scholarly journals Modified slanted-edge method and multidirectional modulation transfer function estimation

2014 ◽  
Vol 22 (5) ◽  
pp. 6040 ◽  
Author(s):  
Kenichiro Masaoka ◽  
Takayuki Yamashita ◽  
Yukihiro Nishida ◽  
Masayuki Sugawara
Keyword(s):  
Transfer Function ◽  
Modulation Transfer Function ◽  
Function Estimation ◽  
Modulation Transfer ◽  
Edge Method

Error of the slanted edge method for measuring the modulation transfer function of imaging systems

2018 ◽  
Vol 57 (7) ◽  
pp. B83 ◽  
Author(s):  
Xufen Xie ◽  
Hongda Fan ◽  
Hongyuan Wang ◽  
Zebin Wang ◽  
Nianyu Zou
Keyword(s):  
Transfer Function ◽  
Modulation Transfer Function ◽  
Imaging Systems ◽  
Modulation Transfer ◽  
Edge Method

Digital Camera Color Resolution Test Based on Knife-Edge Method

2013 ◽  
Vol 469 ◽  
pp. 246-250 ◽  
Author(s):  
Yue Hong Song ◽  
Jun Qing Xu
Keyword(s):  
Transfer Function ◽  
Modulation Transfer Function ◽  
Color Space ◽  
Digital Camera ◽  
Image Data ◽  
Knife Edge ◽  
Modulation Transfer ◽  
Lab Color Space ◽  
Edge Method

A resolution test-chart for digital camera has been developed based on the knife-edge method. RAW images have been acquired with NikonD7000 DSLR and Canon G12. Set the device color-space to Adobe RGB, and convert the image data to LAB color-space using Adobe RGB profile. The Fourier transfer of the LAB tonal value were computed under MATLAB environment. Then by analyzing the L/C/H (Derived from LAB space ) and the Modulation Transfer Function (MTF), we can get the resolution characteristics of the Nikon D7000 and Canon G12 camera.

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