A method of analyzing human pulmonary X-rays using a few software procedures to process the images will be presented. Photographs of the lungs were investigated and images of the arteries were illustrated, successfully extracting the shadows due to the ribs and the lung itself through an advanced algorithm. This paper presents a solution for processing and interpretation of pulmonary X-ray images in order to deploy a better fractal analysis, to find out the fractal dimension and lacunarity for arteries network.