1. A method comprising: performing a first segmentation process on a digital image that searches for a first cell component type having a predetermined color, wherein the digital image depicts tissue that is stained with a test biomarker to have the predetermined color; performing a second segmentation process on the digital image that searches for a second cell component type that has the predetermined color; identifying the test biomarker as a stain for the first cell component type if the first segmentation process identifies the first cell component type; identifying the test biomarker as a stain for the second cell component type if the second segmentation process identifies the second cell component type, wherein both, neither or only one of the first and second cell component types can be identified; and displaying on a graphical user interface whether the test biomarker is a stain for the first cell component type and whether the test biomarker is a stain for the second cell component type.