MeasuredPSF holds an array of measured data with information about the dimensions of the measurement. This allows you to make conversions to other representations of a transfer function such as an OTF and to use interpolations to sample the PSF at arbitrary locations not included in the initial measurement (in general to use the measurements similarly to how one could use a model). This can be useful for using the same PSF measurement for an acquisition with a different pixelsize or in super resolution applications.

A measurement can be done for example using an image of subresolution microspheres.

MeasuredOTF holds an array of measured data with information about the dimensions of the measurement. This allows you to make conversions to other representations of a transfer function such as a PSF and to use interpolations to sample the OTF at arbitrary locations not included in the initial measurement (in general to use the measurements similarly to how one could use a model). This can be useful for using the same OTF measurement for an acquisition with a different pixelsize or in super resolution applications.