SINTEF are together with Norwegian Seafood Federation’s Bacalao Forum and Matforsk developing a system for objective visual inspection of split cod. The features to be detected are the over-all color, liver stains, blood stains, deformation and ruptures/splitting in the cod meat. Together with the already made water content measurement prototype this will make up a fully automatic grading system for split cod.

By using spectral imaging we have optimized the wavelengths used for best characterizing and differentiation of the visual parameters the manual grader are using when characterizing spilt cod. Based on these wavelengths or parameters we have made an automatic classification of all pixels in a spectral image of the fish.

The results so far are promising and a prototype of the system is expected to be presented during spring 2005.

This work has been supported by the Fishery and Aquaculture Industry Research Fund (FHF).