忽然想起一个问题：只有69万像素摄像头的iPod touch 4是如何拍摄1280＊720视频的，这个像素只能拍摄960＊720的视频啊？ 拍摄720P至少要92万像素吧？有高人知道没？
regsvr32 · 2011-03-08 18:17:20 +08:00 · 7347 次点击这是一个创建于 5034 天前的主题，其中的信息可能已经有所发展或是发生改变。
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naoqiushen 2011-03-12 01:05:47 +08:00
手持70万的飘过
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lianghai 2011-03-12 02:03:19 +08:00
哪里有数据说 iPod touch 4 的摄像头是 0.69M 像素的？官网的信息是这样的：
Video recording, HD (720p) up to 30 frames per second with audio; still photos (960 x 720) with back camera http://www.apple.com/ipodtouch/specs.html 似乎这个 0.69M 是拿照片的分辨率乘出来的？ |
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LeiWeimu 2011-03-12 02:40:15 +08:00
@lianghai Find some data here but I'm not sure about its source credibility: http://www.edepot.com/iphone.html
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LeiWeimu 2011-03-12 02:55:39 +08:00
@regsvr32 @lianghai This explanation is interesting and somewhat convincing: "[t]he sensor actually is 1280x720 pixels, so it can create 720p video; that is a 16:9 format. But [for] still pictures, most still cameras take 4:3 pictures, and the iPod's camera does the same. A 4:3 picture with 720 pixels vertically is 960x720. That's 691,200 pixels, or 0.7 megapixels."
So it might be too arbitrary to say iPod touch 4th generation only has 0.69-megapixel rear camera. |
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