Changeset 10277 for trunk/psphot/src/psphotImageMedian.c

Timestamp:

Nov 29, 2006, 8:05:18 AM (20 years ago)

Author:

rhl

Message:

Handle failures in psImageBackground. This isn't a good dix as it's silent, but it's better than nowt

File:

• trunk/psphot/src/psphotImageMedian.c (modified) (1 diff)

trunk/psphot/src/psphotImageMedian.c

@@ -116 +116 @@
 
             // XXX the value of the upper and lower cuts probably should be studied...
-            psStats *stats = psImageBackground(subset, submask, 0xff, 0.25, 0.75, MAX_SAMPLE_PIXELS, statsOption, rng);
+            psStats *stats = psImageBackground(subset, submask, 0xff, 0.25, 0.75, MAX_SAMPLE_PIXELS,
+                                               statsOption, rng);
+            if (stats == NULL) {
+                stats = psImageBackground(subset, submask, 0xff, 0.25, 0.75, MAX_SAMPLE_PIXELS,
+                                          PS_STAT_ROBUST_MEDIAN, rng);
+                if (stats == NULL) {
+                    psAbort(PS_FILE_LINE, "Failed to estimate background using ROBUST_MEDIAN for "
+                            "(%dx%d, (row0,col0) = (%d,%d)",
+                            subset->numRows, subset->numCols, subset->row0, subset->col0);
+                }
+            }
             if (stats->options & PS_STAT_ROBUST_QUARTILE) {
                 modelData[iy][ix] = stats->robustMedian + SKY_BIAS;