Reduction of the number of pixels for image template matching is useful to perform the high speed matching. This paper describes methods to extract partial pixels in a template image for high speed template matching and evaluates the reliabilities of the matching results by the methods. The 15 types of methods to extract partial pixels were applied to the 50 kinds of experimental images and all matching results were evaluated. The filter to detect the maximum strength of the plane edges to the eight directions recorded the higher SN ratios in the matching results. On the other hand, it was found that the conventional method that extracts pixels at a constant interval was not useful for many experimental images.