Online Image Processing Demonstrations

Detection of the edges in an image using the Canny algorithm.
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Detection of the ridges in an image using the Hessian filter (Canny algorithm).
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Filtering an image in the frequency domain. Low-Pass, high-Pass, or band-Pass filters.

Directional analysis of an image based on the gradient structure tensor.
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Uniformization of the local mean and variance. Correct the non uniform illumination.
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Run the watershed segmentation algorithm on a smoothed version of the image.
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Denoising by soft-thresholding the wavelet coefficients.

Wavelet transform and its inverse using Daubechies wavelets.

Classic morphological operators running on graylevel image.
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Discrete Fourier transform of a image. Display modulus, phase, real, and imaginary part.

Wavelet transform and its inverse using Spline wavelets.
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This is only a canvas for building a new Javascript demo.

Filter Creator

Filter Creator helps you to better understand the mathematics of discrete and continuous audio filters and is particularly aimed at students of signal processing classes.

iMondrian

This app generates artistic representations of Mondrian processes. These processes are named after Piet Mondrian (1872-1944), a great figure in the neoplasticism style known for his grid-based paintings.

3D Screen Saver

Mondriaan process mapped onto the surface of an exponential-spline monopole Download

2D Screen Saver

Pseudo-color display of a realization of a Mondrian process