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-rw-r--r--src/GipfelWidget.cxx2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/GipfelWidget.cxx b/src/GipfelWidget.cxx
index 73be7e2..c8a2fae 100644
--- a/src/GipfelWidget.cxx
+++ b/src/GipfelWidget.cxx
@@ -738,7 +738,7 @@ GipfelWidget::get_pixel_bicubic(Fl_Image *img, double x, double y,
for (int iy = 0; iy < 4; iy++) {
for (int ix = 0; ix < 4; ix++) {
- if (get_pixel(img, (int) fl_x + ix, (int) fl_y + iy,
+ if (get_pixel(img, (int) fl_x + ix - 1, (int) fl_y + iy - 1,
&ic[0], &ic[1], &ic[2]) != 0) {
return 1;
}