TELKOMNIKA Telecommunication, Computing, Electronics and Control
Ananas comosus crown image thresholding and crop counting using a colour space transformation scheme

TELKOMNIKA Telecommunication, Computing, Electronics and Control
Ananas comosus crown image thresholding and crop counting using a colour space transformation scheme

Colour threshold, HSV, Image processing, L*A*B*, Pineapple

The implementation of unmanned aerial vehicle (UAV) technology having image processing capabilities provides an alternative way to observe pineapple crowns captured from aerial images. In the majority of pineapple plantations, an agricultural officer will physically count the crop yield prior to harvesting the Ananas Comosus, also known as pineapple. This process is particularly evident in large plantation areas to accurately identify pineapple numbers. To alleviate this issue, given it is both time-consuming and arduous, automating the process using image processing is suggested. In this study, the possibilities and comparisons between two techniques associated with an image thresholding scheme known as HSV and L*A*B* colour space schemes were implemented. This was followed by determining the threshold by applying an automatic counting (AC) method to count the crop yield. The results of the study found that by applying colour thresholding for segmentation, it improved the low contrast image due to different heights and illumination levels on the acquired colour image. The images that were acquired using a UAV revealed that the best distance for capturing the images was at the height of three (3) metres above ground
level. The results also confirm that the HSV colour space provides a more
efficient approach with an average error increment of 47.6% when compared to the L*A*B*colour space.

Wan Nurazwin Syazwani Rahimi, Muhammad Asraf H, Megat Syahirul Amin Megat Ali

DOI: 10.12928/TELKOMNIKA.v18i5.13895

Universitas Ahmad Dahlan

October 2020

Sri Wahyuni

ISSN: 1693-6930

http://journal.uad.ac.id/index.php/TELKOMNIKA

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TELKOMNIKA Telecommunication, Computing, Electronics and Control