如何将DICOM图像的宽度和水平转换为JPEG亮度和对比度？ [英] How to translate DICOM image width and level to JPEG brightness and contrast?

问题描述

如果将DICOM图像转换为JPEG，将原始DICOM的图像宽度= 500，窗口级别= 2000转换/计算为JPEG的亮度和对比度的方法是什么？

If we convert a DICOM image to JPEG, what is the way to translate / calculate Image width = 500, Window Level = 2000 of the original DICOM to JPEG's brightness and contrast?

推荐答案

您的问题没有直接答案，因为DICOM和JPEG具有定义亮度/对比度的不同方法。 JPEG存储真彩色值（RGB），而DICOM则具有原始像素值，大多数情况下未着色。 DICOM查看器通过读取窗口水平和宽度并将其转换为颜色来呈现它。

There's no direct answer to your question, since DICOM and JPEG have different ways to define brightness/contrast. JPEG stores true color values (RGB), while DICOM have raw pixel values, uncolored most of the time. A DICOM viewer renders it by reading the Window Level and Width and convert this to color.

也就是说，您可以说希望JPEG的像素颜色为如果它是由查看者渲染的。在您的情况下，小于1500的像素将呈现为黑色，大于2500的像素将呈现为白色。

That is, you can say that you want your JPEG to have its pixel colors as if it was rendered by a viewer. In your case pixels smaller than 1500 will be rendered as black, and those greater than 2500 as white.

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