clip raster slow

[leahwasser]

hi all,
I am trying to clip some images in jp2 format using a polygon watershed boundary (one polygon with an irregular shape). I am using the clip raster tool within spatial analyst.

what is a reasonable time to wait for the clip process to complete on an image that is say 800mb?
It was processing for a solid 3 hours earlier which seems like a long time.
Is there a more efficient way to perform this clip?
Best
Leah

[JeffreySwain]

Bear in mind the uncompressed size of the raster(check the properties on the source tab in ArcMap), jp2s can be highly compressed and the size of the new raster may be larger than the original raster.  For an idea of what the expectations could be, convert the clipping polygon to a graphic, select the graphic, right click the raster and then Data > Export Data and when the dialogue opens up, selected graphic.  This will give you an idea of the size of the raster you are creating.   You are probably creating a raster much larger than the original.