I have found this special Photoshop plugin made specifically for this kind of Droste effects and that includes ALL the multiple and complex possible combinations that this technique offers,
This offers MANY controls and many options to configure the effect and distorsion IN MANY possible ways and have lots of possible combinations.
AND THE BEST FOR ME IS THAT ALL IS DONE IN REALTIME (at least if you use the GPU acceleration option checked)
You will find it here and it is FREE to use and download from the Adobe Labs
and this is the official web of the author -->http://www.subblue.com/projects/droste
And this are some artistic examples made by Subblue in his Flickr account
These are the steps you should follow for best results:
Set the size to match the source image.
Adjust the centerShift so that the spiral is centered on the area you want to repeat.
If the source image is a 24-bit PNG with a transparent centre section (like a picture frame) then set transparentInside to 1.
If the image has a transparent outside (like a flower cut-out) set transparentOutside to 1
Adjust the innerRadius in combination with tweaking the centerShift values until the repeated section aligns nicely.
Adjust the center parameter to frame the overall image
Here I have this very good tutorial that explains very well how to use this Droste Spiral Effect plugin in Photoshop
Also there is a interesting video tutorial on You Tube
DROSTE EFFECT - 32 STUNNING PHOTOSHOP ILLUSIONS
Please do not miss These examples of creative designs of what can be done --->http://blog.pokkisam...oshop-illusions
Edited by SpaceRay, 28 February 2012 - 04:14 PM.