Endoscope apparatus and control apparatus

An endoscope apparatus comprising:

• an image display controller configured to:
• receive via input terminals a surgical image obtained by a surgical endoscope configured to observe a treatment target organ from outside a lumen of the treatment target organ and a gastrointestinal image obtained by a gastrointestinal endoscope configured to observe the treatment target organ from inside the lumen of the treatment target organ;
• select one of the surgical image and the gastrointestinal image received by the image display controller or select both of the surgical image and the gastrointestinal image for output based on a user operation;
• when both of the surgical image and the gastrointestinal image are selected for output, generate a composite image for performing two-screen display of the surgical image and the gastrointestinal image;
• and
• perform image judgment processing including:
• detecting whether a high-luminance area formed by illumination light radiated at a time of image pickup by the gastrointestinal endoscope exists in the surgical image;
• and
• when detecting that the high-luminance area exists in the surgical image in a state in which the surgical image is displayed in one screen, selecting both of the surgical image and the gastrointestinal image for output and causing a two-screen display based on the composite image to be displayed.