Getting applets to work is not for the faint of heart.  Although once you have got your browser to load them then it is easy to use DStretch.  Some issues I have found:

On some Macs Safari seems to be unable to load applets. 
On some Macs Firefox can hang when doing DStretch enhancements.  My guess is that this is due to having an old version of Java.  Try to get the latest version.

If you want to use the applet on your own files you may need to increase applet memory.  See the first applet page for more help on this subject.

	Click on the image to open an ImageJ applet with DStretch plugin.  The applet can open sample images from many different rock art sites.
	Click on the image to see my photos from Cueva El Dipugon.  You can use the DStretch ImageJ applet to enhance the colorful paintings yourself.