Image processing apparatus, image processing method and program

An image processing apparatus comprising:

• a switcher;
• a list storage unit that stores an element choice list designating a plurality of elements among elements included in computer graphics (CG) description data;
• and
• an image generating unit that generates a CG image based on the CG description data,
• wherein a specific input bus among a plurality of input buses of the switcher receives an output of the image generating unit,
• a button array of an input selection manipulating unit of the switcher includes a plurality of buttons that commonly select the specific input bus and correspond to the plurality of elements designated by the element choice list, respectively, and
• when any one of the plurality of buttons is pressed, the image generating unit excludes one or more elements other than an element corresponding to the pressed button from among the elements designated by the element choice list stored in the list storage unit from the CG description data, and generates a CG image.