Abstract: For example, provided is an information processing device with which the entire performance can be felt really visually. The information processing device TB according to the present invention includes a processor performing a reception process of receiving input of performance information including pitch information, a first image output process of outputting a first image according to the received performance information, a performance determination process of determining at least any of tonality, a chord type, and a pitch name on the basis of the received performance information, and second image output process of outputting a second image according to a result determined in the performance determination process.

Abstract: For example, provided is an information processing device with which the entire performance can be felt really visually. The information processing device TB according to the present invention includes a processor performing a reception process of receiving input of performance information including pitch information, a first image output process of outputting a first image according to the received performance information, a performance determination process of determining at least any of tonality, a chord type, and a pitch name on the basis of the received performance information, and second image output process of outputting a second image according to a result determined in the performance determination process.

Abstract: A projection apparatus includes a projection unit which forms a picture corresponding to an input image signal and projects the formed picture onto an object, a specifying unit which specifies a region in the picture projected by the projection unit, and a projection control unit which causes the region of the picture projected by the projection unit to be limited according to the region specified by the specifying unit.

Abstract: A projection apparatus comprises a projection unit which forms a picture corresponding to an input image signal and projects the formed picture onto an object, a specifying unit which specifies a region in the picture projected by the projection unit, and a projection control unit which causes the region of the picture projected by the projection unit to be limited according to the region specified by the specifying unit.

Abstract: A plurality of images each indicative of a file to be processed or its items to be processed is displayed on a display. When message information is displayed which is to be transmitted to the user with respect to each of the images, a surrounding image which surrounds the message information is displayed to emphasize and display the message information. When a face image is displayed on the display screen, the message information is displayed in the form of a balloon used frequently in a cartoon or animation as if the message information were uttered from the face image. The displayed shape of the balloon is changed in accordance with attributes of the face image displayed on the display screen so as to harmonize with the face image.