topic Re: SOLVED: Problems Reclassifying Rasters in Data Management Questions https://community.esri.com/t5/data-management-questions/solved-problems-reclassifying-rasters/m-p/145391#M8249 <HTML><HEAD></HEAD><BODY><SPAN>Erica,</SPAN><BR /><BR /><SPAN>This is great.&nbsp; I'm just curious if you have any thoughts on how one might go about reclassifying a mosaic dataset.&nbsp; I'm concerned that I may have hit a dead end.&nbsp; The mosaic dataset really seems to be geared toward displaying imagery and less toward analyzing imagery.</SPAN></BODY></HTML> Tue, 24 May 2011 22:56:38 GMT ThomasDilts 2011-05-24T22:56:38Z SOLVED: Problems Reclassifying Rasters https://community.esri.com/t5/data-management-questions/solved-problems-reclassifying-rasters/m-p/145390#M8248 <HTML><HEAD></HEAD><BODY><SPAN>I've been working on a solution to this problem for a while now so thought I'd post the workaround that I found.</SPAN><BR /><BR /><SPAN>I am importing landsat bands and attempting to reclassify the DN Values 0-255 into two new classes, for example 0 and 1.&nbsp; For most bands, using the reclassify function works.&nbsp; However, for some band files, reclassifying either does not work and I get an error message, </SPAN><BR /><BR /><SPAN>The input raster minimum/maximum (huge number) is out of range.&nbsp; To ensure a correct reclassification, edit ranges or use a different precision settings in the reclassification dialog box.</SPAN><BR /><BR /><SPAN>Sometimes the reclassify tool works, but my output is incorrect - an image showing vertical lines or bands with values 0 and no data. </SPAN><BR /><BR /><SPAN>I tried to calculate statistics first because I noticed that this file, unlike the other files I worked with, did not have statistics calculated, but when I tried that I get the error message,</SPAN><BR /><BR /><SPAN>Invalid drop item:&nbsp; One or more dropped items were invalid and will not be added to the control.</SPAN><BR /><BR /><SPAN>My solution:</SPAN><BR /><BR /><SPAN>Build an attribute table for the raster data set.</SPAN><BR /><SPAN>Build Statistics by clicking the symbology tab "discrete color".</SPAN><BR /><SPAN>Reclassify the raster by using the tool "reclass by table".&nbsp; I built the table in the reclassify tool - it's easy there to create and save a table based on your preferences for the reclass function.</SPAN><BR /><BR /><SPAN>This successfully built a correctly reclassed image for me.</SPAN><BR /><BR /><SPAN>Hope this helps someone struggling with the same problems!</SPAN></BODY></HTML> Fri, 20 May 2011 15:42:55 GMT https://community.esri.com/t5/data-management-questions/solved-problems-reclassifying-rasters/m-p/145390#M8248 EricaNewton 2011-05-20T15:42:55Z Re: SOLVED: Problems Reclassifying Rasters https://community.esri.com/t5/data-management-questions/solved-problems-reclassifying-rasters/m-p/145391#M8249 <HTML><HEAD></HEAD><BODY><SPAN>Erica,</SPAN><BR /><BR /><SPAN>This is great.&nbsp; I'm just curious if you have any thoughts on how one might go about reclassifying a mosaic dataset.&nbsp; I'm concerned that I may have hit a dead end.&nbsp; The mosaic dataset really seems to be geared toward displaying imagery and less toward analyzing imagery.</SPAN></BODY></HTML> Tue, 24 May 2011 22:56:38 GMT https://community.esri.com/t5/data-management-questions/solved-problems-reclassifying-rasters/m-p/145391#M8249 ThomasDilts 2011-05-24T22:56:38Z Re: SOLVED: Problems Reclassifying Rasters https://community.esri.com/t5/data-management-questions/solved-problems-reclassifying-rasters/m-p/145392#M8250 <HTML><HEAD></HEAD><BODY><SPAN>I'm sorry Tom, I have no experience with mosaic datasets...</SPAN><BR /><BR /><SPAN>Erica</SPAN></BODY></HTML> Mon, 30 May 2011 17:23:24 GMT https://community.esri.com/t5/data-management-questions/solved-problems-reclassifying-rasters/m-p/145392#M8250 EricaNewton 2011-05-30T17:23:24Z