One can be both impressed and amused at how far image spammers will go in distorting their image payloads in an attempt to slip through spam filtering technologies. If the spammer somehow manages to slip spam through spam filters from time to time, it allows email users to see how badly mangled the images must become. The images are, for all practical purposes, illegible. Take, for instance, this example below:

Seriously, Mr. Spammer, thank you for trying so hard! Perhaps this piece of Internet debris finally arrived in your potential customer’s inbox; too bad it’s more noise than message. In fact, it’s completely useless.
What is that?
Pills what?
A URL, is it?
You really expect anyone to follow through with such bad presentation?
Take a look at the ironic subject line in this particular message:
From: "NNNN...