Performs one-level wavelet decomposition of an image using haar basis. The four resultant images are half the width and half the height of the original image
Function
CuviStatus haarFwd(const CuviImage& src,
CuviImage& dstApprox,
CuviImage& dstDetailX,
CuviImage& dstDetailY,
CuviImage& dstDetailXY,
const CuviStream& stream = CuviStream());
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Parameters
| Name
|
Type
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Description
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| src
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const CuviImage&
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Input image
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| dstApprox
|
CuviImage&
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Output approximation image
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| dstDetailX
|
CuviImage&
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Output horizontal detail image
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| dstDetailY
|
CuviImage&
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Output vertical detail image
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| dstDetailXY
|
CuviImage&
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Output diagonal detail image
|
| stream
|
const CuviStream&
|
GPU stream ID for execution
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Image Type Support
| Input
|
Output
|
| 8uC1
|
8uC1 x 4
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| 8uC3
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8uC3 x 4
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Sample
Original Image
Approx Component
Detail X Component
Detail Y Component
Detail XY Component
Example
//Input Image
CuviImage gimg = cuvi::io::loadImage(path);
//Four output images
CuviImage a, x, y, xy;
//compute one-level haar wavelet decomposition
cuvi::imageTransforms::haarFwd(gimg,a,x,y,xy);
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