Provision can be made of a high-speed image processing apparatus that eliminates poor visibility in a dotted configuration or a superimposed portion of two streaks upon removing a false image due to statistical noise. That is, provision can be made of a high-speed image processing apparatus 1 capable of outputting a processed image P4 of high visibility in accordance with a shape of a configuration of a subject appearing in an original image P0 upon removing a false image associated with the statistical noise. A band image noise extract generating unit 17 performs image processing by superimposing a band image, an isotropic blur image P1, and an anisotropic blur image P2 while changing weighting for each pixel in accordance with edge reliability E. Such a construction eliminates poor visibility in the dotted configuration or the superimposed portion of two streaks upon removing the false image in the original image P0.