topic Re: OSError: cannot identify image file in ArcGIS API for Python Questions

OSError: cannot identify image file

JingyiHu — Sun, 12 Dec 2021 09:24:31 GMT


I have this issue when I try to use prepare_data function. I already have the newest version of pillow. 
I also noticed that the tiff files that I get from the "export training data for deep learning" can not be opened . 
(constantly showing this)
 
As fopr the meta data format, I tried labeled tiles, classified tiles, KITTI labels and PASCAL VOC format. None of their output tiff can be opened.

I m wondering how can I fix this? Thank you!

Re: OSError: cannot identify image file

Anonymous User — Sat, 22 Feb 2020 14:07:40 GMT

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.

Re: OSError: cannot identify image file

AdrianHughes3 — Wed, 13 May 2020 10:33:22 GMT

I'm using ms imagery and had this error. Using imagery_type ='ms' fixed this.

However, data.show_batch() does not return any images in the notebook. Is this an issue for ms imagery?

Thanks

Re: OSError: cannot identify image file

AdrianHughes3 — Thu, 14 May 2020 15:54:33 GMT

The error in the OP also occurs with the Train Deep learning Model tool in Pro 2.5

When working with multispectral imagery do I need to use Notebook and arcgis.learn as opposed to the tools in pro which will not work with ms imagery?

Re: OSError: cannot identify image file

Anonymous User — Sun, 12 Dec 2021 09:24:34 GMT

Hello I have *the same prbm
Please help me
\Users\CE-PC\AppData\Local\ESRI\conda\envs\deeplearning\Lib\site-packages\PIL\Image.py", line 2822, in open     raise IOError("cannot identify image file %r" % (filename if filename else fp)) OSError: cannot identify image file 'C:\\Export1\\images\\000000000.tif'
Échec de l’exécution de (TrainDeepLearningModel).

Re: OSError: cannot identify image file

Anonymous User — Sun, 12 Dec 2021 09:24:36 GMT

Hello I have *the same prbm
Please help me
\Users\CE-PC\AppData\Local\ESRI\conda\envs\deeplearning\Lib\site-packages\PIL\Image.py", line 2822, in open     raise IOError("cannot identify image file %r" % (filename if filename else fp)) OSError: cannot identify image file 'C:\\Export1\\images\\000000000.tif'
Échec de l’exécution de (TrainDeepLearningModel).

Re: OSError: cannot identify image file

Anonymous User — Sun, 12 Dec 2021 09:24:39 GMT

Hello I have *the same prbm
Please help me
\Users\CE-PC\AppData\Local\ESRI\conda\envs\deeplearning\Lib\site-packages\PIL\Image.py", line 2822, in open     raise IOError("cannot identify image file %r" % (filename if filename else fp)) OSError: cannot identify image file 'C:\\Export1\\images\\000000000.tif'
Échec de l’exécution de (TrainDeepLearningModel).

Re: OSError: cannot identify image file

Anonymous User — Wed, 12 Aug 2020 04:34:52 GMT

You can use the following guide to train models on multispectral imagery.

Working with Multispectral Data | ArcGIS for Developers

Re: OSError: cannot identify image file

Anonymous User — Sun, 30 Aug 2020 23:28:10 GMT

hello dear communities
Thanks for the answers
Please I reinstated arcgis pro I received the following connection problem.

2nd problem with the notebook: it does not accept the training data generated by arcgis pro? How to generate them and in what format ?

Thank you

Re: OSError: cannot identify image file

KeiranBray — Wed, 02 Sep 2020 07:02:21 GMT

Hey @Adrian Hughes did you find a resolution for this?

Re: OSError: cannot identify image file

AdrianHughes3 — Wed, 02 Sep 2020 08:10:02 GMT

I've not looked at this for a while but yes the fix was to use imagery_type ='ms'. Interestingly my training data did not display in the ArcGIS Pro notebook but did display in the jupyter notebook (launched from startmenu under arcgis )

I will be looking at this again soon and will follow the guidelines on ms imagery in the documentation link posted

Re: OSError: cannot identify image file

DavidHarris5 — Wed, 31 Mar 2021 20:18:36 GMT

This error persists when the raster is not multi-spectral. 16-bit does not appear to be supported. And when changing the raster to 8-bit, it does not appear to support RGB rasters. I have been having many of the issues reported with the deep learning toolset, and any support would be appreciated. Below is an error from the python API when trying to view the labeled objects.

All the exported .tiff images (I have also tried .png with the same issue) are black squares. They should look something like this: