Pratham Shah

Lakehead University

Con actividad desde 2021

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EC Graduate and MATLAB Lover

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Changing color in matlab
I=imread("xyz_converted.png"); I(:,:,1)=I(:,:,2); [m,n,~]=size(I); I(:,:,2)=zeros(m,n); imshow(I)

alrededor de 1 año hace | 0

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How to measure the performance (precision and recall ) for following model and does it need to have groundTruth?
Yes, You need to have a ground truth in order to obtain accuracy, precision and recall. If you have ground truth you can calcula...

alrededor de 1 año hace | 0

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U-Net for medical image segmentation
Hi! If you have prior knowledge of neural networks you can use encoderDecoderNetwork function to build the required U-Net struc...

más de 1 año hace | 0

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I have a code to length of a shape but I am not getting the correct output accordingly.
Hello Surabhi! Your code is working properly and giving correct output for attached image. As far as unit is concerned, that de...

más de 1 año hace | 0

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How to plot a continuous graph as shown in the below graph?
After analyzing your code, I think you are on totally wrong path. There is no need of using 'for' or 'hold on' to plot point in ...

más de 1 año hace | 1

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how can i plot two different figures from two scripts side by side??? (i have two seperated codes)
Hi! You can create seperate MATLAB functions for both of the codes and then create new script which calls both the fucntions an...

más de 1 año hace | 0

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Image Segmentation Bounding Box
Hi! As @Image Analyst rightly mentioned, don't use inverted image for bounding box. Use Image | BW. To get the bounding box ar...

más de 1 año hace | 0

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About the position of transmitter site in raytrace
Hi, You can change antenna hight while specifying your transmission site. tx = txsite("Name","Satellite transmitter", ... ...

más de 1 año hace | 0

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I know there are commands to use when finding the max values within an array, how would I do it through data from a graph?
Why don't you use Min/Max function on the variable you are plotting. That will give you min/max value along with the correspondi...

más de 1 año hace | 0

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How can I partition the data to training (70%) testing (20%) & validation (10%) such that mean & SD of each subsets same?
Hello Srinivas! You haven't mentioned with what kind of database you are working with. However if the data is related to image,...

más de 1 año hace | 0

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OFDM probability of error vs SNR
Hi Jose! No it should not take long time to simulate unless the video you are using is large. However if you want to plot BER ...

más de 1 año hace | 0

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How to label a picture according to the color of pixels
Hi Muchen! You can use 'categorical' function to convert array into lable form.

más de 1 año hace | 0

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Train a deep learning model with filename in single csv file.
I want to train U-Net model for an application. Images are having multiple bands saved in different .tif file. To train DL model...

más de 1 año hace | 1 respuesta | 0

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Edge detection at a certain degree without using specific filter
This is the example to detect diagonal images. If you want to detect edges of soecific angle you may make your own filter and us...

más de 1 año hace | 0

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Is it possible or correct to get psnr for the decompressed image greater than 90?
No, you can not get PSNR 90dB. If your image is 8 bit, maximum value of PSNR should be around 64dB if your algorithm is performi...

más de 1 año hace | 0

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while truncating the original matrix size changes and error shows index in position 1 exceeds array bound
Mention the command that you are using to extract it. You can try arr(799:end,:);

más de 1 año hace | 0

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How do I delete an old version of MATLAB if I cannot open it?
When you install a new version of MATLAB, whole new folder is created in 'Program Files' if you are using windows system; so the...

más de 1 año hace | 0

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Unrecognized function or variable 'invertResidualLayer'
Hi, I have struggled with this issue a lot and I know the reason behind it. The problem is while you are calling 'net.Layers(1...

más de 1 año hace | 0

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What is the default loss function used in the U-Net implementation in MATLAB for semantic segmentation tasks?
If you are using the unetLayers function, default loss function will be "Cross-Entropy". You can check that on the documentation...

más de 1 año hace | 1

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Pratham Shah

Lakehead University

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