Hi Le Bucheron.
The LEVELS - dialogue in an image manipulation application lets You control the different brightness levels in an image. ( see attached image )
This way You can filter out the gray fills as I did in the BMW image for example.
Now if some of You don' t have a decent image man. app. and don' t want to spend lots of money, You can try to get the March issue of the excellent British Magazine Computer Arts.
On its cover disk is the magnificent full version of CANVAS 7.
This is an application that can do both VECTOR and BITMAP illustration ( think of Corel Draw, but - believe me - more powerful ), so it is ideal to create BLUEPRINTS in it too...
This is the application I have been using over the past 5 years to do all my vector- and bitmap illustration ( I am still on version 7 too, since it is very stable and so I didn' t upgrade it yet )
Have a look here for more info on the mag :
http://www.computerarts.co.uk/magazi...bsectionid=770
Both Mac and Windows versions are included on the cover disk + thousands of high quality fonts by URW !
( the Mac version works in OS 8.5 up to 9.2.2 or in Classic, Windows version on 98, 2000 and xp )
More info about Canvas can be found here:
http://www.deneba.com
The second image shows an illustration I made recently, using ONLY the vector drawing tools in Canvas.
So what are You guys waiting for ?
Peter