Classified Image

I classified this image in ArcGIS 10.3, but my Professor said the pixels are big and I should make it smaller. This is my problem: is there any tool that can use to make the picture grains finer. Or are there any parameters i can adjust in order to make the grain size smaller.

  • 1
    It would help if you try to explain your current workflow. What tools, settings etc. Commented May 2, 2016 at 15:33
  • 1
    Use the cell size environment, do not try to resample the classified raster. IMO resample to a finer cell size should almost never be done and never be done on classified raster. You need to redo the classification with the cell size either specified as a value or to match one of your inputs; have a look back through your workflow and see where the cell size has increased, perhaps a polygon to raster or terrain to raster has executed with the default (horrible) cell size which is dragging everything else down. Commented May 3, 2016 at 3:24

2 Answers 2


You should check your Environment Settings and adjust the Cell Size to an appropriate cell size: ArcGIS Cell Size


I would hazard to guess that your Professor is asking that your classification be done at a finer resolution than you've presented here. If the image you show is at the same cell size as the original image then changing the resolution does not change the fundamentals of the classification. If you reduced the resolution from the original image to process faster or to present the final product in a more generalized way, then you should go back to the product before you generalized (or re-sampled) the image.

  • Can you please attach a help eg. resample, reduce resolution etc.Thank you.
    – saviour123
    Commented May 3, 2016 at 6:42

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.