Table 2 Colour analysis and pixel brightness.

From: Linked colour imaging benefits the endoscopic diagnosis of distal gastric diseases

Colour types

R, mean ± SD

G, mean ± SD

B, mean ± SD

RGB model

1

Typical red

203.4 ± 27.4

105.9 ± 18.6

97.3 ± 15.7

Red

2

Red ringed with purple

206.2 ± 22.4

112.4 ± 20.3

130.9 ± 21.5

Purple

212.5 ± 17.6

97.8 ± 18.2

107 ± 18.2

Red

3

Red with yellow in the centre and purple in the periphery

216.8 ± 15.8

140.6 ± 16.1

157.6 ± 14.9

Purple

227.7 ± 7.6

119.5 ± 5.7

124.2 ± 14

Red

227.8 ± 23.7

146.5 ± 40.4

127.2 ± 22.3

Yellow