10.5281/zenodo.1107585
Siti Khairunniza-Bejo
Yusnida Yusoff
Nik Salwani Nik Yusoff
Idris Abu Seman
Mohamad Izzuddin Anuar
Identification Of Healthy And Bsr-Infected Oil Palm Trees Using Color Indices
Zenodo
2015
Oil palm
image processing
disease
leaves.
2015-07-01
en
Journal article
https://zenodo.org/record/1107585
10.5281/zenodo.1107584
10001908
Creative Commons Attribution 4.0
Open Access
Most of the oil palm plantations have been threatened
by Basal Stem Rot (BSR) disease which causes serious economic
impact. This study was conducted to identify the healthy and BSRinfected
oil palm tree using thirteen color indices. Multispectral and
thermal camera was used to capture 216 images of the leaves taken
from frond number 1, 9 and 17. Indices of normalized difference
vegetation index (NDVI), red (R), green (G), blue (B), near infrared
(NIR), green – blue (GB), green/blue (G/B), green – red (GR),
green/red (G/R), hue (H), saturation (S), intensity (I) and thermal
index (T) were used. From this study, it can be concluded that G
index taken from frond number 9 is the best index to differentiate
between the healthy and BSR-infected oil palm trees. It not only gave
high value of correlation coefficient (R=-0.962), but also high value
of separation between healthy and BSR-infected oil palm tree.
Furthermore, power and S model developed using G index gave the
highest R2 value which is 0.985.
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