静脈は青くないのに青く見える「静脈錯視」分析図。静脈部分とその近くとの比較。これは代表例ですが、静脈は近傍に比べてB値が高く、R値が低い傾向にあります。 Veins appear to be bluish though they are actually not.pic.twitter.com/Qnmk7pQjQC
7:32 PM - 22 Jan 2017
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