Index: core/units/helpers/image_helper.php
===================================================================
--- core/units/helpers/image_helper.php
+++ core/units/helpers/image_helper.php
@@ -126,6 +126,9 @@
 			if (is_numeric($max_width)) {
 				$params['max_width'] = $max_width;
 				$params['max_height'] = $max_height;
+				$params['quality'] = 100;
+				$params['output_format'] = 'auto';
+				$params['orientation'] = 'manual';
 			}
 			else {
 				$params = $this->parseFormat($max_width);