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-rw-r--r--src/blind-gauss-blur.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/blind-gauss-blur.c b/src/blind-gauss-blur.c
index 53eaecb..e22fd2e 100644
--- a/src/blind-gauss-blur.c
+++ b/src/blind-gauss-blur.c
@@ -361,6 +361,8 @@ main(int argc, char *argv[])
eopen_stream(&sigma, argv[0]);
SELECT_PROCESS_FUNCTION(&colour);
+ CHECK_CHANS(&colour, == 3, == (measure_y_only ? 1 : colour.luma_chan));
+ CHECK_N_CHAN(&colour, 4, 4);
echeck_compat(&colour, &sigma);