Figure 2From: 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 Color Decomposition. This is an example image of a breast cancer specimen stained for HER2 using DAB as the chromagen and counterstained with hematoxylin. Color Decomposition [18] is applied to the original image and as a result, a gray scale DAB stained image plane and a hematoxylin stained image plane is produced.Back to article page