One obvious "solution" to chip dirt is to do the following...
In software, eg: Photoshop 1) Make a mask which identifies all the known chip dirt in a clear image. This could be done by photographing a grey card, or perhaps using some in-camera method which then applies an edge detection algorithm. The mask could be used once or for multiple methods. 2) For each identified dirt particle in the mask apply an automatic healing brush or "clone" operation from a source image area displaced by a small number of pixels from the identified dirt area back to the source image. 3) Highlight all alterations on screen to show what the changes are, could be achieved by toggling a layer on and off so that the photographer could manually fix any areas which are incorrectly fixed. (Possible elaboration to allow selection of specific areas which are fixed). It can be seen that there are many possible variations on the idea of re-using a mask which identifies the areas of the image where chip dirt is present to automatically clone image areas to retouch the image. I am posting this in a public forum so that this obvious idea is not patented by some venal corporate organisation in the future :-) Note that if Photoshop allowed running paint or clone operations when running actions then this could be achieved through automation in Photoshop. I used to use "Corel" Painter despite its complex UI to do photo retouching. I think they invented the idea of cloning. Actions in painter used to allow all operations to be automated, so it might be possible to build scripts in Painter to do this automatically. Yours anti-patently Paul Freeman www.architecturalimages.co.uk -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Andreas Heumann Sent: 16 June 2003 20:24 To: [EMAIL PROTECTED] Subject: Re: [PRODIG] Canon 1Ds chip dirt No, They are called "sticky Fixers" (Double sided Foam pads to hang bits onto bathroom tiles) Re-Order Code 3798. - I was worried at the beginning and reduced the stickiness by pressing it a few times against clean glass. During this hot weather you might want to do that. 3M stickers work too for location work but I have not tried that. Never rub, of course. Good luck and beat the dust, Andreas > Andreas, are these just normal bits of sellotape? If this works it > sounds a lot simpler than most of the advice on the web. Is it not > risky? > > all the best > > David Purdie > > =============================================================== > GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE > =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE -- Message scanned for viruses and dangerous content by <http://www.newnet.co.uk/av/> and believed to be clean -- ____________________________________________________ Message scanned for viruses and dangerous content by <http://www.newnet.co.uk/av/> and believed to be clean =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
