如何将Image<Gray, Byte>转换为Image<Gray, float>?

Question

如何将Image<Gray, Byte>转换为Image<Gray, float>?

5

我正在尝试从另一张图像中减去1张图像，类似于这样：

Image<Gray, float> result, secondImage;
Image<Gray, byte> firstImage;
result = firstImage - secondImage;

但是它会出现错误。

Operator '-' cannot be applied to operands of type 'Emgu.CV.Image<Emgu.CV.Structure.Gray,byte>' and 'Emgu.CV.Image<Emgu.CV.Structure.Gray,float>'

也许我需要先将firstImage转换为Image<Gray, float>类型。但我不知道该怎么做。

- maru1414152

1个回答

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- Heinzi · Accepted Answer

引用自文档：

Color and Depth Conversion

Converting an Image between different colors and depths are simple. For example, if you have Image img1 and you wants to convert it to a grayscale image of Single, all you need to do is
Image<Gray, Single> img2 = img1.Convert<Gray, Single>();

因此，在您的情况下，您可以使用

result = firstImage.Convert<Gray, float>() - secondImage;