Following the tutorial Tutorial for Beginners: 3D Model Reconstruction with Agisoft PhotoScan (
http://www.agisoft.ru/tutorials/photoscan/07/ ), I succeeded in constructing the model. When I exported as VRML and viewed, the color was all right. But, when I export TIFF image, the color looks different as shown in the attached picture

I will appreciate if if someone help me fix this problem. What am I missing?