Skip to main content

Table 14 Image augmentations and their parameters

From: DECIMER 1.0: deep learning for chemical image recognition using transformers

Image augmentations

Parameters (imgaug)

Gaussian blur

0–1.8

Average blur

k = 0–3

Additive Gaussian noise

Scale = (0, 0.1 * 255)

Salt and pepper

0–0.05

Salt

0–0.05

Pepper

0–0.05

Coarse dropout

0–0.01, size percent = 0.9

Gamma contrast

0.5–2.0

Sharpen

Alpha = (0.0, 1.0), lightness = 1.0

Enhance brightness

Factor = (0.95, 1.5)