抄録
Cracks and spalling of concrete are the effects that can be seen on a reinforced concrete structure giving a warning of the occurrence of damage. An image of these effects can be taken and analyzed to estimate the damage of the structure. In this analysis image processing is necessary to extract crack data effective to characterize the damage of a particular type of structure. Characterization of geometrical properties of cracks is important in the preparation of digital crack data. In this study a set of indices to characterize the geometrical properties of cracks are examined for various RC structures.
