unpack local (overlap) patches of image to column of mat, can be used to implement convolution, this expression allow unpack of a batch this is a version support unpacking multiple images after getting unpacked mat, we can use: output = dot(weight, mat) to get covolved results, the relations: More...

#include <unpack_patch2col.h>

Inheritance diagram for mshadow::expr::UnpackPatchToColXExp< SrcExp, DType, srcdim >:

Collaboration diagram for mshadow::expr::UnpackPatchToColXExp< SrcExp, DType, srcdim >:

Public Member Functions
	UnpackPatchToColXExp (const SrcExp &img, index_t psize_y, index_t psize_x, index_t pstride_y, index_t pstride_x, index_t pdilate_y, index_t pdilate_x)
	constructor More...

Public Member Functions inherited from mshadow::expr::MakeTensorExp< UnpackPatchToColXExp< SrcExp, DType, srcdim >, SrcExp, 2, DType >
const UnpackPatchToColXExp< SrcExp, DType, srcdim > &	real_self (void) const
	true self of subtype More...

Public Member Functions inherited from mshadow::expr::Exp< MakeTensorExp< UnpackPatchToColXExp< SrcExp, DType, srcdim >, SrcExp, dim, DType >, DType, type::kChainer >
const MakeTensorExp< UnpackPatchToColXExp< SrcExp, DType, srcdim >, SrcExp, dim, DType > &	self (void) const

MakeTensorExp< UnpackPatchToColXExp< SrcExp, DType, srcdim >, SrcExp, dim, DType > *	ptrself (void)

Public Attributes
const SrcExp &	img_
	source operand More...

index_t	psize_y_
	patch height More...

index_t	psize_x_
	patch width More...

index_t	pstride_y_
	patch stride More...

index_t	pstride_x_

index_t	pdilate_y_
	patch dilate More...

index_t	pdilate_x_

index_t	i_channel_
	number of input channel More...

index_t	i_height_
	height of img More...

index_t	i_width_
	width of img More...

Public Attributes inherited from mshadow::expr::MakeTensorExp< UnpackPatchToColXExp< SrcExp, DType, srcdim >, SrcExp, 2, DType >
Shape< dim >	shape_
	the shape of this expression More...

Detailed Description

template<typename SrcExp, typename DType, int srcdim>
struct mshadow::expr::UnpackPatchToColXExp< SrcExp, DType, srcdim >

unpack local (overlap) patches of image to column of mat, can be used to implement convolution, this expression allow unpack of a batch this is a version support unpacking multiple images after getting unpacked mat, we can use: output = dot(weight, mat) to get covolved results, the relations:

Template Parameters

SrcExp	source expression
dstdim	destination dimension