Prabhan Purwar
Last seen: 1 day ago
MathWorks
136 total contributions since 2019I am an EDG Engineer at Mathworks. My area of interest is works related to Signal processing, Navigation, Robotics, Augmented Reality, Artificial Intelligence, Image Processing and Machine Learning.
Disclaimer: Any advice or opinions are purely my own and not in any way that of MathWorks.
Prabhan Purwar's Badges
Answer 10 questions that were unanswered for more than 30 days
Awarded to Prabhan Purwar on 12 May 2020
20 of your answers have been accepted
Awarded to Prabhan Purwar on 05 Mar 2020
Contribute at least one answer each month for 3 consecutive months
Awarded to Prabhan Purwar on 03 Nov 2019
Provide your first answer ever to someone else's question
Awarded to Prabhan Purwar on 02 Aug 2019
Answered
Mutual shadings with surfl
Hi, Following code illustrates the surfl implementation upon multiple surfaces. 1) First implementation explains surfl implem...
Mutual shadings with surfl
Hi, Following code illustrates the surfl implementation upon multiple surfaces. 1) First implementation explains surfl implem...
16 hours ago | 0
Answered
Error in Simulink: Undefined function or variable 'uniqueOutput'
Hey, The following steps may help in resolving the issue. Under MATLAB Preferences > General settings, change the default path...
Error in Simulink: Undefined function or variable 'uniqueOutput'
Hey, The following steps may help in resolving the issue. Under MATLAB Preferences > General settings, change the default path...
3 days ago | 0
Answered
Error in Simulink: Undefined function or variable 'uniqueOutput'
Hey, The following steps may help in resolving the issue. Under MATLAB Preferences > General settings, change the default path...
Error in Simulink: Undefined function or variable 'uniqueOutput'
Hey, The following steps may help in resolving the issue. Under MATLAB Preferences > General settings, change the default path...
3 days ago | 0
Answered
Check if two hgtransform objects are colliding or overlapping (or find the minimum distance between them)
Hello hgtransform is primarily used for Graphic Object transformations and doesn't support overlaps functionality. If your ob...
Check if two hgtransform objects are colliding or overlapping (or find the minimum distance between them)
Hello hgtransform is primarily used for Graphic Object transformations and doesn't support overlaps functionality. If your ob...
4 days ago | 0
Answered
how to use pplane8 to plot some trajectories on a phase portrait
Hi, pplane8 is one of the several submissions in MATLAB File Exchange on MATLAB Central which is a forum for our product users ...
how to use pplane8 to plot some trajectories on a phase portrait
Hi, pplane8 is one of the several submissions in MATLAB File Exchange on MATLAB Central which is a forum for our product users ...
5 days ago | 0
Answered
How can I prevent matlab from turning on by himself when I turn on the computer?
Hey. That seems more likely to be a windows issue (In case of other operating systems kindly follow the instructions accordingl...
How can I prevent matlab from turning on by himself when I turn on the computer?
Hey. That seems more likely to be a windows issue (In case of other operating systems kindly follow the instructions accordingl...
5 days ago | 0
Answered
I am trying to read one of the channel in mf4 file but it is giving me the error of "Result buffer is too small". The rest of the channel in the channel list i can read the data properly
Hey, This seems to be a known issue with Vehicle Network Toolbox and is fixed in version R2019b Update 5 onwards. The issue a...
I am trying to read one of the channel in mf4 file but it is giving me the error of "Result buffer is too small". The rest of the channel in the channel list i can read the data properly
Hey, This seems to be a known issue with Vehicle Network Toolbox and is fixed in version R2019b Update 5 onwards. The issue a...
5 days ago | 0
Answered
How to compute intersection point for each inequality
Hey, Kindly have a look at the following thread link: https://www.mathworks.com/matlabcentral/answers/297554-how-can-i-plot-th...
How to compute intersection point for each inequality
Hey, Kindly have a look at the following thread link: https://www.mathworks.com/matlabcentral/answers/297554-how-can-i-plot-th...
1 month ago | 0
Answered
How to creat 3D image by stacking multiple 2D image in Matlab?
Hi, Kindly make use of cat function to create a 3d image from 2d images as shown. Only valid for Images that are already reco...
How to creat 3D image by stacking multiple 2D image in Matlab?
Hi, Kindly make use of cat function to create a 3d image from 2d images as shown. Only valid for Images that are already reco...
2 months ago | 1
Answered
Image Conversion and Lab Colourspace range.
Hi, Lab Images are represented in a matrix format of m*n*3, kindly create an empty matrix of the same size to get an empty Imag...
Image Conversion and Lab Colourspace range.
Hi, Lab Images are represented in a matrix format of m*n*3, kindly create an empty matrix of the same size to get an empty Imag...
2 months ago | 0
| accepted
Answered
How to convert 2D ECG image to 1D ECG signal?
Hi, Pan Tompkins algorithm is commonly used to detect QRS complexes in ECG signals through various filtering processes. There i...
How to convert 2D ECG image to 1D ECG signal?
Hi, Pan Tompkins algorithm is commonly used to detect QRS complexes in ECG signals through various filtering processes. There i...
2 months ago | 0
| accepted
Answered
Explanation predictorImportance - Ensemble Learning with Decision Trees
Hi, Our implementation of 'predictorImportance' can be viewed directly within the 'TreeImpl' class. This file is located in yo...
Explanation predictorImportance - Ensemble Learning with Decision Trees
Hi, Our implementation of 'predictorImportance' can be viewed directly within the 'TreeImpl' class. This file is located in yo...
2 months ago | 0
Answered
how to do neuronal netwroks by 2 Matrix
Hi, Neural Networks are used to find a relationship between the input and output arguments in laymen's terms. For more informat...
how to do neuronal netwroks by 2 Matrix
Hi, Neural Networks are used to find a relationship between the input and output arguments in laymen's terms. For more informat...
2 months ago | 0
Answered
Using Matlab in a remote desktop server environment.
Hi, There are no technical restrictions for using MATLAB through remote access software. However, the MATLAB Software License ...
Using Matlab in a remote desktop server environment.
Hi, There are no technical restrictions for using MATLAB through remote access software. However, the MATLAB Software License ...
2 months ago | 0
Answered
The dimensions of the matrix are inconsistent when using the PDEToolbox
Hi, The following error states that there is a dimension mismatch problem while performing the arithmetics. Please make sure th...
The dimensions of the matrix are inconsistent when using the PDEToolbox
Hi, The following error states that there is a dimension mismatch problem while performing the arithmetics. Please make sure th...
2 months ago | 0
Answered
SURFPoints: Is it possible to rotate features of SURFPoints?
Kindly have a look at the following example using SURF features for feature matching https://www.mathworks.com/help/vision/examp...
SURFPoints: Is it possible to rotate features of SURFPoints?
Kindly have a look at the following example using SURF features for feature matching https://www.mathworks.com/help/vision/examp...
2 months ago | 0
Answered
cannot connect arduino by simulink
Hey, There could be multiple reasons why this error might occur. Following are the most probable reasons: It is possible that...
cannot connect arduino by simulink
Hey, There could be multiple reasons why this error might occur. Following are the most probable reasons: It is possible that...
2 months ago | 0
Answered
Adding Figures onto a Video
Hi, Kindly go through the following example illustrated at link. %% EXAMPLE 1 % Place this in a file called "redraw.m": fu...
Adding Figures onto a Video
Hi, Kindly go through the following example illustrated at link. %% EXAMPLE 1 % Place this in a file called "redraw.m": fu...
3 months ago | 0
Answered
Using mex with CUDA
Hi, Check the GPU and CUDA version supported by MATLAB current release from NVIDIA's website. Install CUDA CUDA - Getting St...
Using mex with CUDA
Hi, Check the GPU and CUDA version supported by MATLAB current release from NVIDIA's website. Install CUDA CUDA - Getting St...
3 months ago | 0
Answered
Initialize parameters of MATLAB S-Function from script
Hey, Kindly refer to the following solution links: https://www.mathworks.com/matlabcentral/answers/652-how-do-i-set-the-initia...
Initialize parameters of MATLAB S-Function from script
Hey, Kindly refer to the following solution links: https://www.mathworks.com/matlabcentral/answers/652-how-do-i-set-the-initia...
3 months ago | 0
Answered
How I can pass value array that I already store to another function?
Hi, Could you explain more what are you trying to do with handles.ImgData3 = A; and GUI. You can pass the array as an output a...
How I can pass value array that I already store to another function?
Hi, Could you explain more what are you trying to do with handles.ImgData3 = A; and GUI. You can pass the array as an output a...
3 months ago | 0
Answered
Take measurement of a concrete crack from picture?
Hey, Following major steps will be required to detect the width and height of the concrete crack: Segmentation Finding connec...
Take measurement of a concrete crack from picture?
Hey, Following major steps will be required to detect the width and height of the concrete crack: Segmentation Finding connec...
3 months ago | 1
| accepted
Answered
Error in step size/solver Ode15s
Hi, This problem occurs when an integrator is present in the model. Open Configuration Parameter, set the diagnostic "Inf or N...
Error in step size/solver Ode15s
Hi, This problem occurs when an integrator is present in the model. Open Configuration Parameter, set the diagnostic "Inf or N...
3 months ago | 0
| accepted
Answered
Translation Matrix For Image Processing Confusion
Hi, These two representations of Translational Transformation are pretty the same and just vary in the way matrix multiplicatio...
Translation Matrix For Image Processing Confusion
Hi, These two representations of Translational Transformation are pretty the same and just vary in the way matrix multiplicatio...
3 months ago | 0
Answered
2D 'Surface Plot' from 3D geometry
Hi, In order to draw slices from volumetric data try making use of slice function in MATLAB. Heat Map can be displayed using He...
2D 'Surface Plot' from 3D geometry
Hi, In order to draw slices from volumetric data try making use of slice function in MATLAB. Heat Map can be displayed using He...
3 months ago | 0
Answered
How Matlab Antenna Toolbox calculate coupling?
Hi, We use Method of Moments (MoM) for calculating Coupling. Thanks
How Matlab Antenna Toolbox calculate coupling?
Hi, We use Method of Moments (MoM) for calculating Coupling. Thanks
3 months ago | 0
Answered
classifyVideo function does not work on Mac
Hi, You can recreate the functionality by writing your own function which takes as input the network obj and performs the follo...
classifyVideo function does not work on Mac
Hi, You can recreate the functionality by writing your own function which takes as input the network obj and performs the follo...
3 months ago | 0
Answered
Can't find the file path for my categories in imageDatastore
Hi, Kindly provide the required information for better assistance Please refer to the following links: https://www.mathworks....
Can't find the file path for my categories in imageDatastore
Hi, Kindly provide the required information for better assistance Please refer to the following links: https://www.mathworks....
3 months ago | 0
Answered
Simulation of optical light and APD in matlab
Hi, If you know the equivalent circuit, one can rebuild the APD behavior, using basic Simscape block. If an APD can be represe...
Simulation of optical light and APD in matlab
Hi, If you know the equivalent circuit, one can rebuild the APD behavior, using basic Simscape block. If an APD can be represe...
3 months ago | 0
Answered
McCabe-Thiele calculation problem
Hi, Following error apparently occurs when variables are not being assigned a value, so they act as a symbol. Conditions upon s...
McCabe-Thiele calculation problem
Hi, Following error apparently occurs when variables are not being assigned a value, so they act as a symbol. Conditions upon s...
3 months ago | 0
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