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-rw-r--r--libcrystfel/src/peaks.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/libcrystfel/src/peaks.c b/libcrystfel/src/peaks.c
index 0a6a439c..16692a7f 100644
--- a/libcrystfel/src/peaks.c
+++ b/libcrystfel/src/peaks.c
@@ -434,6 +434,9 @@ static void search_peaks_in_panel(struct image *image, float threshold,
/* Overall threshold */
if ( data[fs+stride*ss] < threshold ) continue;
+ /* Immediate rejection of pixels above max_adu */
+ if ( data[fs+stride*ss] > p->max_adu ) continue;
+
/* Get gradients */
dx1 = data[fs+stride*ss] - data[(fs+1)+stride*ss];
dx2 = data[(fs-1)+stride*ss] - data[fs+stride*ss];