Background Removal Using Color Neighborhoods

Visualize three different color neighborhoods:

In[1]:=

ChromaticityPlot3DColorsNear

,.1,ColorsNear

,.1,"LAB"

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The "CIE76" color distance metric is defined as the Euclidean distance in the Lab color space. Color neighborhoods using this metric in 3D Lab space show perfect spheres:

In[2]:=

ChromaticityPlot3DColorsNear[#,.2,"CIE76"]&/@{Red,Green,Blue},"LAB",



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Use a color neighborhood to detect the green screen in an image:

In[3]:=

i=

;mask=ColorDetecti,ColorsNear

,.15

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Use the mask as the image alpha channel to remove the green screen:

In[4]:=

SetAlphaChannel[i,ColorNegate[mask]]

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Wolfram Language Example Repository

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Background Removal Using Color Neighborhoods

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