OSError: Cannot identify image file

Question

Hi,

I'm trying to implement building footprint detection using Deep Learning as shown in this example Extracting Building Footprints From Drone Data | ArcGIS for Developers with my own data. But I'm getting the following error when I run the prepare_data() function.

The command I ran was

The error persists even after reinstalling pillow 6.2.1.

Any ideas on how to resolve it? I'm using ArcGIS Pro 2.5.0.

Thanks in advance.

Anonymous User · Answer

Can you post a sample tile here and the metadata of the tile, it seems that the imagery you are using is multi spectral imagery. You need to convert multi spectral imagery to RGB format with datatype 8-bit unsigned, you can do it so by layer -> right click -> Export Raster and then check render and RGB options while exporting data.

Also we have added experimental support for multi spectral data, you can trigger that by adding imagery_type='ms'  kwarg to prepare_data() method. You can directly used you training data this way, you need to have gdal installed in order to use it. if you are using arcgis pro python environment it would be there by default.

Same answer as this thread https://community.esri.com/message/910826-re-oserror-cannot-identify-image-file?commentID=910826#comment-910826

MarkSanford1 · Answer

I to am having the same error issue as the others, I tried uninstalling Pillow and reinstalling the updated version as well. I have tried it on a local as well as a network drive to see if there was an issue with permissions?? Any help would be much appreciated!

JingyiHu · Answer

I am getting the same issue here...