Add --feature-quality help warning

opendm/gpu.py

@@ -26,7 +26,7 @@ def has_popsift_and_can_handle_texsize(width, height):
         from opensfm import pypopsift
         fits = pypopsift.fits_texture(int(width * 1.02), int(height * 1.02))
         if not fits:
-            log.ODM_WARNING("Image size (%sx%spx) would not fit in GPU memory, falling back to CPU" % (width, height))
+            log.ODM_WARNING("Image size (%sx%spx) would not fit in GPU memory, try lowering --feature-quality. Falling back to CPU" % (width, height))
         return fits
     except (ModuleNotFoundError, ImportError):
         return False