warping of density plots

*To*: mathgroup at yoda.physics.unc.edu*Subject*: warping of density plots*From*: Ivan Vesely <vesely at next.heart.rri.uwo.ca>*Date*: Tue, 15 Dec 92 15:25:16 EST

I'd like to be able to average images that consist of the density plots. Imagine a bunch of density plots (x-ray images for example) that can be generated by Mathematica by plotting a 2 x 2 array. Those density plots contain an object (a bone for example) and I want to average a whole bunch of images to get the spatial density distribution of the "average bone". What I really need is some good image warping software that will allow me to play with the images and get them all to look the same size and shape. Then I can cut the area of interest out of all the images, and simply average the pixels numerically. I could do all this fairly easily if I had the image warping software. I use a NeXT, so manipulating images is no big deal. However, the sofware is expensive and no demo exists for me to try it out. I am therefore hesitant in buying it. However, I did hear that Mathematica may be able to do something analogous to image warping. Is this possible? Does some Mathematica package exist that will do this? Please respond by e-mail. --- Ivan Vesely, Electrical Engineering and Medical Biophysics University of Western Ontario, vesely at next.heart.rri.uwo.ca