![photo](/responsive_image/150/150/0/0/0/cache/matlabcentral/profiles/415894.jpg)
David Young
University of Sussex and University of Southampton
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Professional Interests: Image Processing
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Affine optic flow
Estimates the parameters of an affine (first-order) optic flow model from two images.
9年弱 前 | ダウンロード 4 件 |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/27093/versions/6/screenshot.png)
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Hough transform for circles
A Hough transform function for detecting circles, optimised to allow search over radii.
9年弱 前 | ダウンロード 18 件 |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/26978/versions/4/screenshot.jpg)
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Sinkhorn-Knopp algorithm for matrix normalisation
Normalises a matrix so that the row and column sums are all unity
9年以上 前 | ダウンロード 1 件 |
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Rotate images with automatic cropping
The blank triangles that appear in the corners of rotated images are cropped away.
約10年 前 | ダウンロード 2 件 |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/48624/versions/1/screenshot.jpg)
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Gradients with Gaussian smoothing
Grey-level gradients are estimated using Gaussian smoothing followed by symmetric differencing.
10年以上 前 | ダウンロード 1 件 |
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A multidimensional map class
MapN provides a map class similar to containers.Map, but with multidimensional keys.
10年以上 前 | ダウンロード 1 件 |
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TerraSAR-X and TanDEM-X tools
Read and convert TerraSAR-X and TanDEM-X COSAR files
11年弱 前 | ダウンロード 3 件 |
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Fast 2-D convolution
Speeds up many 2-D convolutions using the SVD; also finds a fast approximation in other cases.
11年弱 前 | ダウンロード 3 件 |
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Canny edge detection in 2-D and 3-D
A Canny edge detector for two-dimensional image and three-dimensional volume data.
11年弱 前 | ダウンロード 4 件 |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/45459/versions/3/screenshot.jpg)
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Max and min keeping NaNs
The max and min functions ignore NaN values. These functions keep them like arithmetic functions do.
約11年 前 | ダウンロード 2 件 |
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Image correspondences using cross-correlation
Find matching features in pairs of images using normalised cross-correlation: class file and demo.
約13年 前 | ダウンロード 4 件 |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/27269/versions/4/screenshot.png)
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Extended Brookshear Machine emulator and assembler
Emulator and assembler for a simple computer, a teaching aid for computer science courses.
約13年 前 | ダウンロード 1 件 |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/22593/versions/8/screenshot.jpg)
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Logarithm of complex sine and cosine avoiding overflow
Functions to compute log(sin(Z)) and log(cos(Z)) avoiding overflow for large abs(imag(Z)).
13年以上 前 | ダウンロード 1 件 |
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2-D convolution using the FFT
Convolution in 2-D using the Fast Fourier Transform.
14年弱 前 | ダウンロード 3 件 |
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Fourier transform demonstration
An introductory demonstration of the discrete Fourier transform, making use of the fft function.
14年以上 前 | ダウンロード 5 件 |
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Extended array indexing
Indexes a virtual array formed by extending an array indefinitely on each dimension.
15年弱 前 | ダウンロード 1 件 |
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Log-polar image sampling
Resamples an image from a conventional grid to a log-polar grid, and back.
15年弱 前 | ダウンロード 4 件 |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/27023/versions/1/screenshot.jpg)
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Elementary Cellular Automata
Simulates any 1D nearest-neighbour binary cellular automaton.
15年弱 前 | ダウンロード 4 件 |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/26929/versions/2/screenshot.jpg)