As the direction of edges in images is not taken into account, the original geometric nonlinear diffusion filter (GNLDF) is not in the best state for images denoising, which diffuses only in the horizontal and vertical directions. In this study, we detected the edges and their directions in images based on the magnitude of the gradient in the direction of the eight neighborhoods of each pixel, then conducted GNLDF at the edge pixel just along the directions of the edges while at any no edge pixel along all four directions. Experiment results of five typical images with five levels of noise intensity show that the proposed method can not only effectively remove the noise but also better protect the edges in images.