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其實歐巴馬那張近拍有點模糊，看不出來漸層是真實的灰階，還是也是用黑白花紋模擬的。尤其在歐巴馬額頭的部份，很明顯可以看出灰階漸層階數不足。(2x2只有四階！？)用網點模擬灰階不見得是那麼糟，可是前題是解析度要夠高才行。
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Reader Comments (Page 1 of 1)
JC @ Feb 8th 2009 10:13AM
其實歐巴馬那張近拍有點模糊，看不出來漸層是真實的灰階，還是也是用黑白花紋模擬的。
尤其在歐巴馬額頭的部份，很明顯可以看出灰階漸層階數不足。(2x2只有四階！？)
用網點模擬灰階不見得是那麼糟，可是前題是解析度要夠高才行。