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ArrayFire: sobel
Sobel Operators. More...
Sobel Operators.
Sobel operators perform a 2-D spatial gradient measurement on an image to emphasize the regions of high spatial frequency, namely edges. A more in depth discussion on it can be found here.
◆ af_sobel_operator()
C Interface for getting sobel gradients.
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Parameters
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[out] dx is derivative along horizontal direction [out] dy is derivative along vertical direction [in] img is an array with image data [in] ker_size sobel kernel size or window size
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Returns
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AF_SUCCESS if sobel derivatives are computed successfully, otherwise an appropriate error code is returned.
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Note
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If
img is 3d array, a batch operation will be performed.
◆ sobel() [1/2]
C++ Interface for extracting sobel gradients.
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Parameters
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[out] dx is derivative along horizontal direction [out] dy is derivative along vertical direction [in] img is an array with image data [in] ker_size sobel kernel size or window size
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Note
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If
img is 3d array, a batch operation will be performed.
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Examples
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image_processing/filters.cpp.
◆ sobel() [2/2] AFAPI array sobel ( const array & img, const unsigned ker_size = 3, const bool isFast = false )
C++ Interface for sobel filtering.
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Parameters
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[in] img is an array with image data [in] ker_size sobel kernel size or window size [in] isFast = true uses \(G=G_x+G_y\), otherwise \(G=\sqrt (G_x^2+G_y^2)\)
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Returns
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an array with sobel gradient values
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Note
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If
img is 3d array, a batch operation will be performed.
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