| ERROR | empty or null attribute string |
| CAUSE | An empty or null attributes string was passed to the image matching operators. |
| ACTION | Refer to the Oracle Multimedia documentation for a description of the correct usage and syntax of the attributes string. |
| ERROR | empty or null attribute string |
| CAUSE | An empty or null attributes string was passed to the image matching operators. |
| ACTION | Refer to the Oracle Multimedia documentation for a description of the correct usage and syntax of the attributes string. |