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image_size_names_choose filter-hook . WP 3.3.0

Filters the names and labels of the default image sizes.

Usage

add_filter( 'image_size_names_choose', 'filter_function_name_4521' );
function filter_function_name_4521( $size_names ){
	// filter...

	return $size_names;
}
$size_names(array)
Array of image sizes and their names.
Default: values include 'Thumbnail', 'Medium', 'Large', 'Full Size'

Where the hook is called

image_size_input_fields()
image_size_names_choose
wp_prepare_attachment_for_js()
image_size_names_choose
wp_print_media_templates()
image_size_names_choose
Custom_Background::wp_set_background_image()
image_size_names_choose
wp-admin/includes/media.php 1073-1081 
$size_names = apply_filters(
	'image_size_names_choose',
	array(
		'thumbnail' => __( 'Thumbnail' ),
		'medium'    => __( 'Medium' ),
		'large'     => __( 'Large' ),
		'full'      => __( 'Full Size' ),
	)
);
wp-includes/media.php 3301-3309 
$possible_sizes = apply_filters(
	'image_size_names_choose',
	array(
		'thumbnail' => __( 'Thumbnail' ),
		'medium'    => __( 'Medium' ),
		'large'     => __( 'Large' ),
		'full'      => __( 'Full Size' ),
	)
);
wp-includes/media-template.php 737-745 
$sizes = apply_filters(
	'image_size_names_choose',
	array(
		'thumbnail' => __( 'Thumbnail' ),
		'medium'    => __( 'Medium' ),
		'large'     => __( 'Large' ),
		'full'      => __( 'Full Size' ),
	)
);
wp-includes/media-template.php 816-824 
$size_names = apply_filters(
	'image_size_names_choose',
	array(
		'thumbnail' => __( 'Thumbnail' ),
		'medium'    => __( 'Medium' ),
		'large'     => __( 'Large' ),
		'full'      => __( 'Full Size' ),
	)
);
wp-includes/media-template.php 996-1004 
$sizes = apply_filters(
	'image_size_names_choose',
	array(
		'thumbnail' => __( 'Thumbnail' ),
		'medium'    => __( 'Medium' ),
		'large'     => __( 'Large' ),
		'full'      => __( 'Full Size' ),
	)
);
wp-admin/custom-background.php 583-591 
apply_filters(
	'image_size_names_choose',
	array(
		'thumbnail' => __( 'Thumbnail' ),
		'medium'    => __( 'Medium' ),
		'large'     => __( 'Large' ),
		'full'      => __( 'Full Size' ),
	)
)
wp-admin/edit-form-blocks.php 207-215 
$image_size_names = apply_filters(
	'image_size_names_choose',
	array(
		'thumbnail' => __( 'Thumbnail' ),
		'medium'    => __( 'Medium' ),
		'large'     => __( 'Large' ),
		'full'      => __( 'Full Size' ),
	)
);

Where the hook is used (in WP core)

wp-admin/includes/ajax-actions.php 3620 
add_filter( 'image_size_names_choose', array( $wp_site_icon, 'additional_sizes' ) );
wp-admin/includes/ajax-actions.php 3635 
add_filter( 'image_size_names_choose', array( $wp_site_icon, 'additional_sizes' ) );