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ImageTools[Layers] - return the layer information of an image
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Calling Sequence
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Layers(img, info)
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Parameters
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img
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Image; input image
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info
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(optional) type of information to return
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Description
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The Layers command returns the number of layers of an image. A grayscale image has one layer. A color image has three layers. A color image with alpha channel has four layers.
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The img parameter is the image.
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Information
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The optional info parameter specifies the information to return. Its default value is size. The following operations are supported:
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lower: lower layer index
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upper: upper layer index
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range: layer index range
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Examples
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![map2(Layers, img, [size, lower, upper, range])](/support/helpjp/helpview.aspx?si=3865/file01957/math99.png)
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![[3, 1, 3, 1 .. 3]](/support/helpjp/helpview.aspx?si=3865/file01957/math102.png)
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