"...the behaviour of most present day humans remains moderated by magical thinking-type mental processes (lack of integration between the left prefrontal cortical areas and memory), underwritten by sub-optimal cause and effect perception."

Robert G. Bednarik, An aetiology of hominin behaviour, Homo, 2012

Thursday, 10 December 2015

Reflectance Transformation Imaging - Update 2

Finally! The marbles arrived, sphere detection worked and I have created my first RTI....

Some snapshots

Using the HSS Fitter with specular enhancement

And then with the PTM algorithm....

Static Multi Light

Coefficient Unsharp Masking

Image Unsharp Masking

I've uploaded a couple of ptm files to my website (beware they are large files) for anyone interested in seeing the end result. Additionally the first eight or so pictures were rendered from PTMs and then cut out in Adobe Photoshop.

I have also reduced the overall processing time by using only PTMfitter in conjunction with a single 'lp' (light profile) file. I am quietly pleased with the dome - it does everything I wanted it to do.

Finally, a photo of the finished dome - with protective covering.