From fd9189ed45477212e43da0904e793dc19bee182a Mon Sep 17 00:00:00 2001
From: David Manthey <david.manthey@kitware.com>
Date: Thu, 16 Jun 2022 12:05:22 -0400
Subject: [PATCH] Fix getPixel for single channel sources.

---
 CHANGELOG.md                   | 5 +++++
 large_image/tilesource/base.py | 5 ++++-
 test/test_source_base.py       | 1 +
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index c3871c45b..deaeb85c9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Change Log
 
+## Unreleased
+
+### Bug Fixes
+- Fix getPixel for single channel sources ([875](../../pull/875))
+
 ## 1.14.5
 
 ### Improvements
diff --git a/large_image/tilesource/base.py b/large_image/tilesource/base.py
index 6ed628897..0eab16cd9 100644
--- a/large_image/tilesource/base.py
+++ b/large_image/tilesource/base.py
@@ -2411,7 +2411,10 @@ def getPixel(self, includeTileRecord=False, **kwargs):
                 pixel['tile'] = tile
             img = tile['tile']
             if img.size[0] >= 1 and img.size[1] >= 1:
-                pixel.update(dict(zip(img.mode.lower(), img.load()[0, 0])))
+                if len(img.mode) > 1:
+                    pixel.update(dict(zip(img.mode.lower(), img.load()[0, 0])))
+                else:
+                    pixel.update(dict(zip([img.mode.lower()], [img.load()[0, 0]])))
         return pixel
 
 
diff --git a/test/test_source_base.py b/test/test_source_base.py
index f595e6354..609161cdb 100644
--- a/test/test_source_base.py
+++ b/test/test_source_base.py
@@ -157,6 +157,7 @@ def testSourcesTilesAndMethods(source, filename):
     assert ts.getInternalMetadata() is not None
     assert ts.getOneBandInformation(1) is not None
     assert len(ts.getBandInformation()) >= 1
+    assert ts.getPixel(region=dict(left=0, top=0)) is not None
     # Histograms are too slow to test in this way
     #  assert len(ts.histogram()['histogram']) >= 1
     #  assert ts.histogram(onlyMinMax=True)['min'][0] is not None