lat lon to mollweide projection

I have done the conversion of the coordinates from lat, lon to mollweide x,y using following equations,

X = 2.*Long.*sqrt(2).*R.*cos(Lat)/pi; Y = sqrt(2)*R*sin(Lat);

I have some data for each lat, lon position. And I had used imagesc to present the data. Now after mapping to Mollweide system, I want to present the data. Is there any way I can do it, please be descriptive. :)

Thanks.