From f8fd84dfcca422f1210b62df6e0e98b677b3da91 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joakim=20And=C3=A9n?= <janden@kth.se>
Date: Mon, 11 Apr 2022 18:27:08 +0200
Subject: [PATCH] Fix #604 (#607)

---
 src/aspire/source/image.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/aspire/source/image.py b/src/aspire/source/image.py
index 8967d5dfc3..ad762b15d5 100644
--- a/src/aspire/source/image.py
+++ b/src/aspire/source/image.py
@@ -725,7 +725,7 @@ def __init__(self, im, metadata=None, angles=None):
 
         # Create filter indices, these are required to pass unharmed through filter eval code
         #   that is potentially called by other methods later.
-        self.filter_indices = np.zeros(self.n)
+        self.filter_indices = np.zeros(self.n, dtype=int)
         self.unique_filters = [IdentityFilter()]
 
         # Optionally populate angles/rotations.