Ar display apparatus and ar display method

An AR display method for an AR display apparatus with an AR function to superimpose and display image information of augmented reality onto a screen, the screen transmitting an actual view of an external world, the AR display method comprising:

• an image selection step of inputting an image photographed by a camera, selecting and extracting an area of a predetermined object from the image;
• a visibility judgment step of judging visibility of a user with respect to the extracted area of the object on a basis of an index value;
• an AR image generator step of generating an AR image by subjecting the area of the object to image processing for improving the visibility on a basis of the visibility of the area of the object, the AR image being image information on the augmented reality regarding the object;
• and
• an AR display step of superimposing and displaying the AR image onto the screen that transmits the actual view of the external world,
• wherein in the visibility judgment step, it is controlled whether the AR image is to be displayed or not and content of the image processing to be changed in accordance with the visibility.