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David Young
University of Sussex and University of Southampton
Followers: 0 Following: 0
Professional Interests: Image Processing
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Submitted
Affine optic flow
Estimates the parameters of an affine (first-order) optic flow model from two images.
mer än 8 år ago | 8 downloads |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/27093/versions/6/screenshot.png)
Submitted
Hough transform for circles
A Hough transform function for detecting circles, optimised to allow search over radii.
mer än 8 år ago | 18 downloads |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/26978/versions/4/screenshot.jpg)
Submitted
Sinkhorn-Knopp algorithm for matrix normalisation
Normalises a matrix so that the row and column sums are all unity
nästan 9 år ago | 5 downloads |
Submitted
Rotate images with automatic cropping
The blank triangles that appear in the corners of rotated images are cropped away.
mer än 9 år ago | 2 downloads |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/48624/versions/1/screenshot.jpg)
Submitted
Gradients with Gaussian smoothing
Grey-level gradients are estimated using Gaussian smoothing followed by symmetric differencing.
mer än 9 år ago | 3 downloads |
Submitted
A multidimensional map class
MapN provides a map class similar to containers.Map, but with multidimensional keys.
ungefär 10 år ago | 3 downloads |
Submitted
TerraSAR-X and TanDEM-X tools
Read and convert TerraSAR-X and TanDEM-X COSAR files
mer än 10 år ago | 4 downloads |
Submitted
Fast 2-D convolution
Speeds up many 2-D convolutions using the SVD; also finds a fast approximation in other cases.
mer än 10 år ago | 6 downloads |
Submitted
Canny edge detection in 2-D and 3-D
A Canny edge detector for two-dimensional image and three-dimensional volume data.
mer än 10 år ago | 7 downloads |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/45459/versions/3/screenshot.jpg)
Submitted
Max and min keeping NaNs
The max and min functions ignore NaN values. These functions keep them like arithmetic functions do.
mer än 10 år ago | 2 downloads |
Submitted
Image correspondences using cross-correlation
Find matching features in pairs of images using normalised cross-correlation: class file and demo.
mer än 12 år ago | 6 downloads |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/27269/versions/4/screenshot.png)
Submitted
Extended Brookshear Machine emulator and assembler
Emulator and assembler for a simple computer, a teaching aid for computer science courses.
mer än 12 år ago | 1 download |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/22593/versions/8/screenshot.jpg)
Submitted
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)).
nästan 13 år ago | 1 download |
Submitted
2-D convolution using the FFT
Convolution in 2-D using the Fast Fourier Transform.
mer än 13 år ago | 3 downloads |
Submitted
Fourier transform demonstration
An introductory demonstration of the discrete Fourier transform, making use of the fft function.
nästan 14 år ago | 5 downloads |
Submitted
Extended array indexing
Indexes a virtual array formed by extending an array indefinitely on each dimension.
mer än 14 år ago | 1 download |
Submitted
Log-polar image sampling
Resamples an image from a conventional grid to a log-polar grid, and back.
mer än 14 år ago | 3 downloads |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/27023/versions/1/screenshot.jpg)
Submitted
Elementary Cellular Automata
Simulates any 1D nearest-neighbour binary cellular automaton.
mer än 14 år ago | 4 downloads |
![Thumbnail](/matlabcentral/mlc-downloads/downloads/submissions/26929/versions/2/screenshot.jpg)
Submitted
Gabor function masks
Create Gabor-function convolution masks
mer än 15 år ago | 1 download |