Figure 5. Equivalency between Image-Pro Plus and Photoshop based on file size.  While Image-Pro Plus 85% and Photoshop 0 compressions contain some image compression artifact, these rat liver images produce equivalent measurements.  The ability to measure nuclear features were not impacted until Image-Pro Plus compression strength above Image-Pro Plus 90% was used. Image-Pro Plus=IPP Adobe Photoshop=APS