Sony Xperia CZ Premium 油畫似乎消失了 - 手機討論

By Adele
at 2017-03-03T07:32
at 2017-03-03T07:32
Table of Contents
首先Sony多年來為人詬病的相機油畫感在這次的XZP上似乎得到了改善,從GSM arena所公
布的工程機樣本來看油畫感已經不復存在
首先先來一張放大比較圖比較XZP跟XZ的差別
可以看到原本在XZ物體邊緣會產生大量的躁點
這點在XZP上面已經沒有了
http://i.imgur.com/kIE9nVT.jpg
http://i.imgur.com/4lnVLp8.jpg
http://i.imgur.com/ZSCUb6j.jpg
再來一張XZP
http://i.imgur.com/9GOb701.jpg
iPhone 7
http://i.imgur.com/Vi8y14g.jpg
LG G6
http://i.imgur.com/6g1nUjh.jpg
接著討論一下所謂的「油畫感」是怎麼造成的,以及其他公司是如何在演算法上改善躁點
的
如同上圖所示,索尼拍照的油畫感其實是來自於大量與原本色彩不一致的躁點所造成,這
樣會造成兩種現象,第一是色彩不乾淨、第二就是邊緣不夠銳利而產生模糊感
那麼其他廠商是如何解決這個問題的呢?
以下我用Photoshop裡面內建的降噪功能與色塊化功能ㄧ步步來演示給你們我選了一張由X
Z所拍攝的樣本,經過處理之後可以達到或接近LG G6或是S7的畫質
首先可以看到降噪可以吧與周圍環境色彩不一緻的躁點給同化達到抹除的效果
http://i.imgur.com/46OW3sz.jpg
而色塊化可以進一步將色彩純化提高對比度
我們再用同樣的方法處理另外一張照片,然後拿來跟G5還有S7拍的照片做比較
http://i.imgur.com/4rcnpZ6.jpg
http://i.imgur.com/Z9jJPGy.jpg
http://i.imgur.com/DL2czur.jpg
http://i.imgur.com/Rv0k2kp.jpg
XZ 修圖後
http://i.imgur.com/1Feff9o.jpg
LG G5
http://i.imgur.com/cHbCveg.jpg
S7
http://i.imgur.com/6MhvEYt.jpg
可以看到經過處理的照片已經跟另外兩家很接近了
也就是說基本上LG跟三星的作法就類似套用了PS中的濾鏡效果,並不是什麼黑科技逆天
而索尼過去似乎不願意將照片做過多的後製以至於照片看起來不討好眼球
畢竟現在的消費者真正在意本質的不多,大多只要看起來吸睛就好了,是不是後製的根本
無所謂
附上更多實拍照片大家可以自己去看看
另外已經確認這些照片是以最高19MP像素所拍攝
不是之前說的720P畫質
http://i.imgur.com/LxD5N7z.jpg
http://i.imgur.com/gA0EvsW.jpg
http://i.imgur.com/Mp84YjS.jpg
http://i.imgur.com/caorjlU.jpg
http://i.imgur.com/g2R1KUY.jpg
http://i.imgur.com/YQfPDdI.jpg
http://i.imgur.com/54g0AOB.jpg
http://i.imgur.com/ecm5jl6.jpg
http://i.imgur.com/UoNcsKP.jpg
http://i.imgur.com/hLF7Fis.jpg
http://i.imgur.com/ISqcOXZ.jpg
http://i.imgur.com/C04D0hd.jpg
http://i.imgur.com/TjXuAMQ.jpg
http://i.imgur.com/sSRZnGM.jpg
http://i.imgur.com/vUzkNT3.jpg
http://i.imgur.com/G31L5nl.jpg
http://i.imgur.com/Ew3AT2k.jpg
--
布的工程機樣本來看油畫感已經不復存在
首先先來一張放大比較圖比較XZP跟XZ的差別
可以看到原本在XZ物體邊緣會產生大量的躁點
這點在XZP上面已經沒有了
http://i.imgur.com/kIE9nVT.jpg



http://i.imgur.com/9GOb701.jpg

http://i.imgur.com/Vi8y14g.jpg

http://i.imgur.com/6g1nUjh.jpg

接著討論一下所謂的「油畫感」是怎麼造成的,以及其他公司是如何在演算法上改善躁點
的
如同上圖所示,索尼拍照的油畫感其實是來自於大量與原本色彩不一致的躁點所造成,這
樣會造成兩種現象,第一是色彩不乾淨、第二就是邊緣不夠銳利而產生模糊感
那麼其他廠商是如何解決這個問題的呢?
以下我用Photoshop裡面內建的降噪功能與色塊化功能ㄧ步步來演示給你們我選了一張由X
Z所拍攝的樣本,經過處理之後可以達到或接近LG G6或是S7的畫質
首先可以看到降噪可以吧與周圍環境色彩不一緻的躁點給同化達到抹除的效果
http://i.imgur.com/46OW3sz.jpg

我們再用同樣的方法處理另外一張照片,然後拿來跟G5還有S7拍的照片做比較
http://i.imgur.com/4rcnpZ6.jpg




http://i.imgur.com/1Feff9o.jpg

http://i.imgur.com/cHbCveg.jpg

http://i.imgur.com/6MhvEYt.jpg

可以看到經過處理的照片已經跟另外兩家很接近了
也就是說基本上LG跟三星的作法就類似套用了PS中的濾鏡效果,並不是什麼黑科技逆天
而索尼過去似乎不願意將照片做過多的後製以至於照片看起來不討好眼球
畢竟現在的消費者真正在意本質的不多,大多只要看起來吸睛就好了,是不是後製的根本
無所謂
附上更多實拍照片大家可以自己去看看
另外已經確認這些照片是以最高19MP像素所拍攝
不是之前說的720P畫質
http://i.imgur.com/LxD5N7z.jpg

















--
Tags:
手機
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