Fix possible out of bounds error in FlashCamExtractor

cta-observatory · Apr 24, 2024 · aa6db8e · aa6db8e
1 parent 5f7cf63
commit aa6db8e
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/ctapipe/image/extractor.py b/src/ctapipe/image/extractor.py
@@ -1528,15 +1528,15 @@ def adaptive_centroid(waveforms, peak_index, rel_descend_limit, centroids):
         sum_ += waveforms[j]
         jsum += j * waveforms[j]
         j -= 1
-        if waveforms[j] > peak_amplitude:
+        if j > 0 and waveforms[j] > peak_amplitude:
             descend_limit = rel_descend_limit * peak_amplitude
 
     j = peak_index + 1
     while j < n_samples and waveforms[j] > descend_limit:
         sum_ += waveforms[j]
         jsum += j * waveforms[j]
         j += 1
-        if waveforms[j] > peak_amplitude:
+        if j < n_samples and waveforms[j] > peak_amplitude:
             descend_limit = rel_descend_limit * peak_amplitude
 
     if sum_ != 0.0: