Skip images already within pixel limit

Check pixel count before processing and skip files that are already at or below 8MP, avoiding unnecessary re-compression.

images_resize.sh

@@ -7,8 +7,17 @@
 
 echo "Resizing large JPGs in $(pwd)"
 
+MAX_PIXELS=8000000
+
 find . -regextype posix-egrep -regex ".*\.(jpg|JPG|JPEG|jpeg)$" -print0 | while IFS= read -r -d '' f
 do
+    # Check pixel count before processing
+    PIXELS=$(~/Applications/magick identify -format "%[fx:w*h]" "$f" 2>/dev/null)
+    if [[ -n "$PIXELS" && "$PIXELS" -le "$MAX_PIXELS" ]]; then
+        echo "Skipping $f: ${PIXELS}px already within limit"
+        continue
+    fi
+
     # Get file size before resizing
     SIZE_BEFORE=$(stat -f%z "$f" 2>/dev/null || stat -c%s "$f" 2>/dev/null)