updownsample
Up/down sample an image/matrix/vector (can be of complex numbers) using the frequency domain.
The matrix/vector should be continuous of a high degree (has continuous derivatives) in order to obtain a reasonable up/down sampling
Speed-up can be achieved if the user up-samples to a near power of 2. no optimization is done inside this code for efficient fft usage.
Documentation is found inside the *.m file.
type "updownsample" for the example
Zitieren als
Ohad Gal (2024). updownsample (https://www.mathworks.com/matlabcentral/fileexchange/4658-updownsample), MATLAB Central File Exchange. Abgerufen .
Kompatibilität der MATLAB-Version
Plattform-Kompatibilität
Windows macOS LinuxKategorien
- Signal Processing > Wavelet Toolbox > Denoising and Compression >
- Signal Processing > Signal Processing Toolbox > Digital and Analog Filters > Multirate Signal Processing >
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Quellenangaben
Inspiriert von: fft_upsample
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Version | Veröffentlicht | Versionshinweise | |
---|---|---|---|
1.0.0.0 | I found a linear phase distortion in the output image (only when looking at a complex or real output image), due to spatial misplace of the input image in the fourier domain |