void textord_page( //make rows & words ICOORD page_tr, //top right BLOCK_LIST *blocks, //block list TO_BLOCK_LIST *land_blocks, //rotated for landscape TO_BLOCK_LIST *port_blocks //output list ) { float gradient; //global skew set_global_loc_code(LOC_TEXT_ORD_ROWS); gradient = make_rows (page_tr, blocks, land_blocks, port_blocks); if (global_monitor != NULL) { global_monitor->ocr_alive = TRUE; global_monitor->progress = 20; } set_global_loc_code(LOC_TEXT_ORD_WORDS); make_words(page_tr, gradient, blocks, land_blocks, port_blocks); if (global_monitor != NULL) { global_monitor->ocr_alive = TRUE; global_monitor->progress = 30; } cleanup_blocks(blocks); //remove empties #ifndef GRAPHICS_DISABLED close_to_win(); #endif if (textord_exit_after && !interactive_mode) exit (0); }
// Make the textlines and words inside each block. void Textord::TextordPage(PageSegMode pageseg_mode, const FCOORD &reskew, int width, int height, Pix *binary_pix, Pix *thresholds_pix, Pix *grey_pix, bool use_box_bottoms, BLOCK_LIST *blocks, TO_BLOCK_LIST *to_blocks) { page_tr_.set_x(width); page_tr_.set_y(height); if (to_blocks->empty()) { // AutoPageSeg was not used, so we need to find_components first. find_components(binary_pix, blocks, to_blocks); TO_BLOCK_IT it(to_blocks); for (it.mark_cycle_pt(); !it.cycled_list(); it.forward()) { TO_BLOCK *to_block = it.data(); // Compute the edge offsets whether or not there is a grey_pix. // We have by-passed auto page seg, so we have to run it here. // By page segmentation mode there is no non-text to avoid running on. to_block->ComputeEdgeOffsets(thresholds_pix, grey_pix); } } else if (!PSM_SPARSE(pageseg_mode)) { // AutoPageSeg does not need to find_components as it did that already. // Filter_blobs sets up the TO_BLOCKs the same as find_components does. filter_blobs(page_tr_, to_blocks, true); } ASSERT_HOST(!to_blocks->empty()); if (pageseg_mode == PSM_SINGLE_BLOCK_VERT_TEXT) { const FCOORD anticlockwise90(0.0f, 1.0f); const FCOORD clockwise90(0.0f, -1.0f); TO_BLOCK_IT it(to_blocks); for (it.mark_cycle_pt(); !it.cycled_list(); it.forward()) { TO_BLOCK *to_block = it.data(); BLOCK *block = to_block->block; // Create a fake poly_block in block from its bounding box. block->set_poly_block(new POLY_BLOCK(block->bounding_box(), PT_VERTICAL_TEXT)); // Rotate the to_block along with its contained block and blobnbox lists. to_block->rotate(anticlockwise90); // Set the block's rotation values to obey the convention followed in // layout analysis for vertical text. block->set_re_rotation(clockwise90); block->set_classify_rotation(clockwise90); } } TO_BLOCK_IT to_block_it(to_blocks); TO_BLOCK *to_block = to_block_it.data(); // Make the rows in the block. float gradient = 0; // Do it the old fashioned way. if (PSM_LINE_FIND_ENABLED(pageseg_mode)) { gradient = make_rows(page_tr_, to_blocks); } else if (!PSM_SPARSE(pageseg_mode)) { // RAW_LINE, SINGLE_LINE, SINGLE_WORD and SINGLE_CHAR all need a single row. gradient = make_single_row(page_tr_, pageseg_mode != PSM_RAW_LINE, to_block, to_blocks); } BaselineDetect baseline_detector(textord_baseline_debug, reskew, to_blocks); baseline_detector.ComputeStraightBaselines(use_box_bottoms); baseline_detector.ComputeBaselineSplinesAndXheights(page_tr_, true, textord_heavy_nr, textord_show_final_rows, this); // Now make the words in the lines. if (PSM_WORD_FIND_ENABLED(pageseg_mode)) { // SINGLE_LINE uses the old word maker on the single line. make_words(this, page_tr_, gradient, blocks, to_blocks); } else { // SINGLE_WORD and SINGLE_CHAR cram all the blobs into a // single word, and in SINGLE_CHAR mode, all the outlines // go in a single blob. TO_BLOCK *to_block = to_block_it.data(); make_single_word(pageseg_mode == PSM_SINGLE_CHAR, to_block->get_rows(), to_block->block->row_list()); } cleanup_blocks(PSM_WORD_FIND_ENABLED(pageseg_mode), blocks); // Remove empties. // Compute the margins for each row in the block, to be used later for // paragraph detection. BLOCK_IT b_it(blocks); for (b_it.mark_cycle_pt(); !b_it.cycled_list(); b_it.forward()) { b_it.data()->compute_row_margins(); } #ifndef GRAPHICS_DISABLED close_to_win(); #endif }