# Mahesh Taparia

### MathWorks

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I am an Engineer in the Engineering Development Group at Mathworks, Hyderabad.

My area of interest are signal processing, machine learning, computer vision and deep learning.

DISCLAIMER: Any advice here are my own and no way reflect that of the Mathworks.

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**Feeds**

How to plot network performance?

Hi You can select the 'Plots' name value pair of trainingOptions function to 'training-progress' and then train the network. Yo...

ungefär 2 år ago | 0

how can i input two inputs to the deep network, one from the imageinputlayer and the other from featureinputlayer

Hi You can refer to this example which shows how to combine image and features and then pass it to a CNN. It create a dlnet obj...

ungefär 2 år ago | 0

How do I analyze color uniformity of my image in Matlab?

Hi With respect to your image, there are possibly 2 different colors. You can analyze the pixel values using histogram of image...

ungefär 2 år ago | 0

stability test for complex valued transfer function

Hi You can use the 'isstable' function to check the stability of a transfer function. For example, in your case, consider the ...

ungefär 2 år ago | 0

Too many input arguments Error in helperCropPointCloudsAndMergeLabels function in matlab example

Hi It seems you are using a helper function given in this section and you are getting this error because more number of inputs ...

ungefär 2 år ago | 0

What toolbox includes Ray tracing propagation model?

Hi To know the toolbox for any MATLAB function/ example, usually it is given in the top left panel of the ducumentaion page. In...

ungefär 2 år ago | 1

| accepted

Color the the image

Hi This problem can be solve by adding the image of both the letter 'U' and 'H' and doing some color changing. At first, split ...

ungefär 2 år ago | 0

skip connected deep neural network

Hello You can use connectLayers function to make skip connection in network. You can refer this documentation for an example. ...

mer än 2 år ago | 1

which is the best filter for removal of Gaussian noise between sobel and LOG filters

Hi Sobel and LoG filters are used to find the edges in the image. To remove the Guassian noise, you can use the averaging filte...

mer än 2 år ago | 0

| accepted

How to retrain a CNN/LSTM using new recorded data?

Hello, You can refer this documentation of training from pretrained weights. You can save the trained network from the old data...

mer än 2 år ago | 0

| accepted

Save intermediate model in matlab while training a deep learning model and resume training from that stage later

Hi You can set the checkpoint path in trainingOptions as suggested in the above answer. The trained weights will be saved into ...

mer än 2 år ago | 0

| accepted

Semantic segmentation with overlapping patches

Hi In this case, you can use 'blockproc' function. Create the image block and pass it to network. For more information, you can...

mer än 2 år ago | 0

| accepted

Importing CelebA dataset (deep learning) into MATLAB for use with YOLO

Hi The training data can have 2 formats either tabular or in the form of datastore as given here. In your case, create a table ...

mer än 2 år ago | 0

How can I obtain the functions parameterStructToVector and parameterVectorToStruct?

Hi You can get the function in the example folder. The example path is given in the top right side of this documentation page. ...

mer än 2 år ago | 0

| accepted

Is it possible to view multiple videos at the same time (and being able to process it with custom code)?

Hi You can combine the frames of both the videos and visulaize them in loop using imshow function. For example, consider the b...

mer än 2 år ago | 0

| accepted

How can I design a correlator to detect the character ‘G’ from the google image?

Hi The letter 'G' in Google appear to be bigger than the rest of the letter. So 'G' can be selected based on its size. You can ...

mer än 2 år ago | 0

error which occurred while execuiting matlab file

Hello Lakshmi, As Walter mentioned, get_Rx_position is not a MATLAB inbuilt function. If it is user defined function, then make...

mer än 2 år ago | 0

Create custom people detector for automated labelling on own specific dataset

Hi In order to label the objects, you can use image labeler app with custom algorithm option.The custom algorithm can be YOLOv3...

mer än 2 år ago | 0

Adapting 1D CNN

Hi Try to change the maxpooling operation,like make it with small window like [1 2] or you can remove max pooling operation as ...

nästan 3 år ago | 0

| accepted

Error custom training loop: Value to differentiate must be a traced dlarray scalar.

Hi You are converting the dlarray data to double and then again converting to dlarray to perform automatic differentiation. T...

nästan 3 år ago | 0

| accepted

plot and fit surface

Hi The syntax and code which you have used is correct. The above code will fit a 2nd degree polynomial to the given data points...

nästan 3 år ago | 0

| accepted

Determine and plot the response of an accumulator for an input sequence 𝑥[𝑛] = 𝑢[𝑛] + 2𝑢[𝑛 − 1] − 3𝑢[𝑛 − 3]. Consider the system is at rest. use the function filter

Hi You can refer this example to plot the response using filter function.

nästan 3 år ago | 0

How to plot frequency response at discrete time?

Hi You can use freqz function to plot frequency response at discrete time. You can refer this example to plot the response of y...

nästan 3 år ago | 0

Check for incorrect argument data type or missing argument in call to function 'diff'.

Hi It seems you are finding derivative of a function of x. If you don't have the value of x, then you can go by symbolic approa...

nästan 3 år ago | 0

How to develop a CNN classification with meta, train and test data

Hi You can use pretrained network already exist in DL toolbox and finetune the model on your data. You can refer this documenta...

nästan 3 år ago | 0

Bandpass filter of set of Data

Hi You can use 'bandpass' function to apply a bandpass filter to your data. For more information you can refer its documentatio...

nästan 3 år ago | 0

Apply to Softmax row

Hi It seems you want to perform the softmax function as per your data/feature dimension. In this case you can create a custom l...

nästan 3 år ago | 1

| accepted

Classification Algorithm Enquiry.

Hi You can look at this documentation and also check this example of the documentation of multiclass SVM. Hope it will help!

nästan 3 år ago | 0

| accepted

How to classify images depending on the shape of each image's object ?

Hi There is already an existing answer similar to this problem. You can refer this link for that.

ungefär 3 år ago | 1

Image segmentation for area

Hi You can 1st segment the plants from the image. To do this, green part is easily segmented by applying the suitable threshold...

ungefär 3 år ago | 0