I have handler, which have URL like this
wis width for image
Cache-Control public Content-Length 9788 Content-Type image/jpeg Date Sun, 05 Jan 2014 10:24:41 GMT Expires Sun, 12 Jan 2014 10:24:42 GMT Server Microsoft-IIS/7.5 X-AspNet-Version 4.0.30319 X-Powered-By ASP.NET
But Google doesn't want to append these images in its index base. How can I improve accessibility these images for Google?