Abstract: An angiogram is an X-ray image that uses fluoroscopy to take pictures of the blood flow within an artery. Due to the overlap of non-vascular structures, the small vessels with low contrast are hardly visible. Pseudo-color processing is an enhancement technique that accentuates certain features that are essential for a given application but hidden with low contrast otherwise. We applied pseudo color to an angiogram image on the basis of scale. Vessels are colored in such away that they are differentiated well. Further, we have enhanced the images by applying transparent colors to the images.