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@@ -43,7 +43,14 @@ the threshold.
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<p>
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<p>
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The <b>threshold</b> must be larger than 0.0 and smaller than 1.0. A threshold
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The <b>threshold</b> must be larger than 0.0 and smaller than 1.0. A threshold
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of 0 would allow only identical valued pixels to be merged, while a
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of 0 would allow only identical valued pixels to be merged, while a
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-threshold of 1 would allow everything to be merged. Initial empirical
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+threshold of 1 would allow everything to be merged. The threshold is scaled to
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+the data range of the entire input data, not the current computational region.
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+This allows the application of the same threshold to different computational
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+regions when working on the same dataset, ensuring that this threshold has the
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+same meaning in all subregions.
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+
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+<p>
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+Initial empirical
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tests indicate threshold values of 0.01 to 0.05 are reasonable values
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tests indicate threshold values of 0.01 to 0.05 are reasonable values
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to start. It is recommended to start with a low value, e.g. 0.01, and
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to start. It is recommended to start with a low value, e.g. 0.01, and
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then perform hierarchical segmentation by using the output of the last
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then perform hierarchical segmentation by using the output of the last
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Moritz Lennert