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filter_contours_without_textline_inside: simplify

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- np.delete in index array instead of contour lists
- yield actual resulting indices
This commit is contained in:
Robert Sachunsky 2025-10-07 22:42:36 +02:00
parent 0a80cd5dff
commit fd43e78442
1 changed files with 6 additions and 71 deletions
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77
src/eynollah/eynollah.py
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@ -4040,79 +4040,23 @@ class Eynollah:
self, contours, text_con_org, contours_textline, self, contours, text_con_org, contours_textline,
contours_only_text_parent_d_ordered, contours_only_text_parent_d_ordered,
conf_contours_textregions): conf_contours_textregions):
###contours_txtline_of_all_textregions = []
###for jj in range(len(contours_textline)):
###contours_txtline_of_all_textregions = contours_txtline_of_all_textregions + contours_textline[jj]
###M_main_textline = [cv2.moments(contours_txtline_of_all_textregions[j]) assert len(contours_par) == len(contours_textline)
### for j in range(len(contours_txtline_of_all_textregions))] indices = np.arange(len(contours_textline))
###cx_main_textline = [(M_main_textline[j]["m10"] / (M_main_textline[j]["m00"] + 1e-32)) indices = np.delete(indices, np.flatnonzero([len(lines) == 0 for lines in contours_textline]))
### for j in range(len(M_main_textline))]
###cy_main_textline = [(M_main_textline[j]["m01"] / (M_main_textline[j]["m00"] + 1e-32))
### for j in range(len(M_main_textline))]
###M_main = [cv2.moments(contours[j]) for j in range(len(contours))]
###cx_main = [(M_main[j]["m10"] / (M_main[j]["m00"] + 1e-32)) for j in range(len(M_main))]
###cy_main = [(M_main[j]["m01"] / (M_main[j]["m00"] + 1e-32)) for j in range(len(M_main))]
###contours_with_textline = []
###for ind_tr, con_tr in enumerate(contours):
###results = [cv2.pointPolygonTest(con_tr,
### (cx_main_textline[index_textline_con],
### cy_main_textline[index_textline_con]),
### False)
### for index_textline_con in range(len(contours_txtline_of_all_textregions)) ]
###results = np.array(results)
###if np.any(results==1):
###contours_with_textline.append(con_tr)
textregion_index_to_del = set()
for index_textregion, textlines_textregion in enumerate(contours_textline):
if len(textlines_textregion) == 0:
textregion_index_to_del.add(index_textregion)
def filterfun(lis): def filterfun(lis):
if len(lis) == 0: if len(lis) == 0:
return [] return []
if len(textregion_index_to_del) == 0: return list(np.array(lis)[indices])
return lis
return list(np.delete(lis, list(textregion_index_to_del)))
return (filterfun(contours), return (filterfun(contours),
filterfun(text_con_org), filterfun(text_con_org),
filterfun(conf_contours_textregions), filterfun(conf_contours_textregions),
filterfun(contours_textline), filterfun(contours_textline),
filterfun(contours_only_text_parent_d_ordered), filterfun(contours_only_text_parent_d_ordered),
np.arange(len(contours) - len(textregion_index_to_del))) indices
)
def delete_regions_without_textlines(
self, slopes, all_found_textline_polygons, boxes_text, txt_con_org,
contours_only_text_parent, index_by_text_par_con):
slopes_rem = []
all_found_textline_polygons_rem = []
boxes_text_rem = []
txt_con_org_rem = []
contours_only_text_parent_rem = []
index_by_text_par_con_rem = []
for i, ind_con in enumerate(all_found_textline_polygons):
if len(ind_con):
all_found_textline_polygons_rem.append(ind_con)
slopes_rem.append(slopes[i])
boxes_text_rem.append(boxes_text[i])
txt_con_org_rem.append(txt_con_org[i])
contours_only_text_parent_rem.append(contours_only_text_parent[i])
index_by_text_par_con_rem.append(index_by_text_par_con[i])
index_sort = np.argsort(index_by_text_par_con_rem)
indexes_new = np.array(range(len(index_by_text_par_con_rem)))
index_by_text_par_con_rem_sort = [indexes_new[index_sort==j][0]
for j in range(len(index_by_text_par_con_rem))]
return (slopes_rem, all_found_textline_polygons_rem, boxes_text_rem, txt_con_org_rem,
contours_only_text_parent_rem, index_by_text_par_con_rem_sort)
def separate_marginals_to_left_and_right_and_order_from_top_to_down( def separate_marginals_to_left_and_right_and_order_from_top_to_down(
self, polygons_of_marginals, all_found_textline_polygons_marginals, all_box_coord_marginals, self, polygons_of_marginals, all_found_textline_polygons_marginals, all_box_coord_marginals,
slopes_marginals, mid_point_of_page_width): slopes_marginals, mid_point_of_page_width):
@ -4679,15 +4623,6 @@ class Eynollah:
polygons_of_marginals, polygons_of_marginals, textline_mask_tot_ea_org, polygons_of_marginals, polygons_of_marginals, textline_mask_tot_ea_org,
boxes_marginals, slope_deskew) boxes_marginals, slope_deskew)
#slopes, all_found_textline_polygons, boxes_text, txt_con_org, \
# contours_only_text_parent, index_by_text_par_con = \
# self.delete_regions_without_textlines(slopes, all_found_textline_polygons,
# boxes_text, txt_con_org, contours_only_text_parent, index_by_text_par_con)
#slopes_marginals, all_found_textline_polygons_marginals, boxes_marginals, \
# polygons_of_marginals, polygons_of_marginals, _ = \
# self.delete_regions_without_textlines(slopes_marginals, all_found_textline_polygons_marginals,
# boxes_marginals, polygons_of_marginals, polygons_of_marginals,
# np.array(range(len(polygons_of_marginals))))
all_found_textline_polygons = dilate_textline_contours( all_found_textline_polygons = dilate_textline_contours(
all_found_textline_polygons) all_found_textline_polygons)
all_found_textline_polygons = self.filter_contours_inside_a_bigger_one( all_found_textline_polygons = self.filter_contours_inside_a_bigger_one(