ellipseMatrix(y0, x0, a, b, theta, im, c1, c2, pInterp)

Drawing an ellipse into a matrix image.
Updated 14 Oct 2014

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Set the elements of the matrix im which are in the interior of the
ellipse E to the value 'c1'. The ellipse E has center (y0, x0), the
major axis = a, the minor axis = b, and theta is the angle made by the
major axis with the orizontal axis.
ret = ellipseMatrix(y0, x0, a, b, theta, im, color)
ret is a matrix of the same size as the matrix im.
The input parameters c2 and pInterp are optional. If they are present
the ellipse will have a smoother border (of size pInterp pixels) with
variations of color between c1 and c2.
Function: ellipseMatrix
Version: 1.2
% October 14, 2014
% Author: Nicolae Cindea

Cite As

Nicolae Cindea (2024). ellipseMatrix(y0, x0, a, b, theta, im, c1, c2, pInterp) (https://www.mathworks.com/matlabcentral/fileexchange/17499-ellipsematrix-y0-x0-a-b-theta-im-c1-c2-pinterp), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2011b
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes

fixing some typos in the description

An example of utilisation is added.

A simpler code and some new options.