Table 6.

Operations involved in the MoCo pre-training.

Operation	Parameters
Horizontal and vertical flipping	–
Random rotations	90, 180, 270 degress
Hue saturation value	Hue_limit (−20, 20), Saturation_limit (−30, 20), Value limit (−20, 20)
RGBShift	R_shift (−20,10), G_shift (−20, 10), B_shift (−20, 10),
CLAHE	Clip_limit = 1.0, tile_grid_size = (4,4)
Random brightness	Limit = 0.2
Random contrast	Limit = 0.2
Gaussian noise	Limit (10, 50), mean = 0
Elastic transformation	Alpha = 1, sigma = 30, alpha_affine = 30
Grid distorsion	Num_steps = 3, distort limit = 0.3
GlassBlur	Sigma = 0.1, max_delta = 1, iterations = 1
Optical distorsion	distort limit = 0.3, shift_limit = 0.3