Question: Find E for a text letter whose critical detail is 3.68 min (from before), and contrast (C%) of the letter and the piece of

Find E for a text letter whose critical detail is 3.68 min 


Find E for a text letter whose critical detail is 3.68 min (from before), and contrast (C%) of the letter and the piece of paper is 50%. (Assume a reflectance for the paper of 80% (R = 0.8))

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