Changeset 4215 for trunk/psphot/src/psphot-utils.c

Timestamp:

Jun 11, 2005, 5:43:47 AM (21 years ago)

Author:

eugene

Message:

adding mask & noise images

File:

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

trunk/psphot/src/psphot-utils.c

@@ -160 +160 @@
 }
 
+// mask the area contained by the region
+void psImageMaskRegion (psImage *image, psRegion *region, int maskValue) {
+
+    for (int iy = 0; iy < image->numRows; iy++) {
+        for (int ix = 0; ix < image->numCols; ix++) {
+            if (ix + image->col0 <  region->x0) continue;
+            if (ix + image->col0 >= region->x1) continue;
+            if (iy + image->row0 <  region->y0) continue;
+            if (iy + image->row0 >= region->y1) continue;
+            image->data.U8[iy][ix] |= maskValue;
+        }
+    }
+}
+
+// mask the area not contained by the region
+void psImageKeepRegion (psImage *image, psRegion *region, int maskValue) {
+
+    for (int iy = 0; iy < image->numRows; iy++) {
+        for (int ix = 0; ix < image->numCols; ix++) {
+            if (ix + image->col0 <  region->x0) goto maskit;
+            if (ix + image->col0 >= region->x1) goto maskit;
+            if (iy + image->row0 <  region->y0) goto maskit;
+            if (iy + image->row0 >= region->y1) goto maskit;
+            continue;
+        maskit:
+            image->data.U8[iy][ix] |= maskValue;
+        }
+    }
+}
+
 // create a subset of sources for the PS_SOURCE_PSFSTAR entries
 // XXX deprecated