diff --git wp-includes/class-wp-image-editor-gd.php wp-includes/class-wp-image-editor-gd.php
index 92dd287..82626a0 100644
--- wp-includes/class-wp-image-editor-gd.php
+++ wp-includes/class-wp-image-editor-gd.php
@@ -176,7 +176,7 @@ class WP_Image_Editor_GD extends WP_Image_Editor {
 	 * @since 3.5.0
 	 * @access public
 	 *
-	 * @param array $sizes { {width, height}, ... }
+	 * @param array $sizes { {'width'=>int, 'height'=>int, 'crop'=>bool}, ... }
 	 * @return array
 	 */
 	public function multi_resize( $sizes ) {
diff --git wp-includes/class-wp-image-editor-imagick.php wp-includes/class-wp-image-editor-imagick.php
index 02dfe03..a9982cd 100644
--- wp-includes/class-wp-image-editor-imagick.php
+++ wp-includes/class-wp-image-editor-imagick.php
@@ -248,7 +248,7 @@ class WP_Image_Editor_Imagick extends WP_Image_Editor {
 	 * @since 3.5.0
 	 * @access public
 	 *
-	 * @param array $sizes
+	 * @param array $sizes { {'width'=>int, 'height'=>int, 'crop'=>bool}, ... }
 	 * @return array
 	 */
 	public function multi_resize( $sizes ) {
diff --git wp-includes/class-wp-image-editor.php wp-includes/class-wp-image-editor.php
index dd4c678..481b2c1 100644
--- wp-includes/class-wp-image-editor.php
+++ wp-includes/class-wp-image-editor.php
@@ -101,7 +101,7 @@ abstract class WP_Image_Editor {
 	 * @access public
 	 * @abstract
 	 *
-	 * @param array $sizes
+	 * @param array $sizes { {'width'=>int, 'height'=>int, 'crop'=>bool}, ... }
 	 * @return array
 	 */
 	abstract public function multi_resize( $sizes );
diff --git wp-includes/media.php wp-includes/media.php
index d2ae633..cebdae7 100644
--- wp-includes/media.php
+++ wp-includes/media.php
@@ -294,7 +294,7 @@ function wp_constrain_dimensions( $current_width, $current_height, $max_width=0,
 }
 
 /**
- * Retrieve calculated resized dimensions for use in imagecopyresampled().
+ * Retrieve calculated resized dimensions for use in WP_Image_Editor.
  *
  * Calculate dimensions and coordinates for a resized image that fits within a
  * specified width and height. If $crop is true, the largest matching central