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CreateImageResizeMap
Creates a spatial map representing an image resizing.
Header: | AVL.h |
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Syntax
C++
C#
void avl::CreateImageResizeMap ( const avl::ImageFormat& inImageFormat, int inNewWidth, int inNewHeight, avl::InterpolationMethod::Type inInterpolationMethod, avl::SpatialMap& outResizeMap, atl::Optional<avl::Region&> outOutputRegion = atl::NIL )
Parameters
Name | Type | Range | Default | Description | |
---|---|---|---|---|---|
inImageFormat | const ImageFormat& | Information about dimensions, depth and pixel type of the image | |||
inNewWidth | int | 1 - | Width of an image created by output spatial map application | ||
inNewHeight | int | 1 - | Height of an image created by output spatial map application | ||
inInterpolationMethod | InterpolationMethod::Type | Bilinear | Interpolation method used in extraction of image pixel values | ||
outResizeMap | SpatialMap& | Output spatial map | |||
outOutputRegion | Optional<Region&> | NIL | Pixels set by the spatial map application |
Description
The operation generates map that stretches or shrinks the image. Two modes of pixel interpolation are available, the bilinear filtering being more precise and computationally expensive. Usually creating map and then using RemapImage is faster than ResizeImage.
See Also
- RemapImage – Applies a precomputed image transform, defined by a spatial map object.
- ResizeImage – Enlarges or shrinks an image to new dimensions.