This package contains the MATLAB code which is associated with the following paper:

Tazeem Haider, Muhammad Shahid Farid, Rashid Mahmood, Areeba Ilyas, Muhammad Hassan Khan, Sakeena Tul-Ain Haider, Muhammad Hamid Chaudhry, Mehreen Gul, “A Computer-Vision-Based Approach for Nitrogen Content Estimation in Plant Leaves,” Agriculture 11(8), 766, 2021 https://doi.org/10.3390/agriculture11080766 


Usage of this code is free for research purposes only. 

Please refer to the above publication if you use this code. Thank you.

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The demo file is demo.m  

- Open the file with MATLAB and run it
- The program asks for an input image, choose one from the 'Images' folder.


For any errors /suggestions, send an email to

- Tazeem Haider (tazeem.hairder@pucit.edu.pk) or 
- Dr. Farid (shahid@pucit.edu.pk)

Project Homepage: http://www.di.unito.it/~farid/Research/GCV.html
or http://faculty.pucit.edu.pk/~farid/Research/GCV.html

Last updated: August 13, 2021

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Permission to use, copy, or modify this software and its documentation for educational and research purposes only and without fee is here granted, provided that this copyright notice and the original authors' names appear on all copies and supporting documentation. This program shall not be used, rewritten, or adapted as the basis of a commercial software or hardware product without first obtaining permission of the authors. The authors make no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty.