[問題] 關於CIE-lab的色差值
小弟因為程式需要計算顏色的色差值
所以採用CIE-lab
但是上網爬了之後出現了個疑問
網路上看到
公式為( (L1*-L2*)^2 + (a1*-a2*)^2 + (b1*-b2*)^2 )^(1/2)
但是這個單位是多大?
像opencv好像會弄成0~255
目前我是猜測是
L*從0~255改到0~100
a*改到-500~500
b*改到-200~200
這樣嘛?
還是說一律用0~255下去做就好?
爬半天沒辦法確定
所以上來請問大家
或是說我應該PO到其他版比較好?
感謝大家了
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