How to calculate Histogram of Gradients for image?

More Naveenkumar Mahamkali's questions See All

Can we use depth sensors (e.g. kinect sensor) for surveillance?

In general, RGB cameras are using for surveillance purpose. With the advancements in sensor technology, cost effective depth sensor like Kinect are available in the market. Can we use them for...

31 December 2018 5,170 2 View

In cross subject test protocol for action recognition task, training and testing sets only considered. what about validation set?

In literature for action recognition task, cross subject test and cross view test are two major protocols for evaluating efficacy of the methods. In cross subject test protocol, half of the...

07 August 2018 9,907 0 View

What is the difference between the Feature Descriptor and Feature Vector in image processing?

Explanation of Feature Descriptor and Feature Vector with examples.

31 December 2017 5,154 1 View

Which software is good for converting jpg to eps for writing journal paper in latex?

Latex will prefer images in eps format. I have created images in jpg format. I want to convert images from jpg to eps.

10 November 2017 2,299 11 View

For (x, y, w, h) in faces: cv2.rectangle(image, (x, y), (x+w, y+h), (0,0, 255), 2) ; what would be the values of (x, y, w, h) if face is not detected?

Programming related (Python)

08 September 2016 3,396 0 View

What is the use of 2D Gaussian smoothing filter?

2D Gaussian smoothing filter applications

06 July 2016 8,994 1 View

What is meaning of high frequency and low frequency in image processing?

high frequency and low frequency definitions with explanations

06 July 2016 7,957 2 View

What is difference between Motion History Image and Motion Energy Image?

MHI and MEI differences and Matlab code for MHI land MEI.

06 July 2016 7,122 3 View

No title

Matlab code for viewing HoG descriptor.

06 July 2016 687 2 View

What is symmetrical moving avg filter?

Explanation and Matlab code for symmetrical moving Avg filter

06 July 2016 4,431 0 View

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Image Processing and classification using keras/Tensorflow?

Do you have some recommendations approaches on Image processing and classification of plant diseases using TensorFlow/Keras?

02 March 2021 1,493 4 View

Which SAR dataset to use for generating coherency matrix and performing target decomposition (Description) ?

Working on chandrayaan-2 DFSAR data, there are three datasets available: 1) Slant range image data product: The slant range complex image file. Each pixel is represented by two 4-byte floating...

02 March 2021 8,481 3 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

How to define tie constraint between rigid body and another part in dynamic explicit model of Abaqus?

Hi dear researchers I connected a rigid body into the part of my structure by tie constraint and then I added displacement to rigid body, in static general step every thing is fine and these two...

28 February 2021 3,442 2 View

Alireza Dehghani

Do you want to implement HoG extraction from scratch or you want to use it in your application? What language are you going to use?

There are optimized implementation of HoG in Matlab and OpenCV.

Mohamed Atibi

You can use this link.

http://www.mathworks.com/help/vision/ref/extracthogfeatures.html?requestedDomain=www.mathworks.com