Re: another image problem

*To*: mathgroup at smc.vnet.net*Subject*: [mg56986] Re: another image problem*From*: "Jens-Peer Kuska" <kuska at informatik.uni-leipzig.de>*Date*: Thu, 12 May 2005 02:32:19 -0400 (EDT)*Organization*: Uni Leipzig*References*: <d5sknt$o1g$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Hi, mak a interpolation function form the data, NIntegrate/Integrate it and search the intersections of the interpolation functions. Regards Jens "sean_incali" <sean_incali at yahoo.com> schrieb im Newsbeitrag news:d5sknt$o1g$1 at smc.vnet.net... > Let's say you have a picture of two overlapping > graphs. > > You don't have the equations that generated > them. but you know the > graphs is relatively accurate. for example, > > http://pg.photos.yahoo.com/ph/sean_incali/detail?.dir=/9264&.dnm=191b.jpg&.src=ph > > Now... let's say you wanted to find the area > under curve for both > curves (blue and green) between certain x > values... > > for example, 425nm <= x <= 475nm , and then > 500nm <= x <= 550nm, and > then 525nm <= x <= 575nm. > > is this doable in Mathematica? > > thanks In advance for any thoughts. > > sean >