10.6084/m9.figshare.4508408.v1
Zong Qin
Zong
Qin
Po-Jung Wong
Po-Jung
Wong
Wei-Chung Chao
Wei-Chung
Chao
Fang-Cheng Lin
Fang-Cheng
Lin
Yi-Pai Huang
Yi-Pai
Huang
Han-Ping Shieh
Han-Ping
Shieh
figshare admin OSA
figshare admin
osa
Matlab P-file for SFR calculation
Optica Publishing Group
2017
Image quality assessment
Vision - acuity
Vision - patterns and recognition
Cameras
Spatial resolution
Modulation transfer function
2017-02-08 18:33:02
Software
https://opticapublishing.figshare.com/articles/software/Matlab_P-file_for_SFR_calculation/4508408
Author: Zong QIN, Po-Jung WONG, et al., National Chiao Tung University, Taiwan, R.O.C.
Function name: Calc_SFR
Description: Calculate spatial frequency response based on a slanted-edge
Input argument: None
Output argument: An N by 2 matrix whose first and second column denotes spatial frequency in cycle/pixel and contrast ratio respectively
Output figure: see "Figures.bmp"
How to use: Once the function is called, a dialog box will be prompted for you to select an image file, and then a slanted-edge region (region of interest) needs to be cropped from the image interactively. This program is written for vertical slanted-edge, thus if a horizontal edge is to be investigated, it should be rotated for 90 degree in advance.
This function is compatible with Matlab r2015b or later version. Compatibility is not guaranteed for older version Matlab.