remove.outline

A function for removing an otolith outline from the file 'outline.list'. Typically done if the image is of bad quality and needs to be enhanced in a image processing software

Studies otolith shape variation among fish populations.
Otoliths are calcified structures found in the inner ear of teleost fish and their shape has
been known to vary among several fish populations and stocks, making them very useful in taxonomy,
species identification and to study geographic variations. The package extends previously described
software used for otolith shape analysis by allowing the user to automatically extract closed
contour outlines from a large number of images, perform smoothing to eliminate pixel noise described in Haines and Crampton (2000) <doi:10.1111/1475-4983.00148>,
choose from conducting either a Fourier or wavelet see Gençay et al (2001) <doi:10.1016/S0378-4371(00)00463-5> transform to the outlines and visualize
the mean shape. The output of the package are independent Fourier or wavelet coefficients
which can be directly imported into a wide range of statistical packages in R. The package
might prove useful in studies of any two dimensional objects.

Lisa Anne Libungan

shapeR

Collection and Analysis of Otolith Shape Data

Snaebjorn Palsson

remove.outline function

<dl><dt>object</dt>
<dd>A <code>shapeR</code> object</dd>
<dt>folder</dt>
<dd>The folder name where the outline that needs to be removed is stored</dd>
<dt>fname</dt>
<dd>The file name of the outline to be removed</dd></dl>

Arguments

Author

Remove otolith outline — remove.outline

<dl>

<dt>object</dt>
<dd>A <code>shapeR</code> object</dd>


<dt>folder</dt>
<dd>The folder name where the outline that needs to be removed is stored</dd>


<dt>fname</dt>
<dd>The file name of the outline to be removed</dd>

</dl>

remove.outline: Remove otolith outline

Description

Usage

Value

Arguments

Author

References

Examples