how to measure length of lines

Posted by Rinto Anugraha on Mar 16, 2006; 1:22pm
URL: http://imagej.273.s1.nabble.com/Open-images-tp3703382p3703383.html

Dear All,

I have one 16bits grayscale image which contain only
some curved black lines, and the other areas is white.
The black lines are not the straight ones, and also
have their width more than one pixel.
How to measure the length of lines? Is it possible to
shrink the width lines into only one pixel? Is there
any plug-in, so we can transfer all coordinates of
pixels and their values into a matrix, in which the
matrix rows and colums same as the pixel size of the
image.
Thanks

Rinto Anugraha
Kyushu University, JAPAN

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