Re: Scanned Image Processing
"Cheung Koon Tung, Kent" wrote: 1. Dithering when the publication is produced 2. Anti-aliasing effect when the publication is produced 3. The "texture" of the publication paper I want to do automatic or semi-automatic pre-processing with GIMP so that the above three effects can be removed before my image analysis algorithm is applied. You might want to try the non-linear filter (nlfilt). It is designed to (on some settings) smooth out small variations in colour, while not blurring edges between different colours. -- David Hodson -- [EMAIL PROTECTED] -- this night wounds time
Wideangle distortion plugin
Following a suggestion by Lars Clausen, and with his suggestions and improvements, I've written a plugin which corrects (or creates) the barrel (or pincushion) distortion common to wideangle lenses. It's designed to let you store and reuse corrections for specific lenses (as well as just play). For now, it can be downloaded directly at: http://www.ozemail.com.au/~hodsond/wideangleFeb02.tgz Grab it, make and make install (or make userinstall). Comments etc. are welcome. -- David Hodson -- [EMAIL PROTECTED] -- this night wounds time
Re: [Q:] S simple q wrt scaling
"Ulrich G. Wortmann" wrote: I'm trying to rescale an image (say from 1000 pixel to 100 pixel to use a logo on the web). That works ok. However the sclaing process does only simple resampling of the imga, which results in a rather jagged look on the scaled image. There muts be away to get a smooth scaling (say by bilinear filtering), but I can't see it (maybe it is too obvious?) If you're scaling an image down by more than a small amount, blur it first. Use a gaussian filter - I'd start with a radius of half the scale factor and adjust until the result looks good. -- David Hodson -- [EMAIL PROTECTED] -- this night wounds time
Re: some questions
"Guillermo S. Romero / Familia Romero" wrote: [EMAIL PROTECTED] (2000-08-03 at 1718.00 +0200): *) Do exist a soft/plug-in to help the creation of the script ? (like in Ph0t0sh0p where we can record some actions and play them again) Nope yet. Or maybe, it is called text editor with help for the languaje you choose (scheme, perl or python). ;] Gimpeon (http://www.ozemail.com.au/~hodsond/gimpeon.html) is a plugin which lets you apply one or more filters to a sequence of images. It's still a very early release, but it might be useful for people who want to do batch processing but don't want to learn a scripting language. -- David Hodson -- [EMAIL PROTECTED] -- this night wounds time
