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tesseract/ccmain/pgedit.cpp
Ray Smith 0e868ef377 Major change to improve layout analysis for heavily diacritic languages: 
Tha, Vie, Kan, Tel etc.
There is a new overlap detector that detects when diacritics
cause a big increase in textline overlap. In such cases, diacritics from
overlap regions are kept separate from layout analysis completely, allowing
textline formation to happen without them. The diacritics are then assigned
to 0, 1 or 2 close words at the end of layout analysis, using and modifying
an old noise detection data path.
The stored diacritics are used or not during recognition according to the
character classifier's liking for them.
2015-05-12 16:47:02 -07:00

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/**********************************************************************
* File: pgedit.cpp (Formerly pgeditor.c)
* Description: Page structure file editor
* Author: Phil Cheatle
* Created: Thu Oct 10 16:25:24 BST 1991
*
*(C) Copyright 1991, Hewlett-Packard Ltd.
** Licensed under the Apache License, Version 2.0(the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
** http:// www.apache.org/licenses/LICENSE-2.0
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*
**********************************************************************/
#ifdef _MSC_VER
#pragma warning(disable:4244) // Conversion warnings
#endif
// Include automatically generated configuration file if running autoconf.
#ifdef HAVE_CONFIG_H
#include "config_auto.h"
#endif
#include "pgedit.h"
#include <ctype.h>
#include <math.h>
#include "blread.h"
#include "control.h"
#include "paramsd.h"
#include "pageres.h"
#include "tordmain.h"
#include "scrollview.h"
#include "svmnode.h"
#include "statistc.h"
#include "tesseractclass.h"
#include "werdit.h"
#ifndef GRAPHICS_DISABLED
#define ASC_HEIGHT (2 * kBlnBaselineOffset + kBlnXHeight)
#define X_HEIGHT (kBlnBaselineOffset + kBlnXHeight)
#define BL_HEIGHT kBlnBaselineOffset
#define DESC_HEIGHT 0
#define MAXSPACING 128 /*max expected spacing in pix */
const ERRCODE EMPTYBLOCKLIST = "No blocks to edit";
enum CMD_EVENTS
{
NULL_CMD_EVENT,
CHANGE_DISP_CMD_EVENT,
DUMP_WERD_CMD_EVENT,
SHOW_POINT_CMD_EVENT,
SHOW_BLN_WERD_CMD_EVENT,
DEBUG_WERD_CMD_EVENT,
BLAMER_CMD_EVENT,
BOUNDING_BOX_CMD_EVENT,
CORRECT_TEXT_CMD_EVENT,
POLYGONAL_CMD_EVENT,
BL_NORM_CMD_EVENT,
BITMAP_CMD_EVENT,
IMAGE_CMD_EVENT,
BLOCKS_CMD_EVENT,
BASELINES_CMD_EVENT,
UNIFORM_DISP_CMD_EVENT,
REFRESH_CMD_EVENT,
QUIT_CMD_EVENT,
RECOG_WERDS,
RECOG_PSEUDO,
SHOW_BLOB_FEATURES,
SHOW_SUBSCRIPT_CMD_EVENT,
SHOW_SUPERSCRIPT_CMD_EVENT,
SHOW_ITALIC_CMD_EVENT,
SHOW_BOLD_CMD_EVENT,
SHOW_UNDERLINE_CMD_EVENT,
SHOW_FIXEDPITCH_CMD_EVENT,
SHOW_SERIF_CMD_EVENT,
SHOW_SMALLCAPS_CMD_EVENT,
SHOW_DROPCAPS_CMD_EVENT,
};
enum ColorationMode {
CM_RAINBOW,
CM_SUBSCRIPT,
CM_SUPERSCRIPT,
CM_ITALIC,
CM_BOLD,
CM_UNDERLINE,
CM_FIXEDPITCH,
CM_SERIF,
CM_SMALLCAPS,
CM_DROPCAPS
};
/*
*
* Some global data
*
*/
ScrollView* image_win;
ParamsEditor* pe;
bool stillRunning = false;
#ifdef __UNIX__
FILE *debug_window = NULL; // opened on demand
#endif
ScrollView* bln_word_window = NULL; // baseline norm words
CMD_EVENTS mode = CHANGE_DISP_CMD_EVENT; // selected words op
bool recog_done = false; // recog_all_words was called
// These variables should remain global, since they are only used for the
// debug mode (in which only a single Tesseract thread/instance will be exist).
BITS16 word_display_mode;
static ColorationMode color_mode = CM_RAINBOW;
BOOL8 display_image = FALSE;
BOOL8 display_blocks = FALSE;
BOOL8 display_baselines = FALSE;
PAGE_RES *current_page_res = NULL;
STRING_VAR(editor_image_win_name, "EditorImage",
"Editor image window name");
INT_VAR(editor_image_xpos, 590, "Editor image X Pos");
INT_VAR(editor_image_ypos, 10, "Editor image Y Pos");
INT_VAR(editor_image_menuheight, 50, "Add to image height for menu bar");
INT_VAR(editor_image_word_bb_color, ScrollView::BLUE,
"Word bounding box colour");
INT_VAR(editor_image_blob_bb_color, ScrollView::YELLOW,
"Blob bounding box colour");
INT_VAR(editor_image_text_color, ScrollView::WHITE,
"Correct text colour");
STRING_VAR(editor_dbwin_name, "EditorDBWin",
"Editor debug window name");
INT_VAR(editor_dbwin_xpos, 50, "Editor debug window X Pos");
INT_VAR(editor_dbwin_ypos, 500, "Editor debug window Y Pos");
INT_VAR(editor_dbwin_height, 24, "Editor debug window height");
INT_VAR(editor_dbwin_width, 80, "Editor debug window width");
STRING_VAR(editor_word_name, "BlnWords", "BL normalized word window");
INT_VAR(editor_word_xpos, 60, "Word window X Pos");
INT_VAR(editor_word_ypos, 510, "Word window Y Pos");
INT_VAR(editor_word_height, 240, "Word window height");
INT_VAR(editor_word_width, 655, "Word window width");
STRING_VAR(editor_debug_config_file, "", "Config file to apply to single words");
class BlnEventHandler : public SVEventHandler {
public:
void Notify(const SVEvent* sv_event) {
if (sv_event->type == SVET_DESTROY)
bln_word_window = NULL;
else if (sv_event->type == SVET_CLICK)
show_point(current_page_res, sv_event->x, sv_event->y);
}
};
/**
* bln_word_window_handle()
*
* @return a WINDOW for the word window, creating it if necessary
*/
ScrollView* bln_word_window_handle() { // return handle
// not opened yet
if (bln_word_window == NULL) {
pgeditor_msg("Creating BLN word window...");
bln_word_window = new ScrollView(editor_word_name.string(),
editor_word_xpos, editor_word_ypos, editor_word_width,
editor_word_height, 4000, 4000, true);
BlnEventHandler* a = new BlnEventHandler();
bln_word_window->AddEventHandler(a);
pgeditor_msg("Creating BLN word window...Done");
}
return bln_word_window;
}
/**
* build_image_window()
*
* Destroy the existing image window if there is one. Work out how big the
* new window needs to be. Create it and re-display.
*/
void build_image_window(int width, int height) {
if (image_win != NULL) { delete image_win; }
image_win = new ScrollView(editor_image_win_name.string(),
editor_image_xpos, editor_image_ypos,
width + 1,
height + editor_image_menuheight + 1,
width,
height,
true);
}
/**
* display_bln_lines()
*
* Display normalized baseline, x-height, ascender limit and descender limit
*/
void display_bln_lines(ScrollView* window,
ScrollView::Color colour,
float scale_factor,
float y_offset,
float minx,
float maxx) {
window->Pen(colour);
window->Line(minx, y_offset + scale_factor * DESC_HEIGHT,
maxx, y_offset + scale_factor * DESC_HEIGHT);
window->Line(minx, y_offset + scale_factor * BL_HEIGHT,
maxx, y_offset + scale_factor * BL_HEIGHT);
window->Line(minx, y_offset + scale_factor * X_HEIGHT,
maxx, y_offset + scale_factor * X_HEIGHT);
window->Line(minx, y_offset + scale_factor * ASC_HEIGHT,
maxx, y_offset + scale_factor * ASC_HEIGHT);
}
/**
* notify()
*
* Event handler that processes incoming events, either forwarding
* them to process_cmd_win_event or process_image_event.
*
*/
void PGEventHandler::Notify(const SVEvent* event) {
char myval = '0';
if (event->type == SVET_POPUP) {
pe->Notify(event);
} // These are handled by ParamsEditor
else if (event->type == SVET_EXIT) { stillRunning = false; }
else if (event->type == SVET_MENU) {
if (strcmp(event->parameter, "true") == 0) { myval = 'T'; }
else if (strcmp(event->parameter, "false") == 0) { myval = 'F'; }
tess_->process_cmd_win_event(event->command_id, &myval);
}
else {
tess_->process_image_event(*event);
}
}
/**
* build_menu()
*
* Construct the menu tree used by the command window
*/
namespace tesseract {
SVMenuNode *Tesseract::build_menu_new() {
SVMenuNode* parent_menu;
SVMenuNode* root_menu_item = new SVMenuNode();
SVMenuNode* modes_menu_item = root_menu_item->AddChild("MODES");
modes_menu_item->AddChild("Change Display", CHANGE_DISP_CMD_EVENT);
modes_menu_item->AddChild("Dump Word", DUMP_WERD_CMD_EVENT);
modes_menu_item->AddChild("Show Point", SHOW_POINT_CMD_EVENT);
modes_menu_item->AddChild("Show BL Norm Word", SHOW_BLN_WERD_CMD_EVENT);
modes_menu_item->AddChild("Config Words", DEBUG_WERD_CMD_EVENT);
modes_menu_item->AddChild("Recog Words", RECOG_WERDS);
modes_menu_item->AddChild("Recog Blobs", RECOG_PSEUDO);
modes_menu_item->AddChild("Show Blob Features", SHOW_BLOB_FEATURES);
parent_menu = root_menu_item->AddChild("DISPLAY");
parent_menu->AddChild("Blamer", BLAMER_CMD_EVENT, FALSE);
parent_menu->AddChild("Bounding Boxes", BOUNDING_BOX_CMD_EVENT, FALSE);
parent_menu->AddChild("Correct Text", CORRECT_TEXT_CMD_EVENT, FALSE);
parent_menu->AddChild("Polygonal Approx", POLYGONAL_CMD_EVENT, FALSE);
parent_menu->AddChild("Baseline Normalized", BL_NORM_CMD_EVENT, FALSE);
parent_menu->AddChild("Edge Steps", BITMAP_CMD_EVENT, TRUE);
parent_menu->AddChild("Subscripts", SHOW_SUBSCRIPT_CMD_EVENT);
parent_menu->AddChild("Superscripts", SHOW_SUPERSCRIPT_CMD_EVENT);
parent_menu->AddChild("Italics", SHOW_ITALIC_CMD_EVENT);
parent_menu->AddChild("Bold", SHOW_BOLD_CMD_EVENT);
parent_menu->AddChild("Underline", SHOW_UNDERLINE_CMD_EVENT);
parent_menu->AddChild("FixedPitch", SHOW_FIXEDPITCH_CMD_EVENT);
parent_menu->AddChild("Serifs", SHOW_SERIF_CMD_EVENT);
parent_menu->AddChild("SmallCaps", SHOW_SMALLCAPS_CMD_EVENT);
parent_menu->AddChild("DropCaps", SHOW_DROPCAPS_CMD_EVENT);
parent_menu = root_menu_item->AddChild("OTHER");
parent_menu->AddChild("Quit", QUIT_CMD_EVENT);
parent_menu->AddChild("Show Image", IMAGE_CMD_EVENT, FALSE);
parent_menu->AddChild("ShowBlock Outlines", BLOCKS_CMD_EVENT, FALSE);
parent_menu->AddChild("Show Baselines", BASELINES_CMD_EVENT, FALSE);
parent_menu->AddChild("Uniform Display", UNIFORM_DISP_CMD_EVENT);
parent_menu->AddChild("Refresh Display", REFRESH_CMD_EVENT);
return root_menu_item;
}
/**
* do_re_display()
*
* Redisplay page
*/
void Tesseract::do_re_display(
BOOL8 (tesseract::Tesseract::*word_painter)(PAGE_RES_IT* pr_it)) {
int block_count = 1;
image_win->Clear();
if (display_image != 0) {
image_win->Image(pix_binary_, 0, 0);
}
PAGE_RES_IT pr_it(current_page_res);
for (WERD_RES* word = pr_it.word(); word != NULL; word = pr_it.forward()) {
(this->*word_painter)(&pr_it);
if (display_baselines && pr_it.row() != pr_it.prev_row())
pr_it.row()->row->plot_baseline(image_win, ScrollView::GREEN);
if (display_blocks && pr_it.block() != pr_it.prev_block())
pr_it.block()->block->plot(image_win, block_count++, ScrollView::RED);
}
image_win->Update();
}
/**
* pgeditor_main()
*
* Top level editor operation:
* Setup a new window and an according event handler
*
*/
void Tesseract::pgeditor_main(int width, int height, PAGE_RES *page_res) {
current_page_res = page_res;
if (current_page_res->block_res_list.empty())
return;
recog_done = false;
stillRunning = true;
build_image_window(width, height);
word_display_mode.turn_on_bit(DF_EDGE_STEP);
do_re_display(&tesseract::Tesseract::word_set_display);
#ifndef GRAPHICS_DISABLED
pe = new ParamsEditor(this, image_win);
#endif
PGEventHandler pgEventHandler(this);
image_win->AddEventHandler(&pgEventHandler);
image_win->AddMessageBox();
SVMenuNode* svMenuRoot = build_menu_new();
svMenuRoot->BuildMenu(image_win);
image_win->SetVisible(true);
image_win->AwaitEvent(SVET_DESTROY);
image_win->AddEventHandler(NULL);
}
} // namespace tesseract
/**
* pgeditor_msg()
*
* Display a message - in the command window if there is one, or to stdout
*/
void pgeditor_msg( // message display
const char *msg) {
image_win->AddMessage(msg);
}
/**
* pgeditor_show_point()
*
* Display the coordinates of a point in the command window
*/
void pgeditor_show_point( // display coords
SVEvent *event) {
image_win->AddMessage("Pointing at(%d, %d)", event->x, event->y);
}
/**
* process_cmd_win_event()
*
* Process a command returned from the command window
* (Just call the appropriate command handler)
*/
namespace tesseract {
BOOL8 Tesseract::process_cmd_win_event( // UI command semantics
inT32 cmd_event, // which menu item?
char *new_value // any prompt data
) {
char msg[160];
BOOL8 exit = FALSE;
color_mode = CM_RAINBOW;
// Run recognition on the full page if needed.
switch (cmd_event) {
case BLAMER_CMD_EVENT:
case SHOW_SUBSCRIPT_CMD_EVENT:
case SHOW_SUPERSCRIPT_CMD_EVENT:
case SHOW_ITALIC_CMD_EVENT:
case SHOW_BOLD_CMD_EVENT:
case SHOW_UNDERLINE_CMD_EVENT:
case SHOW_FIXEDPITCH_CMD_EVENT:
case SHOW_SERIF_CMD_EVENT:
case SHOW_SMALLCAPS_CMD_EVENT:
case SHOW_DROPCAPS_CMD_EVENT:
if (!recog_done) {
recog_all_words(current_page_res, NULL, NULL, NULL, 0);
recog_done = true;
}
break;
default:
break;
}
switch (cmd_event) {
case NULL_CMD_EVENT:
break;
case CHANGE_DISP_CMD_EVENT:
case DUMP_WERD_CMD_EVENT:
case SHOW_POINT_CMD_EVENT:
case SHOW_BLN_WERD_CMD_EVENT:
case RECOG_WERDS:
case RECOG_PSEUDO:
case SHOW_BLOB_FEATURES:
mode =(CMD_EVENTS) cmd_event;
break;
case DEBUG_WERD_CMD_EVENT:
mode = DEBUG_WERD_CMD_EVENT;
word_config_ = image_win->ShowInputDialog("Config File Name");
break;
case BOUNDING_BOX_CMD_EVENT:
if (new_value[0] == 'T')
word_display_mode.turn_on_bit(DF_BOX);
else
word_display_mode.turn_off_bit(DF_BOX);
mode = CHANGE_DISP_CMD_EVENT;
break;
case BLAMER_CMD_EVENT:
if (new_value[0] == 'T')
word_display_mode.turn_on_bit(DF_BLAMER);
else
word_display_mode.turn_off_bit(DF_BLAMER);
do_re_display(&tesseract::Tesseract::word_display);
mode = CHANGE_DISP_CMD_EVENT;
break;
case CORRECT_TEXT_CMD_EVENT:
if (new_value[0] == 'T')
word_display_mode.turn_on_bit(DF_TEXT);
else
word_display_mode.turn_off_bit(DF_TEXT);
mode = CHANGE_DISP_CMD_EVENT;
break;
case POLYGONAL_CMD_EVENT:
if (new_value[0] == 'T')
word_display_mode.turn_on_bit(DF_POLYGONAL);
else
word_display_mode.turn_off_bit(DF_POLYGONAL);
mode = CHANGE_DISP_CMD_EVENT;
break;
case BL_NORM_CMD_EVENT:
if (new_value[0] == 'T')
word_display_mode.turn_on_bit(DF_BN_POLYGONAL);
else
word_display_mode.turn_off_bit(DF_BN_POLYGONAL);
mode = CHANGE_DISP_CMD_EVENT;
break;
case BITMAP_CMD_EVENT:
if (new_value[0] == 'T')
word_display_mode.turn_on_bit(DF_EDGE_STEP);
else
word_display_mode.turn_off_bit(DF_EDGE_STEP);
mode = CHANGE_DISP_CMD_EVENT;
break;
case UNIFORM_DISP_CMD_EVENT:
do_re_display(&tesseract::Tesseract::word_set_display);
break;
case IMAGE_CMD_EVENT:
display_image =(new_value[0] == 'T');
do_re_display(&tesseract::Tesseract::word_display);
break;
case BLOCKS_CMD_EVENT:
display_blocks =(new_value[0] == 'T');
do_re_display(&tesseract::Tesseract::word_display);
break;
case BASELINES_CMD_EVENT:
display_baselines =(new_value[0] == 'T');
do_re_display(&tesseract::Tesseract::word_display);
break;
case SHOW_SUBSCRIPT_CMD_EVENT:
color_mode = CM_SUBSCRIPT;
do_re_display(&tesseract::Tesseract::word_display);
break;
case SHOW_SUPERSCRIPT_CMD_EVENT:
color_mode = CM_SUPERSCRIPT;
do_re_display(&tesseract::Tesseract::word_display);
break;
case SHOW_ITALIC_CMD_EVENT:
color_mode = CM_ITALIC;
do_re_display(&tesseract::Tesseract::word_display);
break;
case SHOW_BOLD_CMD_EVENT:
color_mode = CM_BOLD;
do_re_display(&tesseract::Tesseract::word_display);
break;
case SHOW_UNDERLINE_CMD_EVENT:
color_mode = CM_UNDERLINE;
do_re_display(&tesseract::Tesseract::word_display);
break;
case SHOW_FIXEDPITCH_CMD_EVENT:
color_mode = CM_FIXEDPITCH;
do_re_display(&tesseract::Tesseract::word_display);
break;
case SHOW_SERIF_CMD_EVENT:
color_mode = CM_SERIF;
do_re_display(&tesseract::Tesseract::word_display);
break;
case SHOW_SMALLCAPS_CMD_EVENT:
color_mode = CM_SMALLCAPS;
do_re_display(&tesseract::Tesseract::word_display);
break;
case SHOW_DROPCAPS_CMD_EVENT:
color_mode = CM_DROPCAPS;
do_re_display(&tesseract::Tesseract::word_display);
break;
case REFRESH_CMD_EVENT:
do_re_display(&tesseract::Tesseract::word_display);
break;
case QUIT_CMD_EVENT:
exit = TRUE;
ScrollView::Exit();
break;
default:
sprintf(msg, "Unrecognised event " INT32FORMAT "(%s)",
cmd_event, new_value);
image_win->AddMessage(msg);
break;
}
return exit;
}
/**
* process_image_event()
*
* User has done something in the image window - mouse down or up. Work out
* what it is and do something with it.
* If DOWN - just remember where it was.
* If UP - for each word in the selected area do the operation defined by
* the current mode.
*/
void Tesseract::process_image_event( // action in image win
const SVEvent &event) {
// The following variable should remain static, since it is used by
// debug editor, which uses a single Tesseract instance.
static ICOORD down;
ICOORD up;
TBOX selection_box;
char msg[80];
switch(event.type) {
case SVET_SELECTION:
if (event.type == SVET_SELECTION) {
down.set_x(event.x + event.x_size);
down.set_y(event.y + event.y_size);
if (mode == SHOW_POINT_CMD_EVENT)
show_point(current_page_res, event.x, event.y);
}
up.set_x(event.x);
up.set_y(event.y);
selection_box = TBOX(down, up);
switch(mode) {
case CHANGE_DISP_CMD_EVENT:
process_selected_words(
current_page_res,
selection_box,
&tesseract::Tesseract::word_blank_and_set_display);
break;
case DUMP_WERD_CMD_EVENT:
process_selected_words(current_page_res,
selection_box,
&tesseract::Tesseract::word_dumper);
break;
case SHOW_BLN_WERD_CMD_EVENT:
process_selected_words(current_page_res,
selection_box,
&tesseract::Tesseract::word_bln_display);
break;
case DEBUG_WERD_CMD_EVENT:
debug_word(current_page_res, selection_box);
break;
case SHOW_POINT_CMD_EVENT:
break; // ignore up event
case RECOG_WERDS:
image_win->AddMessage("Recogging selected words");
this->process_selected_words(current_page_res,
selection_box,
&Tesseract::recog_interactive);
break;
case RECOG_PSEUDO:
image_win->AddMessage("Recogging selected blobs");
recog_pseudo_word(current_page_res, selection_box);
break;
case SHOW_BLOB_FEATURES:
blob_feature_display(current_page_res, selection_box);
break;
default:
sprintf(msg, "Mode %d not yet implemented", mode);
image_win->AddMessage(msg);
break;
}
default:
break;
}
}
/**
* debug_word
*
* Process the whole image, but load word_config_ for the selected word(s).
*/
void Tesseract::debug_word(PAGE_RES* page_res, const TBOX &selection_box) {
ResetAdaptiveClassifier();
recog_all_words(page_res, NULL, &selection_box, word_config_.string(), 0);
}
} // namespace tesseract
/**
* show_point()
*
* Show coords of point, blob bounding box, word bounding box and offset from
* row baseline
*/
void show_point(PAGE_RES* page_res, float x, float y) {
FCOORD pt(x, y);
PAGE_RES_IT pr_it(page_res);
const int kBufsize = 512;
char msg[kBufsize];
char *msg_ptr = msg;
msg_ptr += sprintf(msg_ptr, "Pt:(%0.3f, %0.3f) ", x, y);
for (WERD_RES* word = pr_it.word(); word != NULL; word = pr_it.forward()) {
if (pr_it.row() != pr_it.prev_row() &&
pr_it.row()->row->bounding_box().contains(pt)) {
msg_ptr += sprintf(msg_ptr, "BL(x)=%0.3f ",
pr_it.row()->row->base_line(x));
}
if (word->word->bounding_box().contains(pt)) {
TBOX box = word->word->bounding_box();
msg_ptr += sprintf(msg_ptr, "Wd(%d, %d)/(%d, %d) ",
box.left(), box.bottom(),
box.right(), box.top());
C_BLOB_IT cblob_it(word->word->cblob_list());
for (cblob_it.mark_cycle_pt();
!cblob_it.cycled_list();
cblob_it.forward()) {
C_BLOB* cblob = cblob_it.data();
box = cblob->bounding_box();
if (box.contains(pt)) {
msg_ptr += sprintf(msg_ptr,
"CBlb(%d, %d)/(%d, %d) ",
box.left(), box.bottom(),
box.right(), box.top());
}
}
}
}
image_win->AddMessage(msg);
}
/**********************************************************************
* WERD PROCESSOR FUNCTIONS
* ========================
*
* These routines are invoked by one or more of:
* process_all_words()
* process_selected_words()
* or
* process_all_words_it()
* process_selected_words_it()
* for each word to be processed
**********************************************************************/
/**
* word_blank_and_set_display() Word processor
*
* Blank display of word then redisplay word according to current display mode
* settings
*/
#endif // GRAPHICS_DISABLED
namespace tesseract {
#ifndef GRAPHICS_DISABLED
BOOL8 Tesseract:: word_blank_and_set_display(PAGE_RES_IT* pr_it) {
pr_it->word()->word->bounding_box().plot(image_win, ScrollView::BLACK,
ScrollView::BLACK);
return word_set_display(pr_it);
}
/**
* word_bln_display()
*
* Normalize word and display in word window
*/
BOOL8 Tesseract::word_bln_display(PAGE_RES_IT* pr_it) {
WERD_RES* word_res = pr_it->word();
if (word_res->chopped_word == NULL) {
// Setup word normalization parameters.
word_res->SetupForRecognition(unicharset, this, BestPix(),
tessedit_ocr_engine_mode, NULL,
classify_bln_numeric_mode,
textord_use_cjk_fp_model,
poly_allow_detailed_fx,
pr_it->row()->row, pr_it->block()->block);
}
bln_word_window_handle()->Clear();
display_bln_lines(bln_word_window_handle(), ScrollView::CYAN,
1.0, 0.0f, -1000.0f, 1000.0f);
C_BLOB_IT it(word_res->word->cblob_list());
ScrollView::Color color = WERD::NextColor(ScrollView::BLACK);
for (it.mark_cycle_pt(); !it.cycled_list(); it.forward()) {
it.data()->plot_normed(word_res->denorm, color, ScrollView::BROWN,
bln_word_window_handle());
color = WERD::NextColor(color);
}
bln_word_window_handle()->Update();
return TRUE;
}
/**
* word_display() Word Processor
*
* Display a word according to its display modes
*/
BOOL8 Tesseract::word_display(PAGE_RES_IT* pr_it) {
WERD_RES* word_res = pr_it->word();
WERD* word = word_res->word;
TBOX word_bb; // word bounding box
int word_height; // ht of word BB
BOOL8 displayed_something = FALSE;
float shift; // from bot left
C_BLOB_IT c_it; // cblob iterator
if (color_mode != CM_RAINBOW && word_res->box_word != NULL) {
BoxWord* box_word = word_res->box_word;
WERD_CHOICE* best_choice = word_res->best_choice;
int length = box_word->length();
if (word_res->fontinfo == NULL) return false;
const FontInfo& font_info = *word_res->fontinfo;
for (int i = 0; i < length; ++i) {
ScrollView::Color color = ScrollView::GREEN;
switch (color_mode) {
case CM_SUBSCRIPT:
if (best_choice->BlobPosition(i) == SP_SUBSCRIPT)
color = ScrollView::RED;
break;
case CM_SUPERSCRIPT:
if (best_choice->BlobPosition(i) == SP_SUPERSCRIPT)
color = ScrollView::RED;
break;
case CM_ITALIC:
if (font_info.is_italic())
color = ScrollView::RED;
break;
case CM_BOLD:
if (font_info.is_bold())
color = ScrollView::RED;
break;
case CM_FIXEDPITCH:
if (font_info.is_fixed_pitch())
color = ScrollView::RED;
break;
case CM_SERIF:
if (font_info.is_serif())
color = ScrollView::RED;
break;
case CM_SMALLCAPS:
if (word_res->small_caps)
color = ScrollView::RED;
break;
case CM_DROPCAPS:
if (best_choice->BlobPosition(i) == SP_DROPCAP)
color = ScrollView::RED;
break;
// TODO(rays) underline is currently completely unsupported.
case CM_UNDERLINE:
default:
break;
}
image_win->Pen(color);
TBOX box = box_word->BlobBox(i);
image_win->Rectangle(box.left(), box.bottom(), box.right(), box.top());
}
return true;
}
/*
Note the double coercions of(COLOUR)((inT32)editor_image_word_bb_color)
etc. are to keep the compiler happy.
*/
// display bounding box
if (word->display_flag(DF_BOX)) {
word->bounding_box().plot(image_win,
(ScrollView::Color)((inT32)
editor_image_word_bb_color),
(ScrollView::Color)((inT32)
editor_image_word_bb_color));
ScrollView::Color c = (ScrollView::Color)
((inT32) editor_image_blob_bb_color);
image_win->Pen(c);
c_it.set_to_list(word->cblob_list());
for (c_it.mark_cycle_pt(); !c_it.cycled_list(); c_it.forward())
c_it.data()->bounding_box().plot(image_win);
displayed_something = TRUE;
}
// display edge steps
if (word->display_flag(DF_EDGE_STEP)) { // edgesteps available
word->plot(image_win); // rainbow colors
displayed_something = TRUE;
}
// display poly approx
if (word->display_flag(DF_POLYGONAL)) {
// need to convert
TWERD* tword = TWERD::PolygonalCopy(poly_allow_detailed_fx, word);
tword->plot(image_win);
delete tword;
displayed_something = TRUE;
}
// Display correct text and blamer information.
STRING text;
STRING blame;
if (word->display_flag(DF_TEXT) && word->text() != NULL) {
text = word->text();
}
if (word->display_flag(DF_BLAMER) &&
!(word_res->blamer_bundle != NULL &&
word_res->blamer_bundle->incorrect_result_reason() == IRR_CORRECT)) {
text = "";
const BlamerBundle *blamer_bundle = word_res->blamer_bundle;
if (blamer_bundle == NULL) {
text += "NULL";
} else {
text = blamer_bundle->TruthString();
}
text += " -> ";
STRING best_choice_str;
if (word_res->best_choice == NULL) {
best_choice_str = "NULL";
} else {
word_res->best_choice->string_and_lengths(&best_choice_str, NULL);
}
text += best_choice_str;
IncorrectResultReason reason = (blamer_bundle == NULL) ?
IRR_PAGE_LAYOUT : blamer_bundle->incorrect_result_reason();
ASSERT_HOST(reason < IRR_NUM_REASONS)
blame += " [";
blame += BlamerBundle::IncorrectReasonName(reason);
blame += "]";
}
if (text.length() > 0) {
word_bb = word->bounding_box();
image_win->Pen(ScrollView::RED);
word_height = word_bb.height();
int text_height = 0.50 * word_height;
if (text_height > 20) text_height = 20;
image_win->TextAttributes("Arial", text_height, false, false, false);
shift = (word_height < word_bb.width()) ? 0.25 * word_height : 0.0f;
image_win->Text(word_bb.left() + shift,
word_bb.bottom() + 0.25 * word_height, text.string());
if (blame.length() > 0) {
image_win->Text(word_bb.left() + shift,
word_bb.bottom() + 0.25 * word_height - text_height,
blame.string());
}
displayed_something = TRUE;
}
if (!displayed_something) // display BBox anyway
word->bounding_box().plot(image_win,
(ScrollView::Color)((inT32) editor_image_word_bb_color),
(ScrollView::Color)((inT32)
editor_image_word_bb_color));
return TRUE;
}
#endif // GRAPHICS_DISABLED
/**
* word_dumper()
*
* Dump members to the debug window
*/
BOOL8 Tesseract::word_dumper(PAGE_RES_IT* pr_it) {
if (pr_it->block()->block != NULL) {
tprintf("\nBlock data...\n");
pr_it->block()->block->print(NULL, FALSE);
}
tprintf("\nRow data...\n");
pr_it->row()->row->print(NULL);
tprintf("\nWord data...\n");
WERD_RES* word_res = pr_it->word();
word_res->word->print();
if (word_res->blamer_bundle != NULL && wordrec_debug_blamer &&
word_res->blamer_bundle->incorrect_result_reason() != IRR_CORRECT) {
tprintf("Current blamer debug: %s\n",
word_res->blamer_bundle->debug().string());
}
return TRUE;
}
#ifndef GRAPHICS_DISABLED
/**
* word_set_display() Word processor
*
* Display word according to current display mode settings
*/
BOOL8 Tesseract::word_set_display(PAGE_RES_IT* pr_it) {
WERD* word = pr_it->word()->word;
word->set_display_flag(DF_BOX, word_display_mode.bit(DF_BOX));
word->set_display_flag(DF_TEXT, word_display_mode.bit(DF_TEXT));
word->set_display_flag(DF_POLYGONAL, word_display_mode.bit(DF_POLYGONAL));
word->set_display_flag(DF_EDGE_STEP, word_display_mode.bit(DF_EDGE_STEP));
word->set_display_flag(DF_BN_POLYGONAL,
word_display_mode.bit(DF_BN_POLYGONAL));
word->set_display_flag(DF_BLAMER, word_display_mode.bit(DF_BLAMER));
return word_display(pr_it);
}
// page_res is non-const because the iterator doesn't know if you are going
// to change the items it points to! Really a const here though.
void Tesseract::blob_feature_display(PAGE_RES* page_res,
const TBOX& selection_box) {
PAGE_RES_IT* it = make_pseudo_word(page_res, selection_box);
if (it != NULL) {
WERD_RES* word_res = it->word();
word_res->x_height = it->row()->row->x_height();
word_res->SetupForRecognition(unicharset, this, BestPix(),
tessedit_ocr_engine_mode, NULL,
classify_bln_numeric_mode,
textord_use_cjk_fp_model,
poly_allow_detailed_fx,
it->row()->row, it->block()->block);
TWERD* bln_word = word_res->chopped_word;
TBLOB* bln_blob = bln_word->blobs[0];
INT_FX_RESULT_STRUCT fx_info;
GenericVector<INT_FEATURE_STRUCT> bl_features;
GenericVector<INT_FEATURE_STRUCT> cn_features;
Classify::ExtractFeatures(*bln_blob, classify_nonlinear_norm, &bl_features,
&cn_features, &fx_info, NULL);
// Display baseline features.
ScrollView* bl_win = CreateFeatureSpaceWindow("BL Features", 512, 0);
ClearFeatureSpaceWindow(baseline, bl_win);
for (int f = 0; f < bl_features.size(); ++f)
RenderIntFeature(bl_win, &bl_features[f], ScrollView::GREEN);
bl_win->Update();
// Display cn features.
ScrollView* cn_win = CreateFeatureSpaceWindow("CN Features", 512, 0);
ClearFeatureSpaceWindow(character, cn_win);
for (int f = 0; f < cn_features.size(); ++f)
RenderIntFeature(cn_win, &cn_features[f], ScrollView::GREEN);
cn_win->Update();
it->DeleteCurrentWord();
delete it;
}
}
#endif // GRAPHICS_DISABLED
} // namespace tesseract
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