<div dir="ltr"><p class="MsoNormal" style="margin-bottom:0.0001pt;color:rgb(0,0,0);font-family:calibri,arial,helvetica,sans-serif;font-size:16px;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:11.5pt;font-family:"segoe ui",sans-serif;color:rgb(33,33,33)">Hi all, <u></u><u></u></span></p><p class="MsoNormal" style="margin-bottom:0.0001pt;color:rgb(0,0,0);font-family:calibri,arial,helvetica,sans-serif;font-size:16px;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:11.5pt;font-family:"segoe ui",sans-serif;color:rgb(33,33,33)"><u></u> <u></u></span></p><p class="MsoNormal" style="margin-bottom:0.0001pt;color:rgb(0,0,0);font-family:calibri,arial,helvetica,sans-serif;font-size:16px;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:11.5pt;font-family:"segoe ui",sans-serif;color:rgb(33,33,33)">I would like to "segment" an image using a sort of <a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__en.wikipedia.org_wiki_Voronoi-5Fdiagram&d=CwMFaQ&c=-dg2m7zWuuDZ0MUcV7Sdqw&r=WXcS58IfKIlNshJRe1p51UO4aV2lTPDP2KeAvExEWkM&m=-q05ggwZ7xB31XO6ZJhmFYht4GKQ2nmFojS6li_t2As&s=Cqh6IsnZ5-oxcE2yVMRceyhb4KwTB2q3ihdDv8E4GWg&e=" target="_blank"><span style="color:blue">Voronoi</span></a> algorithm on a cost surface instead of distance between point.<u></u><u></u></span></p><p class="MsoNormal" style="margin-bottom:0.0001pt;color:rgb(0,0,0);font-family:calibri,arial,helvetica,sans-serif;font-size:16px;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:11.5pt;font-family:"segoe ui",sans-serif;color:rgb(33,33,33)"> <u></u><u></u></span></p><p class="MsoNormal" style="margin-bottom:0.0001pt;color:rgb(0,0,0);font-family:calibri,arial,helvetica,sans-serif;font-size:16px;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:11.5pt;font-family:"segoe ui",sans-serif;color:rgb(33,33,33)">Below you can see an image where the black pixels identity areas with high cost value. I would like to identify the "valley" between theses black areas. <u></u><u></u></span></p><p class="MsoNormal" style="margin-bottom:0.0001pt;color:rgb(0,0,0);font-family:calibri,arial,helvetica,sans-serif;font-size:16px;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:11.5pt;font-family:"segoe ui",sans-serif;color:rgb(33,33,33)"><u></u> <u></u></span></p><p class="MsoNormal" style="margin-bottom:0.0001pt;color:rgb(0,0,0);font-family:calibri,arial,helvetica,sans-serif;font-size:16px;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:11.5pt;font-family:"segoe ui",sans-serif;color:rgb(33,33,33)">In the second image I draft by hand an ideal solution for few high cost areas. <u></u><u></u></span></p><span class="gmail-im" style="font-family:calibri,arial,helvetica,sans-serif;font-size:16px"><p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:11.5pt;font-family:"segoe ui",sans-serif;color:rgb(33,33,33)"><u></u> <u></u></span></p><p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:11.5pt;font-family:"segoe ui",sans-serif;color:rgb(33,33,33)">Which grass command can do this kind of delineation? <u></u><u></u></span></p><p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:11.5pt;font-family:"segoe ui",sans-serif;color:rgb(33,33,33)"><u></u> <u></u></span></p></span><p class="MsoNormal" style="margin-bottom:0.0001pt;color:rgb(0,0,0);font-family:calibri,arial,helvetica,sans-serif;font-size:16px;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat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<div>Giuseppe Amatulli, Ph.D.<br>
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Research scientist at<br>
<span>Yale School of Forestry & Environmental Studies<br>
</span><span>Yale Center for Research Computing<br>
</span>Center for Science and Social Science Information<br>
New Haven, 06511<br>
<div>Teaching: <a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__spatial-2Decology.org&d=CwMFaQ&c=-dg2m7zWuuDZ0MUcV7Sdqw&r=WXcS58IfKIlNshJRe1p51UO4aV2lTPDP2KeAvExEWkM&m=-q05ggwZ7xB31XO6ZJhmFYht4GKQ2nmFojS6li_t2As&s=2WUybjpe6r7Te9PU70VIWSGVIuSPRvgtrQM-Ej6RBuY&e=" target="_blank">
http://spatial-ecology.org</a> </div>
Work:  <a href="https://environment.yale.edu/profile/giuseppe-amatulli/" target="_blank">
https://environment.yale.edu/<wbr>profile/giuseppe-amatulli/</a> <br>
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