If you have 3 images then keep one images visible and hide other two in clickfunnels. Then find the ids of images and also of input elements for dynamic selection of images. Use the below javascript code to in Tracking code footer section. Ofcourse add the script tags..

$(document).ready(function(){

$(".elOrderProductOptinProductName input[value='2632802']").click(function(){
$("#tmp_image-61421").show();
$("#img-30777").hide();
$("#img-27194").hide();
});
 
$(".elOrderProductOptinProductName input[value='2661344']").click(function(){
$("#tmp_image-61421").hide();
$("#img-30777").show();
$("#img-27194").hide();
});
  
$(".elOrderProductOptinProductName input[value='2661350']").click(function(){
$("#tmp_image-61421").hide();
$("#img-30777").hide();
$("#img-27194").show();
});
  
});