Abstract: A system for determination of the volume of a stack of logs comprises digital image acquisition of a stack end with a known reference dimension, image display and image recognition for determination of the total volume of timber. Volume is determined by image analysis routines for detecting the end of each log in the digital image and overlying circles substantially coincident with each detected log end on the digital image. An operator may manually adjust or vary the circles on an interactive screen. The areas of each overlaid circle is calculated and total volume is determined factoring in a standardized log length and stratification data entered by the operator.