Get conversion factor for pixels to mm for roi measurements

Used internally

px_to_mm(x, opticalSetting)

Arguments

x

an aidmea data frame (standard) to be converted into mm from pixels

opticalSetting

the VPR setting determining the field of view and conversion factor between mm and pixels

Details

converts pixels to mm using conversion factor specific to optical setting

Options for opticalSetting are 'S0', 'S1', 'S2', or 'S3'