Changeset 5717 for trunk/pois/src/poisStamp.c

Timestamp:

Dec 6, 2005, 6:43:52 PM (21 years ago)

Author:

Paul Price

Message:

Importing current working PAP version (many bug fixes since this branch) straight on top of this version, and tidying up a bit

File:

• trunk/pois/src/poisStamp.c (modified) (2 diffs)

trunk/pois/src/poisStamp.c

@@ -11 +11 @@
     stamp->matrix = NULL;
     stamp->vector = NULL;
-    psMemSetDeallocator(stamp, (psFreeFcn)poisStampFree);
+    psMemSetDeallocator(stamp, (psFreeFunc)poisStampFree);
 
     return stamp;
@@ -18 +18 @@
 void poisStampFree(poisStamp *stamp)
 {
-    psFree(stamp->matrix);
-    psFree(stamp->vector);
+    if (stamp->matrix) {
+        psFree(stamp->matrix);
+    }
+    if (stamp->vector) {
+        psFree(stamp->vector);
+    }
+    psFree(stamp);
 }
+
+
+// Return true if the stamp is OK
+bool poisCheckStamp(const psImage *image, // Image to check for threshold
+                    const psImage *mask, // Mask to check for bad pixels
+                    int x, int y,       // Pixel coordinates
+                    const poisConfig *config // Configuration
+    )
+{
+    if (x < config->footprint + config->xKernel ||
+        y < config->footprint + config->yKernel ||
+        x > config->xImage - config->footprint - config->xKernel ||
+        y > config->yImage - config->footprint - config->yKernel ||
+        image->data.F32[y][x] < config->threshold) {
+        psTrace("pois.checkStamp", 9, "Rejecting stamp at %d,%d (border/threshold)\n", x, y);
+        return false;
+    }
+
+    // Check the footprint
+    bool ok = true;                     // Is the footprint OK?
+    int footprint = config->footprint;  // Footprint size
+    for (int v = y - footprint; v <= y + footprint && ok; v++) {
+        for (int u = x - footprint; u <= x + footprint && ok; u++) {
+            if (mask->data.U8[v][u] &
+                (POIS_MASK_BAD | POIS_MASK_NEAR_BAD | POIS_MASK_STAMP)) {
+                psTrace("pois.checkStamp", 9, "Rejecting stamp at %d,%d (bad footprint)\n", x, y);
+                ok = false;
+            }
+        }
+    }
+    
+    return ok;
+}
+