IMAGE DISPLAY DEVICE, IMAGE CAPTURE DEVICE, IMAGE DISPLAY SYSTEM, IMAGE DISPLAY METHOD, AND IMAGE COMBINING DEVICE

In an automatic tracking process using an aim color, a technique of allowing an observer to confirm the aim color set in the imaging device with ease is provided. An image display device using this technique has a display control unit 211 configured to input video signals obtained as a result of a tracking process using an aim color and color information showing the aim color, the video signals and the color information being generated from an imaging device, and also configured to combine an image based on the video signals with an image based on the color information, and a tracked object indicating unit 212 configured to accept an indication against an object to be tracked in the tracking process, from an outside.