[gnuastro-commits] master 2c55023: NoiseChisel resetting labeled image in no growth

[Mohammad Akhlaghi]

branch: master
commit 2c55023a7b7390c848020a2348f3ead29670356c
Author: Mohammad Akhlaghi <address@hidden>
Commit: Mohammad Akhlaghi <address@hidden>

    NoiseChisel resetting labeled image in no growth
    
    When there is no growth, the previous commit still didn't reset the labels
    (it was actually corrected after a failed `make check' and the original
    problem was never re-checked after that!). So a check is now added to
    specifically parse over the array and re-set the labels (remove false
    detections) if there is no expansion.
---
 bin/noisechisel/detection.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/bin/noisechisel/detection.c b/bin/noisechisel/detection.c
index b4b5f01..f74332e 100644
--- a/bin/noisechisel/detection.c
+++ b/bin/noisechisel/detection.c
@@ -936,11 +936,18 @@ detection_remove_false_initial(struct noisechiselparams 
*p,
               if( *b==0 && *arr>*e_th )
                 ++p->numexpand;
             }
-          ++b;
-          ++arr;
-          ++e_th;
+          ++b; ++arr; ++e_th;
         }
       while(++l<lf);
+
+      /* If there aren't any pixels to later expand, then reset the labels
+         (remove false detections in the labeled image). */
+      if(p->numexpand==0)
+        {
+          b=workbin->array;
+          l=p->olabel->array;
+          do if(*l!=GAL_BLANK_INT32) *l = newlabels[ *l ]; while(++l<lf);
+        }
     }