Filter noise and interpolate microscopy images in frequency domain

版本 1.2.0.0 (692.5 KB) 作者: Shalin Mehta
Remove spatial frequencies beyond the optical cutoff and perform physically accurate interpolation.
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更新时间 2013/3/1

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Intensities recorded by the microscopes (any imaging system with finite aperture) are subject to diffraction limit - the recorded features cannot be finer than the optical cutoff of the system. Filtering the spatial frequencies beyond the optical cutoff provides simple yet effective means of reducing noise. Since microscopy data is band-limited, padding in frequency domain provides accurate interpolation.

引用格式

Shalin Mehta (2024). Filter noise and interpolate microscopy images in frequency domain (https://www.mathworks.com/matlabcentral/fileexchange/40207-filter-noise-and-interpolate-microscopy-images-in-frequency-domain), MATLAB Central File Exchange. 检索来源 .

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opticalLowPassInterpolation27Feb2013/ImageProcessing/

opticalLowPassInterpolation27Feb2013/OpticsModeling/

版本 已发布 发行说明
1.2.0.0

Previous submission contained wrong file.

1.1.0.0

* Added an example of improving a point spread function affected by Poisson noise.
* Sharpness of the frequency domain filter is now automatically calculated.
* Renamed the function.

1.0.0.0