hdr和长时间曝光 [英] hdr and long exposure

问题描述

 来自lumia 1020的一件事是在HDR中的Buit和超过40分钟的长时间曝光。有谁知道如何重写该程序？或者制作一个同时包含两者的应用程序。

 One thing that is missin from lumia 1020 is Buit in HDR and long exposure like more than 40min. Do anyone know how to rewrite the program? or make an app that has both.

推荐答案

HDR是可能的，你只需要拍摄3张或更多张照片，其中一张曝光过度，一张曝光不足并将它们合并到HDR图像。通常你会希望这3张图像尽可能少地拍摄。由于1020产生了巨大的图像
，然而这3个镜头花费了他们的时间。

HDR is possible, you would simply take 3 or more shots with one over- and one underexposed and combine them to a HDR image. Regularly you would want those 3 images to be taken with as little time between them as possible. Due to the huge images produced by the 1020 however those 3 shots take their time.

较新的8.1设备支持低延迟捕获序列模式，更适合HDR应用。

Newer 8.1 devices support a low latency capture sequence mode that is more fitting for HDR applications.

诺基亚开发者的这篇文章详细介绍了如何使用诺基亚成像SDK（由执行App 4Blend HDR的人编写）在Windows Phone 8上实现HDR捕获：

http://developer.nokia.com/community/wiki/HDR_I_-_Implementing_High_Dynamic_Range_filters_using_Nokia_Imaging_SDK

This article on Nokia Developer goes into detail on how HDR capture can be implemented on Windows Phone 8 using the Nokia Imaging SDK (written by the guy who did the App 4Blend HDR): http://developer.nokia.com/community/wiki/HDR_I_-_Implementing_High_Dynamic_Range_filters_using_Nokia_Imaging_SDK

至于长时间曝光 - 1020支持的最长值是4秒。没有可用的API可以扩展它。

As for long time exposure - the longest value supported on the 1020 is 4 seconds. There is no API available that would allow you to extend this.

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