iOS 13.2 開發者預覽版雖然說時間上延遲了,可這次的更新,卻為各位 iPhone 11 系列用戶帶來了不小的驚喜,因為 Deep Fusion 來了。<article>
<p>Deep Fusion 被蘋果高級副總裁菲利普·席勒稱為「運算攝影的瘋狂哲學」的功能,可以在用戶按下快門前拍攝 8 張照片,並融合一張按下快門時的長曝圖片,產生一張媲美專業相機的高動態範圍照片,即便在中低光源環境下,也能呈現更多細節。</p>
<p>Deep Fusion 這項今年三款新 iPhone 獨佔的功能,並沒有隨著新 iPhone 的開售而到來。但經過將近一個月的等待後,它終於還是來了。</p>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="https://s3.ifanr.com/wp-content/uploads/2019/10/13.png!720" sizes="(max-width: 1430px) 100vw, 1430px" srcset="https://s3.ifanr.com/wp-content/uploads/2019/10/13.png!720 1430w, https://s3.ifanr.com/wp-content/uploads/2019/10/13-360x201.png 360w, https://s3.ifanr.com/wp-content/uploads/2019/10/13-768x430.png 768w, https://s3.ifanr.com/wp-content/uploads/2019/10/13-1024x573.png 1024w" alt="測試版 iOS 13.2 解鎖拍照新功能,iPhone 11 將能拍出超強細節" width="600" height="336"></p>
<h3>直接看看成像效果怎麼樣</h3>
<p>大家都知道,在過去的機型中,蘋果就已經透過 Smart HDR 來幫助用戶拍攝出高動態範圍的照片。自然而然,蘋果用戶最關心的,相信就是,Deep Fusion 與前者有何差異。</p>
<p>加拿大攝影師 Tyler Stalman 就將 iPhone XR 上的 Smart HDR 與 iPhone 11 上的 Deep Fusion 進行了<a href="https://twitter.com/stalman">對比</a>。</p>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="https://s3.ifanr.com/wp-content/uploads/2019/10/1.png!720" sizes="(max-width: 1894px) 100vw, 1894px" srcset="https://s3.ifanr.com/wp-content/uploads/2019/10/1.png!720 1894w, https://s3.ifanr.com/wp-content/uploads/2019/10/1-360x239.png 360w, https://s3.ifanr.com/wp-content/uploads/2019/10/1-768x510.png 768w, https://s3.ifanr.com/wp-content/uploads/2019/10/1-1024x680.png 1024w" alt="測試版 iOS 13.2 解鎖拍照新功能,iPhone 11 將能拍出超強細節" width="600" height="399"></p>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="https://s3.ifanr.com/wp-content/uploads/2019/10/2.png!720" sizes="(max-width: 1886px) 100vw, 1886px" srcset="https://s3.ifanr.com/wp-content/uploads/2019/10/2.png!720 1886w, https://s3.ifanr.com/wp-content/uploads/2019/10/2-360x240.png 360w, https://s3.ifanr.com/wp-content/uploads/2019/10/2-768x512.png 768w, https://s3.ifanr.com/wp-content/uploads/2019/10/2-1024x683.png 1024w" alt="測試版 iOS 13.2 解鎖拍照新功能,iPhone 11 將能拍出超強細節" width="600" height="400"></p>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="https://s3.ifanr.com/wp-content/uploads/2019/10/3-1.png!720" sizes="(max-width: 1884px) 100vw, 1884px" srcset="https://s3.ifanr.com/wp-content/uploads/2019/10/3-1.png!720 1884w, https://s3.ifanr.com/wp-content/uploads/2019/10/3-1-360x240.png 360w, https://s3.ifanr.com/wp-content/uploads/2019/10/3-1-768x511.png 768w, https://s3.ifanr.com/wp-content/uploads/2019/10/3-1-1024x682.png 1024w" alt="測試版 iOS 13.2 解鎖拍照新功能,iPhone 11 將能拍出超強細節" width="600" height="399"></p>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="https://s3.ifanr.com/wp-content/uploads/2019/10/4.png!720" sizes="(max-width: 1890px) 100vw, 1890px" srcset="https://s3.ifanr.com/wp-content/uploads/2019/10/4.png!720 1890w, https://s3.ifanr.com/wp-content/uploads/2019/10/4-360x237.png 360w, https://s3.ifanr.com/wp-content/uploads/2019/10/4-768x506.png 768w, https://s3.ifanr.com/wp-content/uploads/2019/10/4-1024x675.png 1024w" alt="測試版 iOS 13.2 解鎖拍照新功能,iPhone 11 將能拍出超強細節" width="600" height="396"></p>
<p>從樣張中可以看到,確實在開啟 Deep Fusion 後,樣張確實會有更為豐富的細節表現。</p>
<p>另一組樣張則是來自國外科技部落客 Chuck Skoda,他直接將樣張進行了 100% 的放大,然後對比了 Smart HDR 與 Deep Fusion 的<a href="https://twitter.com/skoda">表現</a>。(左邊為 Smart HDR,右邊為 Deep Fusion)</p>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="https://s3.ifanr.com/wp-content/uploads/2019/10/6.jpg!720" sizes="(max-width: 1275px) 100vw, 1275px" srcset="https://s3.ifanr.com/wp-content/uploads/2019/10/6.jpg!720 1275w, https://s3.ifanr.com/wp-content/uploads/2019/10/6-360x171.jpg 360w, https://s3.ifanr.com/wp-content/uploads/2019/10/6-768x364.jpg 768w, https://s3.ifanr.com/wp-content/uploads/2019/10/6-1024x486.jpg 1024w" alt="測試版 iOS 13.2 解鎖拍照新功能,iPhone 11 將能拍出超強細節" width="600" height="285"></p>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="https://s3.ifanr.com/wp-content/uploads/2019/10/5.jpg!720" sizes="(max-width: 1277px) 100vw, 1277px" srcset="https://s3.ifanr.com/wp-content/uploads/2019/10/5.jpg!720 1277w, https://s3.ifanr.com/wp-content/uploads/2019/10/5-360x170.jpg 360w, https://s3.ifanr.com/wp-content/uploads/2019/10/5-768x363.jpg 768w, https://s3.ifanr.com/wp-content/uploads/2019/10/5-1024x484.jpg 1024w" alt="測試版 iOS 13.2 解鎖拍照新功能,iPhone 11 將能拍出超強細節" width="600" height="283"></p>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="https://s3.ifanr.com/wp-content/uploads/2019/10/4.jpg!720" sizes="(max-width: 1280px) 100vw, 1280px" srcset="https://s3.ifanr.com/wp-content/uploads/2019/10/4.jpg!720 1280w, https://s3.ifanr.com/wp-content/uploads/2019/10/4-360x170.jpg 360w, https://s3.ifanr.com/wp-content/uploads/2019/10/4-768x362.jpg 768w, https://s3.ifanr.com/wp-content/uploads/2019/10/4-1024x483.jpg 1024w" alt="測試版 iOS 13.2 解鎖拍照新功能,iPhone 11 將能拍出超強細節" width="600" height="283"></p>
<p>另外,科技部落客 domenico 也在其<a href="https://twitter.com/domenicopanacea">推特</a>中發出了一組在夜景中開啟 Deep Fusion 的對比照。相比起日間,在夜景中 Deep Fusion 對細節還原的提升似乎更大。</p>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="https://s3.ifanr.com/wp-content/uploads/2019/10/17.png!720" sizes="(max-width: 1674px) 100vw, 1674px" srcset="https://s3.ifanr.com/wp-content/uploads/2019/10/17.png!720 1674w, https://s3.ifanr.com/wp-content/uploads/2019/10/17-360x268.png 360w, https://s3.ifanr.com/wp-content/uploads/2019/10/17-768x571.png 768w, https://s3.ifanr.com/wp-content/uploads/2019/10/17-1024x761.png 1024w" alt="測試版 iOS 13.2 解鎖拍照新功能,iPhone 11 將能拍出超強細節" width="600" height="446"></p>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="https://s3.ifanr.com/wp-content/uploads/2019/10/18.png!720" sizes="(max-width: 1672px) 100vw, 1672px" srcset="https://s3.ifanr.com/wp-content/uploads/2019/10/18.png!720 1672w, https://s3.ifanr.com/wp-content/uploads/2019/10/18-360x269.png 360w, https://s3.ifanr.com/wp-content/uploads/2019/10/18-768x573.png 768w, https://s3.ifanr.com/wp-content/uploads/2019/10/18-1024x764.png 1024w" alt="測試版 iOS 13.2 解鎖拍照新功能,iPhone 11 將能拍出超強細節" width="600" height="448"></p>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="https://s3.ifanr.com/wp-content/uploads/2019/10/17.jpg!720" sizes="(max-width: 1650px) 100vw, 1650px" srcset="https://s3.ifanr.com/wp-content/uploads/2019/10/17.jpg!720 1650w, https://s3.ifanr.com/wp-content/uploads/2019/10/17-360x273.jpg 360w, https://s3.ifanr.com/wp-content/uploads/2019/10/17-768x582.jpg 768w, https://s3.ifanr.com/wp-content/uploads/2019/10/17-1024x776.jpg 1024w" alt="測試版 iOS 13.2 解鎖拍照新功能,iPhone 11 將能拍出超強細節" width="600" height="455"></p>
<p>實際上,新 iPhone 在攝影上的突破,主要歸功於算力更強大的 A13 仿生晶片上。這塊晶片相比起前代,CPU 速度最高可提升 20%,能耗最多可降低 30%,而四個能效核心速度提升了 20%,能耗卻降低了 40%。</p>
<p>另外,A13 仿生新增了兩個新的機器學習加速器,能以最高達 6 倍的速度執行矩陣數學運算,每秒可進行 1 萬億次的運算。</p>
<p>更強大的算力,才得以保證 Deep Fusion 的實現。</p>
<p>與 Smart HDR 不同,Deep Fusion 的合成並不需要經過 ISP,而是當你拍攝了更多的照片數據時,它們會直接給到神經網路引擎,神經網路引擎具備一種全新的模型,可以整合大量的照片——它會對 2400 萬像素進行逐一像素的比對,進而合成最終的照片。</p>
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="https://s3.ifanr.com/wp-content/uploads/2019/10/14.png!720" sizes="(max-width: 1432px) 100vw, 1432px" srcset="https://s3.ifanr.com/wp-content/uploads/2019/10/14.png!720 1432w, https://s3.ifanr.com/wp-content/uploads/2019/10/14-360x205.png 360w, https://s3.ifanr.com/wp-content/uploads/2019/10/14-768x438.png 768w, https://s3.ifanr.com/wp-content/uploads/2019/10/14-1024x584.png 1024w" alt="測試版 iOS 13.2 解鎖拍照新功能,iPhone 11 將能拍出超強細節" width="600" height="342"></p>
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