1. A noise eliminating device, comprising: a noise eliminating mechanism to eliminate an isolated noise in an image being photographed, the noise eliminating mechanism including a noise pixel detection mechanism to detect a noise pixel by scanning the image, wherein the noise pixel is determined to be noise based on a comparison of a first difference with a first threshold and a comparison of a second difference with a second threshold, the first difference being a difference between a level of the noise pixel and the level of a pixel different from the noise pixel and located in a predetermined area of the image, and the second difference being a difference between the level of the pixel located in the predetermined area of the image and the level of another pixel different from the noise pixel and located in the predetermined area of the image; and a pixel correction mechanism to correct the level of the detected noise pixel based on the level of the pixel located in the predetermined area of the image with respect to the noise pixel.