Matlab function for extraction of phase from interferogram

版本 1.0.0.0 (2.9 MB) 作者: Dong-Gyu Jang
phase of the interferogram is extracted.
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更新时间 2015/11/4

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This is my built function for matlab used for extraction of phase from interferogram in interferometry. There are 2 mode for operation. Mode 1 is manual operation of mouse-selecting side peak (the peak containing phase information of the interferogram) in the frequency space for the interferogram. Mode 2 is automatic selection of side peak with given peak width for the interferogram of enough number of fringes. For minimizing noise, mode 1 is highly recommended.
How to use
Mode 1: phase_extraction(data,1)
Mode 2: phase_extraction(data,2,peak_width) or phase_extraction(data,2)
Function output: extracted phase in form of matrix (radian unit)
where data and peak_width are interferogram data (= imread(*.bmp) or imread(*.png)) and width of the side peak in frequency space, respectively. Smaller wide reduces noise but too much small value results in breaking of final phase shift profile as too much information is lost. Omitting peak_width in calling function make the function runs with default peak width of 30. (30*30 data points in square box around peak are selected)
Details description is given in HTML publication of the code.

引用格式

Dong-Gyu Jang (2024). Matlab function for extraction of phase from interferogram (https://www.mathworks.com/matlabcentral/fileexchange/53421-matlab-function-for-extraction-of-phase-from-interferogram), MATLAB Central File Exchange. 检索来源 .

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版本 已发布 发行说明
1.0.0.0

Minor correction to description
Use of external function, maximize, is removed and loop is replaced with vector calculation for speed up.
Description is added.
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More visual descriptions are added to function picture and compress file.
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