Remove all product images MagentoFrom http://blog.gilesbennett.com/batch-remove-images-from-products-in-magento/

Remove all product images Magento

<?php
require_once 'app/Mage.php';
Mage::app();
Mage::app()->getStore()->setId(Mage_Core_Model_App::ADMIN_STORE_ID);

$products = Mage::getModel('catalog/product')->getCollection();
  //->addAttributeToFilter('entity_id', array('gt' => 14000));

$mediaApi = Mage::getModel("catalog/product_attribute_media_api");

foreach($products as $product) {
	$prodID = $product->getId();
	$_product = Mage::getModel('catalog/product')->load($prodID);
	$items = $mediaApi->items($_product->getId());
	foreach($items as $item) {
		$mediaApi->remove($_product->getId(), $item['file']);
	}
}
?>