ISO 14524:1999, Photography -- Electronic still-picture cameras -- Methods for measuring opto-electronic conversion functions (OECFs)

This International Standard specifies methods for the measurement of opto-electronic conversion functions (OECFs) of electronic still-picture cameras whose output is encoded as a digital image file. The OECF is defined as the relationship between the focal plane log exposures or scene log luminances, and the digital output levels of an opto-electronic digital image capture system.This International Standard applies to both monochrome and colour electronic still-picture cameras.