Netscape and other common Web Browsers do not do any gamma correction. The most popular graphics formats used on the WWW are GIF and JPEG. Neither of these formats has the capability to store information about the gamma correction that should be used to reproduce the image on the client machine. Web surfers may notice that the same image will appear darker when viewed through Netscape on a Sun or PC than it does when viewed through Netscape on a Macintosh or SGI. This is due to hardware corrections that Apple and SGI have built into their systems.
In the future, we hope that a new graphics format, such as PNG (Portable Network Graphics) will be used to allieviate this problem.