Scale quality depending on image size

Author: annietllnd

tools/resize_images.sh

@@ -97,10 +97,17 @@ process_images() {
                 echo "DRY RUN: Would remove $img"
                 echo "DRY RUN: Would update markdown references"
             else
-                echo "Optimizing $img (${kbsize}KB, ${width}px)"
-                
+                # Set quality dynamically based on file size
+                if [ "$kbsize" -ge 15000 ]; then           # ≥ 15MB
+                    quality=30
+                elif [ "$kbsize" -ge 5000 ]; then          # 5–15MB
+                    quality=50
+                else                                            # < 5MB
+                    quality=75
+                fi
+                echo "Optimizing $img (${kbsize}KB, ${width}px), quality=$quality"
                 # Resize and convert to WebP. If error occurs, capture it and exit.
-                error=$(magick "$img" -resize 1280x\> -quality 85 "$webp_img" 2>&1)
+                error=$(magick "$img" -resize 1280x\> -quality $quality "$webp_img" 2>&1)
                 convert_status=$?
                 if [ $convert_status -ne 0 ]; then
                     echo "⚠️ Error converting $img to WebP format."