move all XML handling to EynollahXmlWriter
Konstantin Baierer
4 years ago
parent
22184024fa
commit
c730e2eefd
@ -0,0 +1,261 @@
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# pylint: disable=too-many-locals,wrong-import-position,too-many-lines,too-many-statements,chained-comparison,fixme,broad-except,c-extension-no-member
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from pathlib import Path
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import os.path
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from .utils.xml import create_page_xml, add_textequiv, xml_reading_order
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from ocrd_utils import getLogger
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from lxml import etree as ET
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import numpy as np
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class EynollahXmlWriter():
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def __init__(self, *, dir_out, image_filename, curved_line):
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self.logger = getLogger('eynollah.writer')
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self.dir_out = dir_out
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self.image_filename = image_filename
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self.image_filename_stem = Path(Path(image_filename).name).stem
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self.curved_line = curved_line
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self.scale_x = None # XXX set outside __init__
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self.scale_y = None # XXX set outside __init__
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self.height_org = None # XXX set outside __init__
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self.width_org = None # XXX set outside __init__
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def calculate_page_coords(self, cont_page):
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self.logger.debug('enter calculate_page_coords')
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points_page_print = ""
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for _, contour in enumerate(cont_page[0]):
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if len(contour) == 2:
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points_page_print += str(int((contour[0]) / self.scale_x))
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points_page_print += ','
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points_page_print += str(int((contour[1]) / self.scale_y))
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else:
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points_page_print += str(int((contour[0][0]) / self.scale_x))
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points_page_print += ','
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points_page_print += str(int((contour[0][1] ) / self.scale_y))
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points_page_print = points_page_print + ' '
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return points_page_print[:-1]
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def serialize_lines_in_marginal(self, marginal, all_found_texline_polygons_marginals, marginal_idx, page_coord, all_box_coord_marginals, id_indexer_l):
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for j in range(len(all_found_texline_polygons_marginals[marginal_idx])):
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textline = ET.SubElement(marginal, 'TextLine')
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textline.set('id', 'l%s' % id_indexer_l)
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id_indexer_l += 1
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coord = ET.SubElement(textline, 'Coords')
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add_textequiv(textline)
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points_co = ''
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for l in range(len(all_found_texline_polygons_marginals[marginal_idx][j])):
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if not self.curved_line:
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if len(all_found_texline_polygons_marginals[marginal_idx][j][l]) == 2:
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points_co += str(int((all_found_texline_polygons_marginals[marginal_idx][j][l][0] + all_box_coord_marginals[marginal_idx][2] + page_coord[2]) / self.scale_x))
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points_co += ','
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points_co += str(int((all_found_texline_polygons_marginals[marginal_idx][j][l][1] + all_box_coord_marginals[marginal_idx][0] + page_coord[0]) / self.scale_y))
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else:
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points_co += str(int((all_found_texline_polygons_marginals[marginal_idx][j][l][0][0] + all_box_coord_marginals[marginal_idx][2] + page_coord[2]) / self.scale_x))
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points_co += ','
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points_co += str(int((all_found_texline_polygons_marginals[marginal_idx][j][l][0][1] + all_box_coord_marginals[marginal_idx][0] + page_coord[0])/self.scale_y))
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else:
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if len(all_found_texline_polygons_marginals[marginal_idx][j][l]) == 2:
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points_co += str(int((all_found_texline_polygons_marginals[marginal_idx][j][l][0] + page_coord[2]) / self.scale_x))
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points_co += ','
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points_co += str(int((all_found_texline_polygons_marginals[marginal_idx][j][l][1] + page_coord[0]) / self.scale_y))
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else:
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points_co += str(int((all_found_texline_polygons_marginals[marginal_idx][j][l][0][0] + page_coord[2]) / self.scale_x))
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points_co += ','
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points_co += str(int((all_found_texline_polygons_marginals[marginal_idx][j][l][0][1] + page_coord[0]) / self.scale_y))
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if l < len(all_found_texline_polygons_marginals[marginal_idx][j]) - 1:
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points_co += ' '
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coord.set('points',points_co)
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return id_indexer_l
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def serialize_lines_in_region(self, textregion, all_found_texline_polygons, region_idx, page_coord, all_box_coord, slopes, id_indexer_l):
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self.logger.debug('enter serialize_lines_in_region')
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for j in range(len(all_found_texline_polygons[region_idx])):
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textline = ET.SubElement(textregion, 'TextLine')
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textline.set('id', 'l%s' % id_indexer_l)
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id_indexer_l += 1
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coord = ET.SubElement(textline, 'Coords')
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add_textequiv(textline)
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points_co = ''
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for l in range(len(all_found_texline_polygons[region_idx][j])):
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if not self.curved_line:
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if len(all_found_texline_polygons[region_idx][j][l])==2:
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textline_x_coord = max(0, int((all_found_texline_polygons[region_idx][j][l][0] + all_box_coord[region_idx][2] + page_coord[2]) / self.scale_x))
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textline_y_coord = max(0, int((all_found_texline_polygons[region_idx][j][l][1] + all_box_coord[region_idx][0] + page_coord[0]) / self.scale_y))
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else:
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textline_x_coord = max(0, int((all_found_texline_polygons[region_idx][j][l][0][0] + all_box_coord[region_idx][2] + page_coord[2]) / self.scale_x))
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textline_y_coord = max(0, int((all_found_texline_polygons[region_idx][j][l][0][1] + all_box_coord[region_idx][0] + page_coord[0]) / self.scale_y))
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points_co += str(textline_x_coord)
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points_co += ','
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points_co += str(textline_y_coord)
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if self.curved_line and np.abs(slopes[region_idx]) <= 45:
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if len(all_found_texline_polygons[region_idx][j][l]) == 2:
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points_co += str(int((all_found_texline_polygons[region_idx][j][l][0] + page_coord[2]) / self.scale_x))
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points_co += ','
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points_co += str(int((all_found_texline_polygons[region_idx][j][l][1] + page_coord[0]) / self.scale_y))
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else:
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points_co += str(int((all_found_texline_polygons[region_idx][j][l][0][0] + page_coord[2]) / self.scale_x))
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points_co += ','
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points_co += str(int((all_found_texline_polygons[region_idx][j][l][0][1] + page_coord[0])/self.scale_y))
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elif self.curved_line and np.abs(slopes[region_idx]) > 45:
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if len(all_found_texline_polygons[region_idx][j][l])==2:
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points_co += str(int((all_found_texline_polygons[region_idx][j][l][0] + all_box_coord[region_idx][2]+page_coord[2])/self.scale_x))
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points_co += ','
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points_co += str(int((all_found_texline_polygons[region_idx][j][l][1] + all_box_coord[region_idx][0]+page_coord[0])/self.scale_y))
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else:
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points_co += str(int((all_found_texline_polygons[region_idx][j][l][0][0] + all_box_coord[region_idx][2]+page_coord[2])/self.scale_x))
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points_co += ','
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points_co += str(int((all_found_texline_polygons[region_idx][j][l][0][1] + all_box_coord[region_idx][0]+page_coord[0])/self.scale_y))
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if l < len(all_found_texline_polygons[region_idx][j]) - 1:
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points_co += ' '
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coord.set('points',points_co)
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return id_indexer_l
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def write_pagexml(self, pcgts):
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self.logger.info("filename stem: '%s'", self.image_filename_stem)
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tree = ET.ElementTree(pcgts)
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tree.write(os.path.join(self.dir_out, self.image_filename_stem) + ".xml")
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def build_pagexml_no_full_layout(self, found_polygons_text_region, page_coord, order_of_texts, id_of_texts, all_found_texline_polygons, all_box_coord, found_polygons_text_region_img, found_polygons_marginals, all_found_texline_polygons_marginals, all_box_coord_marginals, slopes, cont_page):
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self.logger.debug('enter build_pagexml_no_full_layout')
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# create the file structure
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pcgts, page = create_page_xml(self.image_filename, self.height_org, self.width_org)
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page_print_sub = ET.SubElement(page, "Border")
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coord_page = ET.SubElement(page_print_sub, "Coords")
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coord_page.set('points', self.calculate_page_coords(cont_page))
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id_of_marginalia = []
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id_indexer = 0
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id_indexer_l = 0
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if len(found_polygons_text_region) > 0:
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xml_reading_order(page, order_of_texts, id_of_texts, id_of_marginalia, found_polygons_marginals)
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for mm in range(len(found_polygons_text_region)):
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textregion = ET.SubElement(page, 'TextRegion')
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textregion.set('id', 'r%s' % id_indexer)
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id_indexer += 1
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textregion.set('type', 'paragraph')
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coord_text = ET.SubElement(textregion, 'Coords')
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coord_text.set('points', self.calculate_polygon_coords(found_polygons_text_region, mm, page_coord))
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id_indexer_l = self.serialize_lines_in_region(textregion, all_found_texline_polygons, mm, page_coord, all_box_coord, slopes, id_indexer_l)
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add_textequiv(textregion)
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for marginal_idx in range(len(found_polygons_marginals)):
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marginal = ET.SubElement(page, 'TextRegion')
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marginal.set('id', id_of_marginalia[mm])
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marginal.set('type', 'marginalia')
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coord_text = ET.SubElement(marginal, 'Coords')
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coord_text.set('points', self.calculate_polygon_coords(found_polygons_marginals, mm, page_coord))
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self.serialize_lines_in_marginal(marginal, all_found_texline_polygons_marginals, marginal_idx, page_coord, all_box_coord_marginals, id_indexer_l)
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id_indexer = len(found_polygons_text_region) + len(found_polygons_marginals)
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for mm in range(len(found_polygons_text_region_img)):
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textregion = ET.SubElement(page, 'ImageRegion')
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textregion.set('id', 'r%s' % id_indexer)
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id_indexer += 1
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coord_text = ET.SubElement(textregion, 'Coords')
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points_co = ''
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for lmm in range(len(found_polygons_text_region_img[mm])):
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points_co += str(int((found_polygons_text_region_img[mm][lmm,0,0] + page_coord[2]) / self.scale_x))
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points_co += ','
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points_co += str(int((found_polygons_text_region_img[mm][lmm,0,1] + page_coord[0]) / self.scale_y))
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if lmm < len(found_polygons_text_region_img[mm]) - 1:
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points_co += ' '
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coord_text.set('points', points_co)
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return pcgts
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def build_pagexml_full_layout(self, found_polygons_text_region, found_polygons_text_region_h, page_coord, order_of_texts, id_of_texts, all_found_texline_polygons, all_found_texline_polygons_h, all_box_coord, all_box_coord_h, found_polygons_text_region_img, found_polygons_tables, found_polygons_drop_capitals, found_polygons_marginals, all_found_texline_polygons_marginals, all_box_coord_marginals, slopes, cont_page):
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self.logger.debug('enter build_pagexml_full_layout')
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# create the file structure
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pcgts, page = create_page_xml(self.image_filename, self.height_org, self.width_org)
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page_print_sub = ET.SubElement(page, "Border")
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coord_page = ET.SubElement(page_print_sub, "Coords")
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coord_page.set('points', self.calculate_page_coords(cont_page))
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id_indexer = 0
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id_indexer_l = 0
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id_of_marginalia = []
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if len(found_polygons_text_region) > 0:
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xml_reading_order(page, order_of_texts, id_of_texts, id_of_marginalia, found_polygons_marginals)
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for mm in range(len(found_polygons_text_region)):
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textregion=ET.SubElement(page, 'TextRegion')
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textregion.set('id', 'r%s' % id_indexer)
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id_indexer += 1
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textregion.set('type', 'paragraph')
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coord_text = ET.SubElement(textregion, 'Coords')
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coord_text.set('points', self.calculate_polygon_coords(found_polygons_text_region, mm, page_coord))
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id_indexer_l = self.serialize_lines_in_region(textregion, all_found_texline_polygons, mm, page_coord, all_box_coord, slopes, id_indexer_l)
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add_textequiv(textregion)
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self.logger.debug('len(found_polygons_text_region_h) %s', len(found_polygons_text_region_h))
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if len(found_polygons_text_region_h) > 0:
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for mm in range(len(found_polygons_text_region_h)):
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textregion=ET.SubElement(page, 'TextRegion')
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textregion.set('id', 'r%s' % id_indexer)
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id_indexer += 1
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textregion.set('type','header')
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coord_text = ET.SubElement(textregion, 'Coords')
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coord_text.set('points', self.calculate_polygon_coords(found_polygons_text_region_h, mm, page_coord))
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id_indexer_l = self.serialize_lines_in_region(textregion, all_found_texline_polygons_h, mm, page_coord, all_box_coord_h, slopes, id_indexer_l)
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add_textequiv(textregion)
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if len(found_polygons_drop_capitals) > 0:
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id_indexer = len(found_polygons_text_region) + len(found_polygons_text_region_h) + len(found_polygons_marginals)
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for mm in range(len(found_polygons_drop_capitals)):
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textregion=ET.SubElement(page, 'TextRegion')
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textregion.set('id',' r%s' % id_indexer)
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id_indexer += 1
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textregion.set('type', 'drop-capital')
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coord_text = ET.SubElement(textregion, 'Coords')
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coord_text.set('points', self.calculate_polygon_coords(found_polygons_drop_capitals, mm, page_coord))
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add_textequiv(textregion)
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for marginal_idx in range(len(found_polygons_marginals)):
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marginal = ET.SubElement(page, 'TextRegion')
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add_textequiv(textregion)
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marginal.set('id', id_of_marginalia[mm])
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marginal.set('type', 'marginalia')
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coord_text = ET.SubElement(marginal, 'Coords')
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coord_text.set('points', self.calculate_polygon_coords(found_polygons_marginals, mm, page_coord))
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self.serialize_lines_in_marginal(marginal, all_found_texline_polygons_marginals, marginal_idx, page_coord, all_box_coord_marginals, id_indexer_l)
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id_indexer = len(found_polygons_text_region) + len(found_polygons_text_region_h) + len(found_polygons_marginals) + len(found_polygons_drop_capitals)
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for mm in range(len(found_polygons_text_region_img)):
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textregion=ET.SubElement(page, 'ImageRegion')
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textregion.set('id', 'r%s' % id_indexer)
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id_indexer += 1
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coord_text = ET.SubElement(textregion, 'Coords')
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coord_text.set('points', self.calculate_polygon_coords(found_polygons_text_region_img, mm, page_coord))
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for mm in range(len(found_polygons_tables)):
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textregion = ET.SubElement(page, 'TableRegion')
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textregion.set('id', 'r%s' %id_indexer)
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id_indexer += 1
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coord_text = ET.SubElement(textregion, 'Coords')
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coord_text.set('points', self.calculate_polygon_coords(found_polygons_tables, mm, page_coord))
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return pcgts
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def calculate_polygon_coords(self, contour_list, i, page_coord):
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self.logger.debug('enter calculate_polygon_coords')
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coords = ''
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for j in range(len(contour_list[i])):
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if len(contour_list[i][j]) == 2:
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coords += str(int((contour_list[i][j][0] + page_coord[2]) / self.scale_x))
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coords += ','
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coords += str(int((contour_list[i][j][1] + page_coord[0]) / self.scale_y))
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else:
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coords += str(int((contour_list[i][j][0][0] + page_coord[2]) / self.scale_x))
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coords += ','
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coords += str(int((contour_list[i][j][0][1] + page_coord[0]) / self.scale_y))
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if j < len(contour_list[i]) - 1:
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coords=coords + ' '
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return coords
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