Get post category image

I’m trying to show the post category image, but it’s not showing. Any idea what I did wrong?:

<?php
	$args = array('post_type' => 'post','cat' => '','showposts' => 2,); 	

	$categories = get_categories();
			foreach ($categories as $category)
			{
    			$term_id = $category->term_id;
    			$image = category_image_src( array('term_id'=>$term_id) , false );
			}
	?>

	<?php $recent = new WP_Query($args); while($recent->have_posts()) : $recent->the_post();?>

	<li>
		<img src="<?php echo $image; ?>" alt="<?php $alt = get_the_category(); echo $alt[0]->cat_name; ?>" class="align-left">
		<h2 class="entry-title" itemprop="headline"><a class="news-title" rel="bookmark" href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h2>
	</li>
	<?php endwhile; ?>

https://www.ads-software.com/plugins/wpcustom-category-image/