Hi Ali,
It appears that the smoothing operation in SPM12 has failed due to an issue with the datatype of the image you are trying to smooth. The error message indicates that the datatype "unknown" is unrecognised, which suggests that the image file might be corrupted or not in a format that SPM can recognize.
Here are some steps you could take to troubleshoot and resolve the issue:
- Check Image Files: Ensure that the image files you are trying to smooth are not corrupted. You can try opening them with another software to check if they are readable.
- Data Type: Verify the data type of the images. SPM expects certain datatypes for its operations. You might need to convert your images to a compatible datatype (e.g., `int16`, `float32`) before smoothing.
- File Permissions: Check the file permissions to make sure that SPM has the necessary read/write access to the image files.
- Headers and Paths: Check the headers of the NIFTI files to make sure they contain the correct information. Also, verify that the file paths are correct and do not contain any special or non-ASCII characters that might be causing issues.
Hope this Helps!
