See A Below Image Demo:-
Click on this image and save it but it didn't work.You also can't copy this image URL or Save image as option is also work but the image is not shown when you see at on your desktop.
Steps To Protect Your Images:
<img style="background-image:url(photograph.jpg);"
src="data:image/gif;base64,
R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw=="
width="500" height="250">
Copy this above code and paste it in anywhere in your site and add your image url at (photograph.jpg) section and set your image width and height size manually.
