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ZernikeCoord
[rho,theta,Mask] = ZernikeCoord(M,[N],[CenRowCol],[rad])
Returns radial and azimuthal coordinate system to use with Zernike polynomial functions. Also returns mask to be applied to coordinate system for the aperture as well as rectangular coordinates. X coordinate is down the rows, Y coordinate is across the columns.
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Parameters |
Description |
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M [scalar] |
Number of rows in output coordinate system |
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N [scalar] |
(Optional) Number of columns in output coordinate system. Defaults to M if not specified. |
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CenRowCol [vector] |
(Optional) [row col] of center of coordinate system. Defaults to floor(N/2)+1. |
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rad [scalar] |
(Optional) Radius output coordinate system (pixels). Defaults to largest circle possible in grid space |
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Return Values |
Description |
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rho [matrix] |
Radius values |
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theta [matrix] |
Theta values |
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Mask [matrix] |
1/0 of values within circular aperture |
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xx [matrix] |
Grid of x-coordinate values |
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yy [matrix] |
Grid of y-coordinate values |
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Copyright (c) 2009. All rights reserved.
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Description