Emgu Cv C中的背景减法＃ [英] Background Subtraction in Emgu Cv C#

问题描述

如何将图像的背景设为黑色，并且所有存在的对象都是白色的？我已经尝试过AbsDif并保持其结果，但它非常考虑照明。



这是示例图像： http://stackoverflow.com/questions/19699687/algorithm-to-count-people-in-a-crowd [ ^ ]



请帮忙。

How can I make the background of an image black and all the objects present are white? I have tried the AbsDif and thressholding its result but it considers the lighting very much.

Here is the sample image : http://stackoverflow.com/questions/19699687/algorithm-to-count-people-in-a-crowd[^]

Please help.

推荐答案

首先尝试Canny过滤以检测边缘

Try Canny filtering first to detect edges

Dim img As New Image(Of Bgr, Byte)("img.jpg")
Dim imgCANNY As Image(Of Gray, Byte) = img.Canny(90, 70)

然后进行二值化

Then make Binarization

Dim img_BINARY As Image(Of Bgr, Byte) = img.ThresholdBinary(New Bgr(100, 100, 0), New Bgr(0, 100, 100))

转换它可以通过C＃和数字来获得最佳效果，也可以尝试不同的过滤以获得更好的结果

（Sobel，Laplace，Sub，EqualizeHist，SmoothBilatral）



Additi这里的信息： www.emgu.com/ wiki /



Best，

Nick

Convert it to C# and play with numbers to get best result, also u can try different filtering to get better result
(Sobel, Laplace, Sub, EqualizeHist, SmoothBilatral)

Additional information here: www.emgu.com/wiki/

Best,
Nick

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