1. A video-scope of an electronic endoscope apparatus, which has an image sensor and which is selectively connectable to plural types of video-processors, comprising: a memory that stores a series of register setting data, said series of register setting data being associated with signal processes for processing image signals read from said image sensor, and corresponding to the plural types of video-processors; a signal processor that is provided in said video-scope and processes the image signals; a video-processor detector that detects type information of a connected video-processor; and a data setter that reads register setting data corresponding to the detected type information from said memory, and that writes the register setting data in a register provided in said signal processor, wherein said signal processor processes the image signals in accordance with the register setting data in said register.