Spatial Frequency Response (SFR): sfrmat

Matlab Code. All code and example images are covered by BSD License

sfrmat5: SFR analysis for ISO 12233 version 4

Matlab code

NEW, Python version of sfrmat5 

Reference: Robin Jenkin, Vijayalakshmi Sajjanar, Aditya Khatawkar, Ayaan Dhamnekar, Apeksha Bannigidad, Nishchay Gaonkar, An Open-source Python Implementation of SFRMAT5 for ISO 12233 Spatial Frequency Response MeasurementElectronic Imaging,  2026,  pp 253-1 – 253-7

Python code courtesy of Robin Jenkin

 

sfrmat4: SFR analysis with distorted-edge correction

Reference: P. D. Burns and D. Williams, Camera Resolution and Distortion: Advance Edge Fitting, IS&T Internat. Symp. Electronic Imaging, Image Quality and System Performance (2018)

sfrmat4 (source code, v5, 4 Feb. 2022):

Support now added for  *.ptw and *.ptm image files from FLIR (forward-looking infrared) cameras.

Differences between sfrmat3 and sfrmat4

sfrmat3: SFR analysis for digital cameras and scanners

sfrmat3