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

My interest lies in the field of Image Processing, Computer Vision and Deep Learning.

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

Answered

how to change the color output of segmentation?

For "imshowpair" function, inputs should be grayscale/ binary/ truecolor images and for "jaccard" function, inputs sholud be bin...

how to change the color output of segmentation?

For "imshowpair" function, inputs should be grayscale/ binary/ truecolor images and for "jaccard" function, inputs sholud be bin...

3 days ago | 0

Answered

Error using Semantic Segmentation Using Deep Learning

I have tried to replicate that same example (mentioned in the provided link) on MATLAB R2019b and it sucessfully ran. On MATLAB...

Error using Semantic Segmentation Using Deep Learning

I have tried to replicate that same example (mentioned in the provided link) on MATLAB R2019b and it sucessfully ran. On MATLAB...

3 days ago | 0

Answered

image labeler_Label Pixels Image

You can use "object DetectorTrainingData" function to create table form the labelled ground truth objects which are returned fro...

image labeler_Label Pixels Image

You can use "object DetectorTrainingData" function to create table form the labelled ground truth objects which are returned fro...

5 days ago | 0

Answered

How to TRAIN further a previously trained agent?

In this case, you can resume your training with the previous experience buffer as a starting point. You have to set the 'SaveE...

How to TRAIN further a previously trained agent?

In this case, you can resume your training with the previous experience buffer as a starting point. You have to set the 'SaveE...

5 days ago | 0

Answered

How to do the sum for 2 gradient objects in the deep learning toolbox?

As in this case, 'gradients1.Value' and 'gradients2.Value' both are cell arrays and each one contains another cell arrays as ele...

How to do the sum for 2 gradient objects in the deep learning toolbox?

As in this case, 'gradients1.Value' and 'gradients2.Value' both are cell arrays and each one contains another cell arrays as ele...

6 days ago | 0

Answered

What is the error histogram in neural network matlab?

Error histogram is the histogram of the errors between target values and predicted values after training a feedforward neural ne...

What is the error histogram in neural network matlab?

Error histogram is the histogram of the errors between target values and predicted values after training a feedforward neural ne...

6 days ago | 0

Answered

Is there any way to use "activations" function for a dlnetwork ?

The "activations" function supports only SeriesNetwork object or DAGNetwork object, but doesn't support 'dlnetwork' object. Ho...

Is there any way to use "activations" function for a dlnetwork ?

The "activations" function supports only SeriesNetwork object or DAGNetwork object, but doesn't support 'dlnetwork' object. Ho...

6 days ago | 0

| accepted

Answered

How to create and plot a Gaussian Dist with specified parameters?

You can follow this example to create and plot a Gaussian distribution. a = -100; b = 100; x = a + (b-a) * rand(1, 500); mu =...

How to create and plot a Gaussian Dist with specified parameters?

You can follow this example to create and plot a Gaussian distribution. a = -100; b = 100; x = a + (b-a) * rand(1, 500); mu =...

6 days ago | 0

Answered

question about vector multiplication

The first two options of your question are performing matrix multiplication of the vectors A and B by considering them nX1 and 1...

question about vector multiplication

The first two options of your question are performing matrix multiplication of the vectors A and B by considering them nX1 and 1...

6 days ago | 0

Answered

dlnetwork with two inputs

Currently, to build 'dlnetwork' object, network must contain only one input layer. Hence, in current framework you cannot conver...

dlnetwork with two inputs

Currently, to build 'dlnetwork' object, network must contain only one input layer. Hence, in current framework you cannot conver...

6 days ago | 0

Answered

Average NDVI from RGB image

You can follow this example to get an idea how NDVI values are computed. https://www.mathworks.com/help/images/finding-vegetati...

Average NDVI from RGB image

You can follow this example to get an idea how NDVI values are computed. https://www.mathworks.com/help/images/finding-vegetati...

7 days ago | 0

Answered

Lat/Lon to Row/Colmn

There are two functions which you can use. If you have the GeoTIFF file, then “geotiffread”helps to read a georeferenced graysc...

Lat/Lon to Row/Colmn

There are two functions which you can use. If you have the GeoTIFF file, then “geotiffread”helps to read a georeferenced graysc...

7 days ago | 0

Answered

how to change these parts to 0??

Assuming the dct image is ‘dct_img’ and the indexes of the sections are as shown here in this figure, you can create four inve...

how to change these parts to 0??

Assuming the dct image is ‘dct_img’ and the indexes of the sections are as shown here in this figure, you can create four inve...

7 days ago | 0

Answered

How to keep fix the CNN accuracy result in MATLAB?

As the training progresses, for each iteration, weights of the network got updated. Hence, after some iterations of training, wh...

How to keep fix the CNN accuracy result in MATLAB?

As the training progresses, for each iteration, weights of the network got updated. Hence, after some iterations of training, wh...

3 months ago | 0

Answered

Difference between gTruth and pixellabeldata images

‘ImagePixelCount’ represents the total number of pixels present in the image. ‘PixelCount’ represents the number of pixels corr...

Difference between gTruth and pixellabeldata images

‘ImagePixelCount’ represents the total number of pixels present in the image. ‘PixelCount’ represents the number of pixels corr...

3 months ago | 0

| accepted

Answered

How to do autocorrelation with audio signal and parameters

To perform correlation between two signals, you can use ‘xcorr’ function. In ‘xcorr’, if you provide only one input, output wil...

How to do autocorrelation with audio signal and parameters

To perform correlation between two signals, you can use ‘xcorr’ function. In ‘xcorr’, if you provide only one input, output wil...

3 months ago | 0

| accepted

Answered

Error in image size U-Net

In U-Net, generally the patch sizes are determined in accordance with the subsequent max-pool layers, so that the down-sampling ...

Error in image size U-Net

In U-Net, generally the patch sizes are determined in accordance with the subsequent max-pool layers, so that the down-sampling ...

3 months ago | 0

Answered

Simout does not produce the timeseries data

To export data from Simulink to MATLAB workspace, you can use ‘To Workspace’ block from ‘Sinks’ in ‘Simulink’ library and set th...

Simout does not produce the timeseries data

To export data from Simulink to MATLAB workspace, you can use ‘To Workspace’ block from ‘Sinks’ in ‘Simulink’ library and set th...

3 months ago | 0

| accepted

Answered

Gaussian pyramid vs imresize

In ‘imresize’ function, by default bicubic interpolation is used to resize an image. However, there is also option to specify th...

Gaussian pyramid vs imresize

In ‘imresize’ function, by default bicubic interpolation is used to resize an image. However, there is also option to specify th...

3 months ago | 0

Answered

Boost/Enhance white pixels

First, you can binarize the image and then use ‘bwmorph’ function to thicken the white lines present in the image. Format of us...

Boost/Enhance white pixels

First, you can binarize the image and then use ‘bwmorph’ function to thicken the white lines present in the image. Format of us...

3 months ago | 1

| accepted

Answered

Image reading and processing

After reading the image properly, you can separate the channels using this code segment. a=imread('test.jpg'); a_red=a(:,:,...

Image reading and processing

After reading the image properly, you can separate the channels using this code segment. a=imread('test.jpg'); a_red=a(:,:,...

3 months ago | 0

| accepted

Answered

Table for neural network regression

To retrieve the data from the text file, you can use “readtable” function in this way: tbl=readtable('test.txt','Format','%s%f'...

Table for neural network regression

To retrieve the data from the text file, you can use “readtable” function in this way: tbl=readtable('test.txt','Format','%s%f'...

4 months ago | 0

| accepted

Answered

Invalid Transformation in trainNetwork (on pixelLabelImageDatastore)

The error you are getting is coming from the use of “imresize” function over pixel-label image datastore object i.e. “pximds”. T...

Invalid Transformation in trainNetwork (on pixelLabelImageDatastore)

The error you are getting is coming from the use of “imresize” function over pixel-label image datastore object i.e. “pximds”. T...

4 months ago | 0

Answered

Invalid training data. X and Y must have the same number of observations for training a network with MFCC coefficients..

To use the “XTrain”and “YTrain” in “trainNetwork” function, you should reshape those properly, otherwise it will throw this type...

Invalid training data. X and Y must have the same number of observations for training a network with MFCC coefficients..

To use the “XTrain”and “YTrain” in “trainNetwork” function, you should reshape those properly, otherwise it will throw this type...

4 months ago | 0

Answered

How can i get frames of a signal using peaks as reference?

“findpeaks” function returns the values of the peaks as well as their locations. Hence, you can store both information in two ar...

How can i get frames of a signal using peaks as reference?

“findpeaks” function returns the values of the peaks as well as their locations. Hence, you can store both information in two ar...

4 months ago | 0

| accepted

Answered

How to find MSE for different number of iterations when i have an audio signal

To calculate Mean Squared Error (MSE) between the two signals, first you have to calculate the difference between the two signal...

How to find MSE for different number of iterations when i have an audio signal

To calculate Mean Squared Error (MSE) between the two signals, first you have to calculate the difference between the two signal...

4 months ago | 0

Answered

Why is jordan() much slower than eig()? Both in symbolic forms

Difference between speed of two functions came from the difference between the algorithms used in the implementation of the two ...

Why is jordan() much slower than eig()? Both in symbolic forms

Difference between speed of two functions came from the difference between the algorithms used in the implementation of the two ...

4 months ago | 1

| accepted

Answered

how to drive this equations in simulink ? can anyone help me?

To model differential equations in Simulink, you should follow these steps: First, make a list of all the constant valued varia...

how to drive this equations in simulink ? can anyone help me?

To model differential equations in Simulink, you should follow these steps: First, make a list of all the constant valued varia...

4 months ago | 2

| accepted

Answered

Error using plot Vectors must be the same length.

In your code, “Acceleration” and “ds_mapping”are row vectors whether “t_sec” is a column vector. Hence, you should first conve...

Error using plot Vectors must be the same length.

In your code, “Acceleration” and “ds_mapping”are row vectors whether “t_sec” is a column vector. Hence, you should first conve...

4 months ago | 0

Answered

How to remove the lines in the image?

After inspecting the script that you are using, it seems that data stored in the “input_data.txt” is stored in channels first fo...

How to remove the lines in the image?

After inspecting the script that you are using, it seems that data stored in the “input_data.txt” is stored in channels first fo...

4 months ago | 1

| accepted