Table 4 Pearson’s correlation coefficient (PCC) between image indices and YMD severity.

From: Predicting yellow mosaic disease severity in yardlong bean using visible imaging coupled with machine learning model

S.No

Index

PCC

S.No

Index

PCC

 1.

Red

0.86*

 24.

CIVE

0.09

 2.

Green

0.05

 25.

VEG

−0.03

 3.

Blue

−0.66*

 26.

ExG

−0.11

 4.

RCC

0.87*

 27.

NDI

−0.85*

 5.

GCC

−0.11

 28.

ExR

0.87*

 6.

BCC

−0.70*

 29.

ExGR

−0.57*

 7.

INT

0.05

 30.

MxEG

−0.63*

 8.

GRD

−0.88*

 31.

Grey

0.39*

 9.

GBD

0.64*

 32.

ExB

−0.54*

 10.

BRD

−0.85*

 33.

IPCA

0.65*

 11.

GRRI

−0.79*

 34.

RGBVI

0.39*

 12.

GBRI

0.59*

 35.

BI

0.38*

 13.

RBRI

0.75*

 36.

HI

0.76*

 14.

WI

−0.15

 37.

RI

0.77*

 15.

GRVI

−0.85*

 38.

SI

0.61*

 16.

IKAW

0.75*

 39.

GLAI

−0.83*

 17.

NDTI

0.85*

 40.

CI

0.72*

 18.

GBI

0.64*

 41.

SAT

0.65*

 19.

NGRDI

−0.83*

 42.

OHI

0.24

 20.

NBGDI

−0.49*

 43.

TCVI

0.37*

 21.

NBRDI

−0.80*

 44.

COM1

0.08

 22.

GLI

−0.09

 45.

COM2

0.09

 23.

VARI

−0.83*

   
  1. * represents significant correlation at 5% level of significance.
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