topic Re: Raster &quot;threshold&quot; calculation in ArcGIS Image Analyst Questions https://community.esri.com/t5/arcgis-image-analyst-questions/raster-quot-threshold-quot-calculation/m-p/526465#M235 <HTML><HEAD></HEAD><BODY><P>apparently it is available</P><P><A class="link-titled" href="https://pro.arcgis.com/en/pro-app/arcpy/spatial-analyst/threshold.htm" title="https://pro.arcgis.com/en/pro-app/arcpy/spatial-analyst/threshold.htm">Threshold—Spatial Analyst module | Documentation</A>&nbsp;</P><P><A class="link-titled" href="https://pro.arcgis.com/en/pro-app/help/data/imagery/binary-thresholding-function.htm" title="https://pro.arcgis.com/en/pro-app/help/data/imagery/binary-thresholding-function.htm">Binary Thresholding function—ArcGIS Pro | Documentation</A>&nbsp;</P><BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"><P><SPAN style="color: #4c4c4c; background-color: #ffffff;">The algorithm used is the Otsu method, which was designed to distinguish between the background and foreground in imagery and create two classes with minimal intra-class variance (Otsu 1979).</SPAN></P></BLOCKQUOTE></BODY></HTML> Thu, 09 Apr 2020 22:49:54 GMT DanPatterson_Retired 2020-04-09T22:49:54Z Raster "threshold" calculation https://community.esri.com/t5/arcgis-image-analyst-questions/raster-quot-threshold-quot-calculation/m-p/526464#M234 <HTML><HEAD></HEAD><BODY><P>I am working with arcmap 10.5 to extract water bodies from sentinel 2 and landsat 8 rasters. I have found on GitHub that otsu method could be a good solution. But I don't want to install other Tools like opencv, etc.</P><P>is there a tool in ArcGIS that can automatically calculate the "threshold" value of raster files?</P></BODY></HTML> Thu, 09 Apr 2020 17:57:53 GMT https://community.esri.com/t5/arcgis-image-analyst-questions/raster-quot-threshold-quot-calculation/m-p/526464#M234 MeherELARBI 2020-04-09T17:57:53Z Re: Raster "threshold" calculation https://community.esri.com/t5/arcgis-image-analyst-questions/raster-quot-threshold-quot-calculation/m-p/526465#M235 <HTML><HEAD></HEAD><BODY><P>apparently it is available</P><P><A class="link-titled" href="https://pro.arcgis.com/en/pro-app/arcpy/spatial-analyst/threshold.htm" title="https://pro.arcgis.com/en/pro-app/arcpy/spatial-analyst/threshold.htm">Threshold—Spatial Analyst module | Documentation</A>&nbsp;</P><P><A class="link-titled" href="https://pro.arcgis.com/en/pro-app/help/data/imagery/binary-thresholding-function.htm" title="https://pro.arcgis.com/en/pro-app/help/data/imagery/binary-thresholding-function.htm">Binary Thresholding function—ArcGIS Pro | Documentation</A>&nbsp;</P><BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"><P><SPAN style="color: #4c4c4c; background-color: #ffffff;">The algorithm used is the Otsu method, which was designed to distinguish between the background and foreground in imagery and create two classes with minimal intra-class variance (Otsu 1979).</SPAN></P></BLOCKQUOTE></BODY></HTML> Thu, 09 Apr 2020 22:49:54 GMT https://community.esri.com/t5/arcgis-image-analyst-questions/raster-quot-threshold-quot-calculation/m-p/526465#M235 DanPatterson_Retired 2020-04-09T22:49:54Z