topic Re: Exporting ECW files in Geoprocessing Questions

Exporting ECW files

janehansen — Fri, 26 Jan 2018 03:26:28 GMT

Hi, I have 25 of ecw ortho files that make up a mosaic of a study area. I am wondering how I can merge each ecw together into a single file and then export it as a sid or tiff.

Thanks,

Jane

Re: Exporting ECW files

DanPatterson_Retired — Fri, 26 Jan 2018 04:11:38 GMT

http://pro.arcgis.com/en/pro-app/help/data/imagery/supported-raster-dataset-file-formats.htm

Says they are read-only. Have you tried saving them to *tiff first prior to a merge? (sid requires additional software from FME)

Re: Exporting ECW files

Luke_Pinner — Fri, 26 Jan 2018 11:07:24 GMT

Use the mosaic to new raster tool to output a single tiff file: Mosaic To New Raster—Help | ArcGIS for Desktop

Make sure you set a compression type in the environment settings or your output file size will be much larger than the sum of the originals.

Re: Exporting ECW files

Luke_Pinner — Fri, 26 Jan 2018 11:12:33 GMT

Why convert to individual tiffs first? It doesn't matter that the ECWs are read only, the question isn't about outputting to ECW.

Re: Exporting ECW files

DanPatterson_Retired — Fri, 26 Jan 2018 12:41:58 GMT

I guess I had erroneously assumed she would have tried that already

Re: Exporting ECW files

janehansen — Fri, 26 Jan 2018 19:22:35 GMT

Thanks for your help Dan and Luke. Before posting I did try to run the mosaic to new raster tool but it didn't work first time round so I thought maybe I was using the wrong tool. I have now succeeded so thanks for your input.

Jane