WordPress at a glance
filter is not described

wp_image_editors filter-hook . WP 3.5.0

Filters the list of image editing library classes.

Usage

add_filter( 'wp_image_editors', 'filter_function_name_5270' );
function filter_function_name_5270( $image_editors ){
	// filter...

	return $image_editors;
}
$image_editors(array)
List of available image editors.
Default: are 'WP_Image_Editor_Imagick', 'WP_Image_Editor_GD'

Where the hook is called

_wp_image_editor_choose()
wp-includes/media.php 2962
$implementations = apply_filters( 'wp_image_editors', array( 'WP_Image_Editor_Imagick', 'WP_Image_Editor_GD' ) );

Where the hook is used (in WP core)

Does not used.