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    <title>topic how to apply a stetch to a raster in ArcGIS Pro Questions</title>
    <link>https://community.esri.com/t5/arcgis-pro-questions/how-to-apply-a-stetch-to-a-raster/m-p/51859#M2197</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;I am making a raster function using some band arithmetic and then applying a stretch the max is 162 and the min is -190, the mean is 0.18 and the std dev is 1.87.&lt;/P&gt;&lt;P&gt;I want to stretch those values between 0 and 255 to do more functions on this band.&amp;nbsp; The problem is when I do a stretch with 2 std dev all values go to 127.5 everywhere.&amp;nbsp; There is a large area in the centre of the image that pixels are all zero...&amp;nbsp; It looks like the lack of statistics on the band calculation is preventing the stretch from being applies.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Mon, 20 Mar 2017 19:44:19 GMT</pubDate>
    <dc:creator>AlexanderGray</dc:creator>
    <dc:date>2017-03-20T19:44:19Z</dc:date>
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      <title>how to apply a stetch to a raster</title>
      <link>https://community.esri.com/t5/arcgis-pro-questions/how-to-apply-a-stetch-to-a-raster/m-p/51859#M2197</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;I am making a raster function using some band arithmetic and then applying a stretch the max is 162 and the min is -190, the mean is 0.18 and the std dev is 1.87.&lt;/P&gt;&lt;P&gt;I want to stretch those values between 0 and 255 to do more functions on this band.&amp;nbsp; The problem is when I do a stretch with 2 std dev all values go to 127.5 everywhere.&amp;nbsp; There is a large area in the centre of the image that pixels are all zero...&amp;nbsp; It looks like the lack of statistics on the band calculation is preventing the stretch from being applies.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 20 Mar 2017 19:44:19 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-pro-questions/how-to-apply-a-stetch-to-a-raster/m-p/51859#M2197</guid>
      <dc:creator>AlexanderGray</dc:creator>
      <dc:date>2017-03-20T19:44:19Z</dc:date>
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