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Table 2 A comparison of image analysis methods

From: Quantitative image analysis of immunohistochemical stains using a CMYK color model

  Yellow channel nRed channel
  Intensity (mean) % Positive area Intensity (mean) % Positive area
Positive color selection (% positive area) 0.96 0.98 0.84 0.98
  1. Values (correlation coefficient, r) indicate strength of a linear relationship between results from positive color selection and Yellow or normalized Red analysis method, where a maximum positive is r = 1.