Predicting blocking effects in the spatial domain using a learning approach

Aladine Chetouani (1) , Ghiles Mostafaoui (1) , Azeddine Beghdadi (1)

1 L2TI - Laboratoire de Traitement et Transport de l'Information

A new method for predicting blocking effect in the spatial domain is proposed. This method aims at estimating the appearance of blocking artefacts in the original image prior to compression for a given bit rate and a given compression technique. The basic idea is to use a training process in order to compute a visibility measure. A weighting function of the blocking effects is then derived from this training process performed on a database. The proposed method is objectively and subjectively evaluated on various actual images. The obtained results confirm the efficiency of the proposed method in predicting blocking effect.

Mots clés: blocking effect; prédiction; compression

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Aladine Chetouani, Ghiles Mostafaoui, Azeddine Beghdadi. Predicting blocking effects in the spatial domain using a learning approach. ICETE/SIGMAP08, Jul 2008, porto, Portugal. ⟨hal-00362792v2⟩