ajayver

This plugin adds a small counter to each image in your posts. It is convenient if you have 10 or more images in each post and people want to mention some of them in their comments. 
Now they can easily see the number of the image. 
The plugin doesn’t touch you database and doesn’t change your posts content it works as a filter “on the fly”.

Image Counter

This plugin adds a small counter to each image in your posts.

Julio Potier

IMPORTANT: 3.0 supports cahing plugins!
When someone visits a post or page (not a search engine bot crawler), it adds 1 count views to its counter.
But this is not all, the counters are split in days, weeks, months, years, so you can see stats and display any stat day.
Then you can display this views with the provided shortcode [post_view] or use the widget to display a top (or less) posts list.
You can also use [most_view] in a post/page to get a top (or less) post most viewed.
If you were using another kind of plugin before and don’t want to lose your counters, this plugin can keep them!

Post Views Count (Support caching plugins!)

This plugin counts views for post and pages, shortcodes [post_view] & [most_view] are available, also a widget "Most Viewed Posts" is.

Image Counter vs Post Views Count (Support caching plugins!)