Table 1.

FID as a measure of minimum valid perturbations across classes to generate healthy counterfactuals.

Image Set 1	ImageSet 2	Frechet Inception Distance
Lung Opacity	Generated Healthy	27.8
Lung Opacity	Real Healthy	46.9
	Relative Absolute Difference	19.1
Viral Pneumonia	Generated Healthy	37.63
Viral Pneumonia	Real Healthy	97.6
	Relative Absolute Difference	59.97
COVID 19	Generated Healthy	32.2
COVID 19	Real Healthy	38.2
	Relative Absolute Difference	6.0