In the fish industry, the fish fillets are checked for the occurrence of Anisakid larvae by using candling systems. The fillet is trans-illuminated and this operation is tedious and exhausting for the human eye. In the frame of the Fish-Parasites action, the partners (PFI Nouvelles Vagues, LASMEA CNRS Clermont-Ferrand et ARBOR Technologies Landévant) aimed at developing a prototype allowing the more systematic larvae detection thanks to a system of computer assisted-intelligent vision.