align_image_stack fails to process PNGs: Assertion failed
align_image_stack fails for certian PNG files that were created by ImageMagick convert from a CorelDRAW-created PDF file.
Here's the commandline output:
Unable to read EXIF data from opened file:C47C_ref.png
Unable to read EXIF data from opened file:C47C_src.png
Creating control points between C47C_ref.png and C47C_src.png
Sometimes it works, sometimes it doesn't. I tried converting the files back and forth to different formats to drop any strange data that could confuse align_image_stack, but it kept failing to process the files.
Is this a bug?