I use a plug-in to Photoshop and I've always assumed that it treats the centre of the image as the effective origin from which it computes the corrections. I've used it mainly to correct the barrel distortion at the wide end of my CP775 images, but I guess it could be used on fisheye images as well, but before cutting the image in half.
You can set the correction parameters individually in the software I use. Somewhat trial and error for starters. (See www.dpreview.com // glossary // for more info.) (My inbox has 3 of your messages so they're getting through somewhere!) Malcolm Milton Keynes, UK ----- Original Message ----- From: Huang Shao Hui <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, January 08, 2003 7:07 AM Subject: EOS OT: Software to correct Image distortion > Hi All: > I've sent a mail regarding the software to correct > distorted image, but it doesn't seem to get through... > I'll try to ask again. Can anyone explain how does > the software work? Must the image to be corrected > symmetrical (spell)? If I have an image with a > fisheye lens, and cut it in half, would the software > correct the 'suppose to be undistorted' center, to > pin-cushion distortion? How does the software know > the degree of correction required? Or, it's just some > user adjustable value? > Ok, so many questions at one go. Thanks in > advance. * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
