duplicate product image issue magento 2

duplicate product image issue magento 2 .php

<?php
require '../app/bootstrap.php';

$params = $_SERVER;

$bootstrap = Bootstrap::create(BP, $params);

$obj = $bootstrap->getObjectManager();
$state = $obj->get('Magento\Framework\App\State');
$state->setAreaCode('frontend');

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();

$fileSystem = $objectManager->create('\Magento\Framework\Filesystem');
$mediaPath = $fileSystem->getDirectoryRead(\Magento\Framework\App\Filesystem\DirectoryList::MEDIA)->getAbsolutePath();
echo $mediaPath;
$path = $mediaPath . DIRECTORY_SEPARATOR . "catalog" . DIRECTORY_SEPARATOR . "product";
$product_folder = array();
$di = new RecursiveDirectoryIterator($path);
foreach (new RecursiveIteratorIterator($di) as $filename => $file) {
	//echo $filename . ' - ' . $file->getSize() . ' bytes <br/>';

	if (!is_dir($filename)) {
		$folder_file = str_replace($mediaPath, '', $filename);
		$folder_file = str_replace('\\', '/', $folder_file);
		$product_folder[] = $folder_file;
	}
}

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();

$categoryFactory = $objectManager->get('\Magento\Catalog\Model\CategoryFactory');
$categoryHelper = $objectManager->get('\Magento\Catalog\Helper\Category');
$categoryRepository = $objectManager->get('\Magento\Catalog\Model\CategoryRepository');

$categoryId = 41; // YOUR CATEGORY ID
$category = $categoryFactory->create()->load($categoryId);

$categoryProducts = $category->getProductCollection()
	->addAttributeToSelect('*');
$images_array = array();

foreach ($categoryProducts as $product) {
	//print_r($product->getData());
	// printing category name and url
	//echo $product->getName() . ' - ' . $product->getProductUrl() . '<br />';
	$objectManager->get("Magento\Catalog\Model\Product\Gallery\ReadHandler")->execute($product);
	$imageProcessor = $objectManager->create('\Magento\Catalog\Model\Product\Gallery\Processor');
	$images = $product->getMediaGalleryImages();

	foreach ($images as $child) {
		$file_update = str_replace($mediaPath, "", $child->getPath());
		$images_array[] = "/" . $file_update;
	}
}
echo "<pre>";
print_r($images_array);
print_r($product_folder);
echo "</pre>";

foreach ($product_folder as $file) {
	if (!in_array($file, $images_array)) {
		if($_GET['action']=="run"){
			unlink($mediaPath . $file);
		}
		echo "<br/>";
		echo " Not found " . $file;
		echo "<br/>";
	} else {
		echo "<br/>";
		echo "--found " . $file;
		echo "<br/>";
	}
}

die("---27--");
?>