如何在设备上合法显示DICOM 16无符号整数支持8位无符号整数? [英] How to show legally DICOM 16 unsigned integer on the device are supporting 8 bit unsigned integer?

问题描述

我正在使用iOS上的Medical应用程序. iOS设备仅支持GL_UNSIGNED_BYTE和GL_LUMINANCE，或者通常每个组件仅支持8位.现在我有一些灰度图像是16位无符号整数，我想显示它们.我发现我们无法显示16位无符号整数，因此我应该将它们转换为8位无符号整数.但是在Medical中，我不应该丢失数据或应该将数据丢失降至最低.

I'm working on a Medical app on iOS. The iOS devices just support GL_UNSIGNED_BYTE with GL_LUMINANCE or generally just support 8 bit per component. Now I have some grayscale images are 16 bit unsigned integer and I want to show them. I find we can't show 16 bit unsigned integer and Therefore I should convert them to 8 bit unsigned integer. But in Medical I should not loss data or should have minimum data loss.

现在，我的问题是:如何通过Medical中的合法转换将16位无符号整数转换为8位无符号整数?现在，我正在使用最简单的方法来执行此操作.只需将其划分为256:-O.其他一些商业软件正在这样做，并且正在实际使用中.

Now, my question is : how to convert 16 bit unsigned integer to 8 bit unsigned integer by a legal conversion in Medical? Now I'm using simplest way to do this. Just divide it to 256 :-O. Some other commercial softwares are doing this and they are using in action.

谢谢.

推荐答案

您必须转换这些值，以便应用 Window Level 来显示它们.

You MUST convert these values in order to show them applying a Window Level.

灰度Dicom图像通常确实具有两个数据元素(Dicom字段)，其中包含值WC(窗口中心，数据元素:0028,1050)和WL(窗口级别，数据元素:0028,1051).这些值定义了显示图像中包含的信息所必需的线性方程.

Grayscale Dicom images do usually have two Data Elements (Dicom fields) containing the values WC (Window Center, Data Element: 0028,1050) and WL (Window Level, Data Element: 0028,1051). These values define the linear equation necessary to display the information contained in the image.

您可以在此处.

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