她的父母在她很小的时候便离异,她跟着母亲生活,从小便目睹了母亲在感情中的辛酸和苦楚。
2024年12月19日,据悉,云辇将搭载在比亚迪王朝海洋旗舰车型、腾势、仰望以及比亚迪专业个性化品牌的车型上。
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可不能给她们增加负担
他们每天都卖力干活,试图用身体上的劳累去填补内心的创伤。双摄像头手机,遮住其中一个摄像头,拍照会怎么样?原创2017-12-03 09:00·绿联影音攻略欢迎转载,请注明出处,抄袭必究!有位机友火急火燎的跑来问教授:教授教授,用的双摄像头手机,打开手机相机无意遮住其中一个摄像头后,发现拍照画面没有黑屏,而是依然能正常拍照!是不是我的手机双摄是假的?另一个摄像头根本没用啊?如果你用的是双摄像头手机,也可以试试打开相机,然后随便遮住其中一个摄像头,看看发生了什么。是不是也和那位网友一样,发现遮住其中一个摄像头,对拍照好像根本没影响?这也让很多持有双摄手机的机友们开始怀疑人生:双摄像头竟然有一个是没用的?我们是不是被厂商给骗了?别着急,你们没被骗,双摄像头也不只是个噱头,而是真的有用。听教授来一一解释。双摄像头方案想要了解双摄像头是不是真的都有用,就要先了解一下你的手机用的是什么双摄像方案。目前市场上的双摄像头手机一般用的有两种方案,分别是:广角+长焦镜头方案:如iPhone 7 plus、小米6等;彩色+黑白双摄方案:如华为P9/P10、360手机等;而不管手机用的哪一种双摄方案,我们要搞清楚双摄像头的概念:通常来说,都是一个主要负责拍照(即主摄像头),另一个负责变焦、增大进光量、色彩调节、细节调校等等(副摄像头)。也就是说,两个镜头并不都是同时拍照同时工作,而是主摄像负责取景,副摄像头负责成像,是辅助作用。表现在,在暗光环境下拍出来的照片会更加清晰透亮,有效提升拍照效果。所以一般情况下,当我们遮挡住双摄手机中的副摄像头时,依然能正常拍照。但对拍出来的照片画质的影响,针对不同型号手机还需要细酌。毕竟每部手机摄像头使用的双摄方案和算法都有差异,所以当遮挡住其中副摄像头时,对画质的影响也不尽相同。先来看广角+长焦镜头的双摄方案:以苹果首部双摄像头手机iPhone 7 plus为例,它采用的就是非对称式的广角+长焦镜头双摄方案。一般情况下,是广角镜头在工作,只有在进行了光学变焦后,才会切换到长焦镜头(即2倍变焦模式)工作。那么,如果遮掉其中一个摄像头,会对它拍照有什么影响呢?和开头网友遇到的情况一样,在光亮环境下时,遮住iPhone 7 plus其中一个摄像头,并不影响相机拍照。图片来源于网络当然,我们还看到有相关人士测试,说挡住长焦镜头时(即靠近屏幕边的这颗镜头),摄像头会对iPhone 7 plus的拍摄参数进行重新计算,使之达到最佳拍摄状态。但不管怎么说,遮住其中一个摄像头后,对最终拍出来的照片画质,多少还是会有些影响。我们知道,7P的两颗摄像头其中一枚等效焦距是28mm,另一枚是56mm。用过单反相机的都知道,通常相机镜头会有50mm、85mm、135mm,而这些,正是人像拍摄比较适宜的焦距。7P的长焦镜头正好在这个焦段内。所以,以它的人像拍照为例,使用iPhone 7 plus的“人像模式”时,若是这时候遮挡住外面(靠近屏幕边缘)的摄像头,就会发现拍出来的照片画面的质量明显下降了,可以看到很明显的噪点。不过所幸背景虚化效果仍然还有,依照苹果的说法,这主要是依赖于A10芯片强大运算性能。其他采用这个双摄方案的手机原理应该也是大抵如此,不过具体会有差异,可以拿手上的手机试一下。再来看彩色+黑白双摄方案的手机:其实彩色+黑白双摄,可以说华为P9算是很典型的代表了,当年P9作为第一代使用徕卡黑白双摄的手机,在业内掀起一股风波,而后手机逐渐走向双摄趋势(iPhone 7 plus也是晚于P9几个月后才发布)。正常拍照模式下,当遮住P9的黑白相机时(靠近屏幕边缘),发现一样是能正常拍照的。不过对画质的影响怎么样呢?当白天光线充足时,看着似乎并不那么明显,甚至可能基本不太区分得出来。不过在夜晚或光线不是很充足的环境下,当我们挡住黑白摄像头时,手机会提示“为保证拍摄效果,请确保镜头未被遮挡”。而且通过对比发现,拍摄预览时,遮挡住摄像头的画面(右边)整体更暗一些,清晰度也降低,暗部噪点也更明显。所以其实实际上,虽然遮挡黑白镜头仍能正常拍照,但明显影响了成像画质。也就是说这颗黑白镜头实际上是可以有效调节进光量,获得更好的拍照效果。因此,并不能说它没什么用。P9还有一个比较特别的地方,就是拥有黑白相机模式。如果在这个拍照模式下,我们遮挡住它的黑白摄像头,又会发生什么?直接黑屏,无法正常拍照了。所以以P9来说,黑白摄像头除了在调节进光量、后期画质调节的优化上有很大作用,在一些特定模式下,也是需要靠这颗摄像头才能完成。其他采用彩色+黑白双摄模式的手机应该也是类似原理。机友们也可以在自己的双摄手机上试验一下。总结来说,大多数双摄像头手机并不是其中一个没用,也不是说只是一个噱头,而是真正在为手机拍照提供更好的成像效果。当然,不排除有些双摄像确实就是个噱头,对提升拍照没啥用的。不知道你们有没有用过?你现在用的是双摄像头手机吗?赶快遮住其中一个看看拍照有没有受影响,欢迎留言区来畅聊。文章来源于公众号:手机教授sj9983。好配件,让手机更好玩!想要获得更多资讯记得关注、收藏、转发、点赞哦~
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张(窜丑补苍驳)炘()炀(窜耻辞)很(贬别苍)少(厂丑补辞)外(奥补颈)出(颁丑耻)游(驰辞耻)玩(奥补苍),大(顿补)部(叠耻)分(贵别苍)时(厂丑颈)间(闯颈补苍)都(顿耻)宅(窜丑补颈)在(窜补颈)家(闯颈补)里(尝颈)。他(罢补)喜(齿颈)欢(贬耻补苍)随(厂耻颈)身(厂丑别苍)携(齿颈别)带(顿补颈)一(驰颈)瓶(笔颈苍驳)纯(颁丑耻苍)净(闯颈苍驳)水(厂丑耻颈),仿(贵补苍驳)佛(贵辞)这(窜丑别)样(驰补苍驳)就(闯颈耻)能(狈别苍驳)保(叠补辞)持(颁丑颈)内(狈别颈)心(齿颈苍)的(顿别)纯(颁丑耻苍)净(闯颈苍驳)。然(搁补苍)而(贰谤),这(窜丑别)种(窜丑辞苍驳)看(碍补苍)似(厂颈)简(闯颈补苍)单(顿补苍)的(顿别)生(厂丑别苍驳)活(贬耻辞)方(贵补苍驳)式(厂丑颈)背(叠别颈)后(贬辞耻),隐(驰颈苍)藏(颁补苍驳)着(窜丑耻辞)他(罢补)对(顿耻颈)复(贵耻)杂(窜补)社(厂丑别)会(贬耻颈)关(骋耻补苍)系(齿颈)的(顿别)逃(罢补辞)避(叠颈)和(贬别)对(顿耻颈)自(窜颈)我(奥辞)认(搁别苍)同(罢辞苍驳)的(顿别)迷(惭颈)失(厂丑颈)。
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广州日报新花城编辑:林传凌
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