METHOD FOR OPTIMIZING OBSERVED IMAGE CLASSIFICATION CRITERION AND IMAGE CLASSIFICATION APPARATUS

A first object is to use both ADC (automatic defect classification) and MDC (manual defect classification) and reduce the amount of MDC operation. A second object is to prevent a DOI (defect of interest) from being missed. The first object is achieved by displaying judgment information on a screen. The judgment information is necessary when part of the classification is performed by ADC and part of the classification is performed by MDC and used to judge which classification is used, ADC or MDC. In the display operation, ADC classification results and MDC classification results are also displayed in the form of matrix. Further, a missed DOI rate is calculated for each classification threshold used in the defect classification and displayed on the screen.