Warping

Various image warps and matrix transforms. More...

Functions
cudaError_t	cudaWarpAffine (uchar4 *input, uchar4 *output, uint32_t width, uint32_t height, const float transform[2][3], bool transform_inverted=false)
	Apply 2x3 affine warp to an 8-bit fixed-point RGBA image. More...
cudaError_t	cudaWarpAffine (float4 *input, float4 *output, uint32_t width, uint32_t height, const float transform[2][3], bool transform_inverted=false)
	Apply 2x3 affine warp to an 32-bit floating-point RGBA image. More...
cudaError_t	cudaWarpPerspective (void *input, uint32_t inputWidth, uint32_t inputHeight, imageFormat inputFormat, void *output, uint32_t outputWidth, uint32_t outputHeight, imageFormat outputFormat, const float transform[3][3], bool transform_inverted=false)
	Apply a 3x3 perspective warp to an image. More...
template<typename T >
cudaError_t	cudaWarpPerspective (T *input, uint32_t inputWidth, uint32_t inputHeight, T *output, uint32_t outputWidth, uint32_t outputHeight, const float transform[3][3], bool transform_inverted=false)
	Apply a 3x3 perspective warp to an image. More...
cudaError_t	cudaWarpPerspective (uchar4 *input, uchar4 *output, uint32_t width, uint32_t height, const float transform[3][3], bool transform_inverted=false)
	Apply 3x3 perspective warp to an 8-bit fixed-point RGBA image. More...
cudaError_t	cudaWarpPerspective (float4 *input, float4 *output, uint32_t width, uint32_t height, const float transform[3][3], bool transform_inverted=false)
	Apply 3x3 perspective warp to an 32-bit floating-point RGBA image. More...
cudaError_t	cudaWarpIntrinsic (uchar4 *input, uchar4 *output, uint32_t width, uint32_t height, const float2 &focalLength, const float2 &principalPoint, const float4 &distortion)
	Apply in-place instrinsic lens distortion correction to an 8-bit fixed-point RGBA image. More...
cudaError_t	cudaWarpIntrinsic (float4 *input, float4 *output, uint32_t width, uint32_t height, const float2 &focalLength, const float2 &principalPoint, const float4 &distortion)
	Apply in-place instrinsic lens distortion correction to 32-bit floating-point RGBA image. More...
cudaError_t	cudaWarpFisheye (uchar4 *input, uchar4 *output, uint32_t width, uint32_t height, float focus)
	Apply fisheye lens dewarping to an 8-bit fixed-point RGBA image. More...
cudaError_t	cudaWarpFisheye (float4 *input, float4 *output, uint32_t width, uint32_t height, float focus)
	Apply fisheye lens dewarping to a 32-bit floating-point RGBA image. More...

Detailed Description

Various image warps and matrix transforms.

Function Documentation

cudaWarpAffine() [1/2]

cudaError_t cudaWarpAffine	(	float4 *	input,
		float4 *	output,
		uint32_t	width,
		uint32_t	height,
		const float	transform[2][3],
		bool	transform_inverted = false
	)

Apply 2x3 affine warp to an 32-bit floating-point RGBA image.

The 2x3 matrix transform is in row-major order (transform[row][column]) If the transform has already been inverted, set transform_inverted to true.

cudaWarpAffine() [2/2]

cudaError_t cudaWarpAffine	(	uchar4 *	input,
		uchar4 *	output,
		uint32_t	width,
		uint32_t	height,
		const float	transform[2][3],
		bool	transform_inverted = false
	)

Apply 2x3 affine warp to an 8-bit fixed-point RGBA image.

The 2x3 matrix transform is in row-major order (transform[row][column]) If the transform has already been inverted, set transform_inverted to true.

cudaWarpFisheye() [1/2]

cudaError_t cudaWarpFisheye	(	float4 *	input,
		float4 *	output,
		uint32_t	width,
		uint32_t	height,
		float	focus
	)

Apply fisheye lens dewarping to a 32-bit floating-point RGBA image.

Parameters

[in]

focus

focus of the lens (in mm).

cudaWarpFisheye() [2/2]

cudaError_t cudaWarpFisheye	(	uchar4 *	input,
		uchar4 *	output,
		uint32_t	width,
		uint32_t	height,
		float	focus
	)

Apply fisheye lens dewarping to an 8-bit fixed-point RGBA image.

Parameters

[in]

focus

focus of the lens (in mm).

cudaWarpIntrinsic() [1/2]

cudaError_t cudaWarpIntrinsic	(	float4 *	input,
		float4 *	output,
		uint32_t	width,
		uint32_t	height,
		const float2 &	focalLength,
		const float2 &	principalPoint,
		const float4 &	distortion
	)

Apply in-place instrinsic lens distortion correction to 32-bit floating-point RGBA image.

Pinhole camera model with radial (barrel) distortion and tangential distortion.

cudaWarpIntrinsic() [2/2]

cudaError_t cudaWarpIntrinsic	(	uchar4 *	input,
		uchar4 *	output,
		uint32_t	width,
		uint32_t	height,
		const float2 &	focalLength,
		const float2 &	principalPoint,
		const float4 &	distortion
	)

Apply in-place instrinsic lens distortion correction to an 8-bit fixed-point RGBA image.

Pinhole camera model with radial (barrel) distortion and tangential distortion.

cudaWarpPerspective() [1/4]

cudaError_t cudaWarpPerspective	(	float4 *	input,
		float4 *	output,
		uint32_t	width,
		uint32_t	height,
		const float	transform[3][3],
		bool	transform_inverted = false
	)

Apply 3x3 perspective warp to an 32-bit floating-point RGBA image.

The 3x3 matrix transform is in row-major order (transform[row][column]) If the transform has already been inverted, set transform_inverted to true.

Deprecated:

this function has been deprecated in lieu of the overload that accepts different dimensions for the input and output images.

cudaWarpPerspective() [2/4]

template<typename T >

cudaError_t cudaWarpPerspective	(	T *	input,
		uint32_t	inputWidth,
		uint32_t	inputHeight,
		T *	output,
		uint32_t	outputWidth,
		uint32_t	outputHeight,
		const float	transform[3][3],
		bool	transform_inverted = false
	)

Apply a 3x3 perspective warp to an image.

The 3x3 matrix transform is in row-major order (transform[row][column]) If the transform has already been inverted, set transform_inverted to true.

cudaWarpPerspective() [3/4]

cudaError_t cudaWarpPerspective	(	uchar4 *	input,
		uchar4 *	output,
		uint32_t	width,
		uint32_t	height,
		const float	transform[3][3],
		bool	transform_inverted = false
	)

Apply 3x3 perspective warp to an 8-bit fixed-point RGBA image.

The 3x3 matrix transform is in row-major order (transform[row][column]) If the transform has already been inverted, set transform_inverted to true.

Deprecated:

this function has been deprecated in lieu of the overload that accepts different dimensions for the input and output images.

cudaWarpPerspective() [4/4]

cudaError_t cudaWarpPerspective	(	void *	input,
		uint32_t	inputWidth,
		uint32_t	inputHeight,
		imageFormat	inputFormat,
		void *	output,
		uint32_t	outputWidth,
		uint32_t	outputHeight,
		imageFormat	outputFormat,
		const float	transform[3][3],
		bool	transform_inverted = false
	)

Apply a 3x3 perspective warp to an image.

The 3x3 matrix transform is in row-major order (transform[row][column]) If the transform has already been inverted, set transform_inverted to true.