 0

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Answered
background removal from image
Malini, here is a demo script for "...histogram of the person's face not the background..." close all clc img = imread('dklor...

1 day ago | 0

Answered
Saveas function changes behaviour of Subplot in subsequent iterations of a loop
Ruairi, refer the demo example below, close all; clear; clc; for idx = 1:3 % Generating random image for demo img = ...

1 day ago | 0

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Answered
Saved Matrix as Image does not give me the right pixels
Hakan, you are getting a 1200-by-900 image because you're saving the entire figure window in the tif file. If you only need to s...

1 day ago | 0

Answered
Which and where are each of HSI component image(Hue component,Intensity component,saturation component)
The image which you attached does not depict the saturation and intensity images. However, you can create that test image and se...

3 days ago | 0

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Answered
Gaussian filter vs median filter vs wiener filter??Noise tackling performance with image corrupted with salt and pepper noise
Hi, The code (by which you are adding Salt & Pepper noise into the image) is modifying almost all the pixels in the input image...

3 days ago | 0

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Answered
how to i save loop data in a loop?
Access wn_i_all using the indexing variable i. Refer the code below. %% Linear Aeroelastic model of a flexible wing using assum...

3 months ago | 0

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Answered
How to Store this attached rgbimage with a colormap. I tried the following code but could not write the image with colormap.
Your are writing the image in JPEG format and imwrite converts indexed images to RGB before writing data to JPEG files, because ...

3 months ago | 0

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Answered
How to find energy of image ?
If you want to calculate "Energy" as defined from the gray level co-occurrence matrix of the image then the following code might...

3 months ago | 0

Answered
Error: Too many output arguments
Hi, this is because you function crn is not returning anything. If you want to return dR_tow then use the code below. function ...

3 months ago | 1

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Answered
remove unwanted black pixels from binary image
It is difficult to fill the binary image exactly as you want but twaeking the various parameters of the function bwmorph we can ...

3 months ago | 0

Answered
How to save property/variable to .mat file in app designer?
Hi Thomas, use this app.Location = uigetdir; temp = app.Net; save(fullfile(app.Location, 'Saved network'), 'temp'); Hope t...

3 months ago | 0

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Answered
Save location not working
I guess this variable save_var{i} in the 4th last line of your code is returning a cell. Whereas, the function save expects a st...

3 months ago | 0

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Answered
save the output figure as binary image
The below code will save the figure as an image in the worksapce. clc; close all; rectangle('Position',[0 0 539 539], 'FaceCol...

3 months ago | 0

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Answered
can't print pictures
It seems the paths below "C:\Users\panchaopang\Documents\MATLAB\" "C:\Users\panchaopang\Documents\mtex-5.2.5\mtex-5.2.5\geome...

3 months ago | 0

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Answered
Create mask over image
You should not use the variable name input as it shadows a MATLAB built-in function. Use the example code below. close all; clc...

3 months ago | 0

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Answered
Image Saving to Variable in Workspace (NOT imwrite)
Use rescale, you can also specify the lower and upper range of scaling. LLLL = rescale(sp_possible_quadtree);

3 months ago | 0

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Answered
Add 2d plots along a 3d helix
Use this close all; clc; r=93.36; theta=0:pi/50:10*pi; %Trajectory in x-direction x=-r.*cos(theta); %Trajectory in y-direc...

3 months ago | 0

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Answered
Removing a TEX arrow symbol from String
Your code is almost correct but, before erasing you need to check whether the h.String contains \leftarrow or \rightarrow. Use t...

4 months ago | 0

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Answered
threshold images and save as jpeg in loop
Use imwrite instead of save. for i = 1:numel(I) % Obtain red matrix of image filename = fullfile(path, I(i).name); ...

4 months ago | 0

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Answered
How to open a dialog box when saving multiple figures?
Here is an example close all; clc; H = figure; surf(peaks); filter = {'*.fig'}; savefig(H, uiputfile(filter));

4 months ago | 0

Answered
3D scatter with 2 different data sets as different colours
Firstly your PLMS.xlsx file has some NaN values. Moreover, the variable x is identical with xx, y is identical with yy, and so o...

4 months ago | 0

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Answered
Go through the table with a loop and change values
ds = record ("xlsfile", "dataset.csv"); data = dataset2table(ds); [rows, cols] = size(data); newData = data; for i = 1: ro...

4 months ago | 1

Answered
Recommended Toolboxes to recognize and classify images using neural networks
In general you will be needing Image Processing Toolbox, Computer Vision Toolbox, Statistics and Machine Learning Toolbox and De...

4 months ago | 0

Answered
subscript in ylabels of heatmap
Starting in R2019a, heatmaps interpret text using TeX markup instead of displaying the literal characters. Therefore it seems yo...

4 months ago | 0

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Answered
How to filter out NaNs on images ?
See if the below code works clc; close all; % Load data load Background.mat load lat.mat load long.mat load overlay_map.ma...

4 months ago | 0

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Answered
while executing my code there is no error but i did not get any output
You are not getting any output because you are trying to display the vector l_p as an image. It seems you are trying to 2-D calc...

4 months ago | 0

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