Figure 4From: Computer-assisted assessment of the Human Epidermal Growth Factor Receptor 2 immunohistochemical assay in imaged histologic sections using a membrane isolation algorithm and quantitative analysis of positive controls Results of the membrane isolation algorithm. Two examples of HER2 images (left column) taken from a manually graded 3+ case (top row) and 2+ case (bottom row) with their isolated membrane regions (right column). Images are captured at 20× magnification and stained with DAB and hematoxylin.Back to article page