Image Resizing - Webserver Effect

[cbjroms]

I have an application (VB.Net2) which takes an image (JPEG) file and resizes it.

I have tested this application by putting it into a local version of my website (which also contains local copy of my image library) hosted on my PC. The images shown on the web pages are crisp and clear.

But when I put this same version of the website (including image library) onto my remote webserver, the images shown on the served web pages are markedly pixallated (even in areas that are normally flat colour). I have downloaed the images from the image library to check them on my PC and they are fine.

Why should the website produce crsip & clear images when hosted locally yet grainy/pixallated images when hosted on a remote web server?

Thanks in anticipation.

Chris

 

[Crafty]

Have you added any shadow effects or frames?
I know that when I send mail from off2007 the image in my signature looks like that when people from older versions view the mail. I think it has to do with the rendering component of these special effects like shadows and frames.