PROBLEM TO BE SOLVED: To provide an endoscope device capable of securing the accuracy of real time measurement of a measurement function by transmitting an optimum image to an image measurement function without increasing a band width or bus width for image transmission and securing the quality of a display image.SOLUTION: An endoscope device 1 has a slender insertion part 2, a CCD 9 for imaging a subject image, an image processing part 22 for performing signal processing of a signal obtained by the CCD 9, an image measurement part 31 for performing image measurement processing, an additional image processing part 34 for performing additional image processing, and an LCD 4 for displaying an output image signal. The image processing part 22 outputs an image signal which is not subjected to gamma correction processing and contour correction processing, the image measurement part 31 performs image measurement processing by using the image signal which is not subjected to the gamma correction processing and the contour correction processing, and the additional image processing part 34 performs additional image processing of the image signal which is not subjected to the gamma correction processing and the contour correction processing.
