Image processing device, image processing method, and image processing non-transitory computer readable medium for verifying detectable range of defect image

An image processing method of causing a computer system to:

• set a defect parameter that specifies a display format of a defect image;
• set a background parameter that specifies a display format of a background image;
• superimpose the defect image on the background image with an original image of an inspection subject as the background image and perform image processing for altering the display format of the defect image or a display format of the background image based on the defect parameter and the background parameter, thereby generating a plurality of composite images having different ways of seeing the defect image with respect to the background image;
• verify whether the defect image is detectable from each of the plurality of composite images by altering the defect parameter or the background parameter according to a detectable upper limit value and a detectable lower limit value of a feature amount of the defect image in the plurality of composite images to generate a verifying result with respect to each of the plurality of composite images;
• estimate a detectable range of the defect image based on the verifying result with respect to each of the plurality of composite images;
• and
• display the detectable range.

An image processing non-transitory computer readable medium, storing a program which causes a computer system to:

• set a defect parameter that specifies a display format of a defect image;
• set a background parameter that specifies a display format of a background image;
• superimpose the defect image on the background image with an original image of an inspection subject as the background image and perform image processing for altering the display format of the defect image or a display format of the background image based on the defect parameter and the background parameter, thereby generating a plurality of composite images having different ways of seeing the defect image with respect to the background image;
• verify whether the defect image is detectable from each of the plurality of composite images by altering the defect parameter or the background parameter according to a detectable upper limit value and a detectable lower limit value of a feature amount of the defect image in the plurality of composite images to generate a verifying result with respect to each of the plurality of composite images;
• estimate a detectable range of the defect image based on the verifying result with respect to each of the plurality of composite images;
• and
• displaying the detectable range.