#include <reconfig.h>

Inheritance diagram for tesseract::Reconfig:

Public Member Functions
	Reconfig (const STRING &name, int ni, int x_scale, int y_scale)

virtual	~Reconfig ()

virtual StaticShape	OutputShape (const StaticShape &input_shape) const

virtual STRING	spec () const

virtual int	XScaleFactor () const

virtual bool	Serialize (TFile *fp) const

virtual bool	DeSerialize (TFile *fp)

virtual void	Forward (bool debug, const NetworkIO &input, const TransposedArray input_transpose, NetworkScratch scratch, NetworkIO *output)

virtual bool	Backward (bool debug, const NetworkIO &fwd_deltas, NetworkScratch scratch, NetworkIO back_deltas)

Public Member Functions inherited from tesseract::Network
	Network ()

	Network (NetworkType type, const STRING &name, int ni, int no)

virtual	~Network ()

NetworkType	type () const

bool	IsTraining () const

bool	needs_to_backprop () const

int	num_weights () const

int	NumInputs () const

int	NumOutputs () const

virtual StaticShape	InputShape () const

const STRING &	name () const

bool	TestFlag (NetworkFlags flag) const

virtual bool	IsPlumbingType () const

virtual void	SetEnableTraining (TrainingState state)

virtual void	SetNetworkFlags (uinT32 flags)

virtual int	InitWeights (float range, TRand *randomizer)

virtual void	ConvertToInt ()

virtual void	SetRandomizer (TRand *randomizer)

virtual bool	SetupNeedsBackprop (bool needs_backprop)

virtual void	CacheXScaleFactor (int factor)

virtual void	DebugWeights ()

virtual void	Update (float learning_rate, float momentum, int num_samples)

virtual void	CountAlternators (const Network &other, double same, double changed) const

void	DisplayForward (const NetworkIO &matrix)

void	DisplayBackward (const NetworkIO &matrix)

Protected Attributes
StrideMap	back_map_

inT32	x_scale_

inT32	y_scale_

Protected Attributes inherited from tesseract::Network
NetworkType	type_

TrainingState	training_

bool	needs_to_backprop_

inT32	network_flags_

inT32	ni_

inT32	no_

inT32	num_weights_

STRING	name_

ScrollView *	forward_win_

ScrollView *	backward_win_

TRand *	randomizer_

Additional Inherited Members
Static Public Member Functions inherited from tesseract::Network
static Network *	CreateFromFile (TFile *fp)

static void	ClearWindow (bool tess_coords, const char window_name, int width, int height, ScrollView *window)

static int	DisplayImage (Pix pix, ScrollView window)

Protected Member Functions inherited from tesseract::Network
double	Random (double range)

Static Protected Attributes inherited from tesseract::Network
static char const *const	kTypeNames [NT_COUNT]

Detailed Description

Definition at line 33 of file reconfig.h.

Constructor & Destructor Documentation

◆ Reconfig()

tesseract::Reconfig::Reconfig	(	const STRING &	name,
		int	ni,
		int	x_scale,
		int	y_scale
	)

Definition at line 24 of file reconfig.cpp.

   : Network(NT_RECONFIG, name, ni, ni * x_scale * y_scale),
     x_scale_(x_scale), y_scale_(y_scale) {
 }

◆ ~Reconfig()

tesseract::Reconfig::~Reconfig ( )

virtual

Definition at line 29 of file reconfig.cpp.

29 {

30 }

Member Function Documentation

◆ Backward()

bool tesseract::Reconfig::Backward	(	bool	debug,
		const NetworkIO &	fwd_deltas,
		NetworkScratch *	scratch,
		NetworkIO *	back_deltas
	)

virtual

Reimplemented from tesseract::Network.

Reimplemented in tesseract::Maxpool.

Definition at line 97 of file reconfig.cpp.

                                                 {
   back_deltas->ResizeToMap(fwd_deltas.int_mode(), back_map_, ni_);
   StrideMap::Index src_index(fwd_deltas.stride_map());
   do {
     int in_t = src_index.t();
     StrideMap::Index dest_index(back_deltas->stride_map(),
                                 src_index.index(FD_BATCH),
                                 src_index.index(FD_HEIGHT) * y_scale_,
                                 src_index.index(FD_WIDTH) * x_scale_);
     // Unstack x_scale_ groups of y_scale_ inputs that are together.
     for (int x = 0; x < x_scale_; ++x) {
       for (int y = 0; y < y_scale_; ++y) {
         StrideMap::Index dest_xy(dest_index);
         if (dest_xy.AddOffset(x, FD_WIDTH) && dest_xy.AddOffset(y, FD_HEIGHT)) {
           back_deltas->CopyTimeStepGeneral(dest_xy.t(), 0, ni_, fwd_deltas,
                                            in_t, (x * y_scale_ + y) * ni_);
         }
       }
     }
   } while (src_index.Increment());
   return needs_to_backprop_;
 }

◆ DeSerialize()

bool tesseract::Reconfig::DeSerialize ( TFile * fp )

virtual

Reimplemented from tesseract::Network.

Reimplemented in tesseract::Maxpool.

Definition at line 62 of file reconfig.cpp.

                                     {
   if (fp->FReadEndian(&x_scale_, sizeof(x_scale_), 1) != 1) return false;
   if (fp->FReadEndian(&y_scale_, sizeof(y_scale_), 1) != 1) return false;
   no_ = ni_ * x_scale_ * y_scale_;
   return true;
 }

◆ Forward()

void tesseract::Reconfig::Forward	(	bool	debug,
		const NetworkIO &	input,
		const TransposedArray *	input_transpose,
		NetworkScratch *	scratch,
		NetworkIO *	output
	)

virtual

Reimplemented from tesseract::Network.

Reimplemented in tesseract::Maxpool.

Definition at line 71 of file reconfig.cpp.

                                                                    {
   output->ResizeScaled(input, x_scale_, y_scale_, no_);
   back_map_ = input.stride_map();
   StrideMap::Index dest_index(output->stride_map());
   do {
     int out_t = dest_index.t();
     StrideMap::Index src_index(input.stride_map(), dest_index.index(FD_BATCH),
                                dest_index.index(FD_HEIGHT) * y_scale_,
                                dest_index.index(FD_WIDTH) * x_scale_);
     // Stack x_scale_ groups of y_scale_ inputs together.
     for (int x = 0; x < x_scale_; ++x) {
       for (int y = 0; y < y_scale_; ++y) {
         StrideMap::Index src_xy(src_index);
         if (src_xy.AddOffset(x, FD_WIDTH) && src_xy.AddOffset(y, FD_HEIGHT)) {
           output->CopyTimeStepGeneral(out_t, (x * y_scale_ + y) * ni_, ni_,
                                       input, src_xy.t(), 0);
         }
       }
     }
   } while (dest_index.Increment());
 }

◆ OutputShape()

StaticShape tesseract::Reconfig::OutputShape ( const StaticShape & input_shape ) const

virtual

Reimplemented from tesseract::Network.

Definition at line 34 of file reconfig.cpp.

                                                                       {
   StaticShape result = input_shape;
   result.set_height(result.height() / y_scale_);
   result.set_width(result.width() / x_scale_);
   if (type_ != NT_MAXPOOL)
     result.set_depth(result.depth() * y_scale_ * x_scale_);
   return result;
 }

◆ Serialize()

bool tesseract::Reconfig::Serialize ( TFile * fp ) const

virtual

Reimplemented from tesseract::Network.

Definition at line 54 of file reconfig.cpp.

                                         {
   if (!Network::Serialize(fp)) return false;
   if (fp->FWrite(&x_scale_, sizeof(x_scale_), 1) != 1) return false;
   if (fp->FWrite(&y_scale_, sizeof(y_scale_), 1) != 1) return false;
   return true;
 }

◆ spec()

virtual STRING tesseract::Reconfig::spec ( ) const

inlinevirtual

Reimplemented from tesseract::Network.

Reimplemented in tesseract::Maxpool.

Definition at line 42 of file reconfig.h.

                               {
     STRING spec;
     spec.add_str_int("S", y_scale_);
     spec.add_str_int(",", x_scale_);
     return spec;
   }

◆ XScaleFactor()

int tesseract::Reconfig::XScaleFactor ( ) const

virtual

Reimplemented from tesseract::Network.

Definition at line 49 of file reconfig.cpp.

                                  {
   return x_scale_;
 }

Member Data Documentation

◆ back_map_

StrideMap tesseract::Reconfig::back_map_

protected

Definition at line 76 of file reconfig.h.

◆ x_scale_

inT32 tesseract::Reconfig::x_scale_

protected

Definition at line 78 of file reconfig.h.

◆ y_scale_

inT32 tesseract::Reconfig::y_scale_

protected

Definition at line 79 of file reconfig.h.

The documentation for this class was generated from the following files:

/home/stefan/src/github/tesseract-ocr/tesseract/lstm/reconfig.h
/home/stefan/src/github/tesseract-ocr/tesseract/lstm/reconfig.cpp

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Reconfig()

◆ ~Reconfig()

Member Function Documentation

◆ Backward()

◆ DeSerialize()

◆ Forward()

◆ OutputShape()

◆ Serialize()

◆ spec()

◆ XScaleFactor()

Member Data Documentation

◆ back_map_

◆ x_scale_

◆ y_scale_