Thanks for replay Mark.
I am already gone for Xmas and don't have access to broadband Internet
connection to be able to upload the images on a server. I'll still try to
work with showcost and the images I have and as soon as I am back, I'll
start a new thread.
For now thanks for help, marry Xmas and all the best in 2005. And of
course I wish the same to everybody on the list.
On Mon, 20 Dec 2004, Mark Jenkinson wrote:
> I'm afraid that I can't replicate your problems here.
> The showcost schedule gives me the same values as running
> the registration in verbose mode.
> Can you put the images somewhere for me so that I can check
> if it has something to do with them?
> As for the absolute cost function value - there are several
> practical issues of constructing histograms, smoothing images,
> correcting for voxels at the edge of the field of view, etc
> which probably change the values slightly. All that is important
> for the registration to work is that the cost is monotonic in
> measuring good/bad transformations. These practical additions
> are important for getting things to work well, and they are
> probably why the values are not the perfect theoretical values.
> All the best,