move dilate_*_contours to .utils.contour, rename dilate_textregions_contours_textline_version → dilate_textline_contours

This commit is contained in:
Robert Sachunsky 2025-08-21 01:42:46 +02:00
parent 244772f086
commit 8b5f90e243
2 changed files with 22 additions and 242 deletions

View file

@ -69,12 +69,13 @@ from .utils.contour import (
get_text_region_boxes_by_given_contours,
get_textregion_contours_in_org_image,
get_textregion_contours_in_org_image_light,
make_valid,
return_contours_of_image,
return_contours_of_interested_region,
return_contours_of_interested_region_by_min_size,
return_contours_of_interested_textline,
return_parent_contours,
dilate_textregion_contours,
dilate_textline_contours,
)
from .utils.rotate import (
rotate_image,
@ -1919,7 +1920,7 @@ class Eynollah:
#sys.exit()
polygons_of_only_texts = return_contours_of_interested_region(mask_texts_only,1,0.00001)
##polygons_of_only_texts = self.dilate_textregions_contours(polygons_of_only_texts)
##polygons_of_only_texts = dilate_textregion_contours(polygons_of_only_texts)
polygons_of_only_lines = return_contours_of_interested_region(mask_lines_only,1,0.00001)
text_regions_p_true = np.zeros(prediction_regions_org.shape)
@ -3669,117 +3670,6 @@ class Eynollah:
return x_differential_new
def dilate_textregions_contours_textline_version(self, all_found_textline_polygons):
return [[np.array(make_valid(Polygon(poly[:, 0]).buffer(5)).exterior.coords[:-1],
dtype=np.uint)[:, np.newaxis]
for poly in region]
for region in all_found_textline_polygons]
def dilate_textregions_contours(self, all_found_textline_polygons):
return [np.array(make_valid(Polygon(poly[:, 0]).buffer(5)).exterior.coords[:-1],
dtype=np.uint)[:, np.newaxis]
for poly in all_found_textline_polygons]
def dilate_textline_contours(self, all_found_textline_polygons):
for j in range(len(all_found_textline_polygons)):
for ij in range(len(all_found_textline_polygons[j])):
con_ind = all_found_textline_polygons[j][ij]
area = cv2.contourArea(con_ind)
con_ind = con_ind.astype(float)
x_differential = np.diff( con_ind[:,0,0])
y_differential = np.diff( con_ind[:,0,1])
x_differential = gaussian_filter1d(x_differential, 3)
y_differential = gaussian_filter1d(y_differential, 3)
x_min = float(np.min( con_ind[:,0,0] ))
y_min = float(np.min( con_ind[:,0,1] ))
x_max = float(np.max( con_ind[:,0,0] ))
y_max = float(np.max( con_ind[:,0,1] ))
x_differential_mask_nonzeros = [ ind/abs(ind) if ind!=0 else ind for ind in x_differential]
y_differential_mask_nonzeros = [ ind/abs(ind) if ind!=0 else ind for ind in y_differential]
abs_diff=abs(abs(x_differential)- abs(y_differential) )
inc_x = np.zeros(len(x_differential)+1)
inc_y = np.zeros(len(x_differential)+1)
if (y_max-y_min) <= (x_max-x_min):
dilation_m1 = round(area / (x_max-x_min) * 0.35)
else:
dilation_m1 = round(area / (y_max-y_min) * 0.35)
if dilation_m1>12:
dilation_m1 = 12
if dilation_m1<4:
dilation_m1 = 4
#print(dilation_m1, 'dilation_m1')
dilation_m2 = int(dilation_m1/2.) +1
for i in range(len(x_differential)):
if abs_diff[i]==0:
inc_x[i+1] = dilation_m2*(-1*y_differential_mask_nonzeros[i])
inc_y[i+1] = dilation_m2*(x_differential_mask_nonzeros[i])
elif abs_diff[i]!=0 and x_differential_mask_nonzeros[i]==0 and y_differential_mask_nonzeros[i]!=0:
inc_x[i+1]= dilation_m1*(-1*y_differential_mask_nonzeros[i])
elif abs_diff[i]!=0 and x_differential_mask_nonzeros[i]!=0 and y_differential_mask_nonzeros[i]==0:
inc_y[i+1] = dilation_m1*(x_differential_mask_nonzeros[i])
elif abs_diff[i]!=0 and abs_diff[i]>=3:
if abs(x_differential[i])>abs(y_differential[i]):
inc_y[i+1] = dilation_m1*(x_differential_mask_nonzeros[i])
else:
inc_x[i+1]= dilation_m1*(-1*y_differential_mask_nonzeros[i])
else:
inc_x[i+1] = dilation_m2*(-1*y_differential_mask_nonzeros[i])
inc_y[i+1] = dilation_m2*(x_differential_mask_nonzeros[i])
inc_x[0] = inc_x[-1]
inc_y[0] = inc_y[-1]
con_scaled = con_ind*1
con_scaled[:,0, 0] = con_ind[:,0,0] + np.array(inc_x)[:]
con_scaled[:,0, 1] = con_ind[:,0,1] + np.array(inc_y)[:]
con_scaled[:,0, 1][con_scaled[:,0, 1]<0] = 0
con_scaled[:,0, 0][con_scaled[:,0, 0]<0] = 0
con_ind = con_ind.astype(np.int32)
results = [cv2.pointPolygonTest(con_ind, (con_scaled[ind,0, 0], con_scaled[ind,0, 1]), False)
for ind in range(len(con_scaled[:,0, 1])) ]
results = np.array(results)
results[results==0] = 1
diff_result = np.diff(results)
indices_2 = [ind for ind in range(len(diff_result)) if diff_result[ind]==2]
indices_m2 = [ind for ind in range(len(diff_result)) if diff_result[ind]==-2]
if results[0]==1:
con_scaled[:indices_m2[0]+1,0, 1] = con_ind[:indices_m2[0]+1,0,1]
con_scaled[:indices_m2[0]+1,0, 0] = con_ind[:indices_m2[0]+1,0,0]
indices_m2 = indices_m2[1:]
if len(indices_2)>len(indices_m2):
con_scaled[indices_2[-1]+1:,0, 1] = con_ind[indices_2[-1]+1:,0,1]
con_scaled[indices_2[-1]+1:,0, 0] = con_ind[indices_2[-1]+1:,0,0]
indices_2 = indices_2[:-1]
for ii in range(len(indices_2)):
con_scaled[indices_2[ii]+1:indices_m2[ii]+1,0, 1] = con_scaled[indices_2[ii],0, 1]
con_scaled[indices_2[ii]+1:indices_m2[ii]+1,0, 0] = con_scaled[indices_2[ii],0, 0]
all_found_textline_polygons[j][ij][:,0,1] = con_scaled[:,0, 1]
all_found_textline_polygons[j][ij][:,0,0] = con_scaled[:,0, 0]
return all_found_textline_polygons
def filter_contours_inside_a_bigger_one(self,contours, contours_d_ordered, image, marginal_cnts=None, type_contour="textregion"):
if type_contour=="textregion":
areas = [cv2.contourArea(contours[j]) for j in range(len(contours))]
@ -3917,121 +3807,6 @@ class Eynollah:
return contours, text_con_org, conf_contours_textregions, contours_textline, contours_only_text_parent_d_ordered, np.array(range(len(contours)))
def dilate_textlines(self, all_found_textline_polygons):
for j in range(len(all_found_textline_polygons)):
for i in range(len(all_found_textline_polygons[j])):
con_ind = all_found_textline_polygons[j][i]
con_ind = con_ind.astype(float)
x_differential = np.diff( con_ind[:,0,0])
y_differential = np.diff( con_ind[:,0,1])
x_min = float(np.min( con_ind[:,0,0] ))
y_min = float(np.min( con_ind[:,0,1] ))
x_max = float(np.max( con_ind[:,0,0] ))
y_max = float(np.max( con_ind[:,0,1] ))
if (y_max - y_min) > (x_max - x_min) and (x_max - x_min)<70:
x_biger_than_x = np.abs(x_differential) > np.abs(y_differential)
mult = x_biger_than_x*x_differential
arg_min_mult = np.argmin(mult)
arg_max_mult = np.argmax(mult)
if y_differential[0]==0:
y_differential[0] = 0.1
if y_differential[-1]==0:
y_differential[-1]= 0.1
y_differential = [y_differential[ind] if y_differential[ind] != 0
else 0.5 * (y_differential[ind-1] + y_differential[ind+1])
for ind in range(len(y_differential))]
if y_differential[0]==0.1:
y_differential[0] = y_differential[1]
if y_differential[-1]==0.1:
y_differential[-1] = y_differential[-2]
y_differential.append(y_differential[0])
y_differential = [-1 if y_differential[ind] < 0 else 1
for ind in range(len(y_differential))]
y_differential = self.return_it_in_two_groups(y_differential)
y_differential = np.array(y_differential)
con_scaled = con_ind*1
con_scaled[:,0, 0] = con_ind[:,0,0] - 8*y_differential
con_scaled[arg_min_mult,0, 1] = con_ind[arg_min_mult,0,1] + 8
con_scaled[arg_min_mult+1,0, 1] = con_ind[arg_min_mult+1,0,1] + 8
try:
con_scaled[arg_min_mult-1,0, 1] = con_ind[arg_min_mult-1,0,1] + 5
con_scaled[arg_min_mult+2,0, 1] = con_ind[arg_min_mult+2,0,1] + 5
except:
pass
con_scaled[arg_max_mult,0, 1] = con_ind[arg_max_mult,0,1] - 8
con_scaled[arg_max_mult+1,0, 1] = con_ind[arg_max_mult+1,0,1] - 8
try:
con_scaled[arg_max_mult-1,0, 1] = con_ind[arg_max_mult-1,0,1] - 5
con_scaled[arg_max_mult+2,0, 1] = con_ind[arg_max_mult+2,0,1] - 5
except:
pass
else:
y_biger_than_x = np.abs(y_differential) > np.abs(x_differential)
mult = y_biger_than_x*y_differential
arg_min_mult = np.argmin(mult)
arg_max_mult = np.argmax(mult)
if x_differential[0]==0:
x_differential[0] = 0.1
if x_differential[-1]==0:
x_differential[-1]= 0.1
x_differential = [x_differential[ind] if x_differential[ind] != 0
else 0.5 * (x_differential[ind-1] + x_differential[ind+1])
for ind in range(len(x_differential))]
if x_differential[0]==0.1:
x_differential[0] = x_differential[1]
if x_differential[-1]==0.1:
x_differential[-1] = x_differential[-2]
x_differential.append(x_differential[0])
x_differential = [-1 if x_differential[ind] < 0 else 1
for ind in range(len(x_differential))]
x_differential = self.return_it_in_two_groups(x_differential)
x_differential = np.array(x_differential)
con_scaled = con_ind*1
con_scaled[:,0, 1] = con_ind[:,0,1] + 8*x_differential
con_scaled[arg_min_mult,0, 0] = con_ind[arg_min_mult,0,0] + 8
con_scaled[arg_min_mult+1,0, 0] = con_ind[arg_min_mult+1,0,0] + 8
try:
con_scaled[arg_min_mult-1,0, 0] = con_ind[arg_min_mult-1,0,0] + 5
con_scaled[arg_min_mult+2,0, 0] = con_ind[arg_min_mult+2,0,0] + 5
except:
pass
con_scaled[arg_max_mult,0, 0] = con_ind[arg_max_mult,0,0] - 8
con_scaled[arg_max_mult+1,0, 0] = con_ind[arg_max_mult+1,0,0] - 8
try:
con_scaled[arg_max_mult-1,0, 0] = con_ind[arg_max_mult-1,0,0] - 5
con_scaled[arg_max_mult+2,0, 0] = con_ind[arg_max_mult+2,0,0] - 5
except:
pass
con_scaled[:,0, 1][con_scaled[:,0, 1]<0] = 0
con_scaled[:,0, 0][con_scaled[:,0, 0]<0] = 0
all_found_textline_polygons[j][i][:,0,1] = con_scaled[:,0, 1]
all_found_textline_polygons[j][i][:,0,0] = con_scaled[:,0, 0]
return all_found_textline_polygons
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):
@ -4130,8 +3905,7 @@ class Eynollah:
all_found_textline_polygons=[ all_found_textline_polygons ]
all_found_textline_polygons = self.dilate_textregions_contours_textline_version(
all_found_textline_polygons)
all_found_textline_polygons = dilate_textline_contours(all_found_textline_polygons)
all_found_textline_polygons = self.filter_contours_inside_a_bigger_one(
all_found_textline_polygons, None, textline_mask_tot_ea, type_contour="textline")
@ -4255,14 +4029,14 @@ class Eynollah:
boxes, boxes_d, polygons_of_marginals, contours_tables = \
self.run_boxes_no_full_layout(image_page, textline_mask_tot, text_regions_p, slope_deskew,
num_col_classifier, table_prediction, erosion_hurts)
###polygons_of_marginals = self.dilate_textregions_contours(polygons_of_marginals)
###polygons_of_marginals = dilate_textregion_contours(polygons_of_marginals)
else:
polygons_of_images, img_revised_tab, text_regions_p_1_n, textline_mask_tot_d, regions_without_separators_d, \
regions_fully, regions_without_separators, polygons_of_marginals, contours_tables = \
self.run_boxes_full_layout(image_page, textline_mask_tot, text_regions_p, slope_deskew,
num_col_classifier, img_only_regions, table_prediction, erosion_hurts,
img_bin_light if self.light_version else None)
###polygons_of_marginals = self.dilate_textregions_contours(polygons_of_marginals)
###polygons_of_marginals = dilate_textregion_contours(polygons_of_marginals)
if self.light_version:
drop_label_in_full_layout = 4
textline_mask_tot_ea_org[img_revised_tab==drop_label_in_full_layout] = 0
@ -4398,15 +4172,14 @@ class Eynollah:
#print("text region early 3 in %.1fs", time.time() - t0)
if self.light_version:
contours_only_text_parent = self.dilate_textregions_contours(
contours_only_text_parent)
contours_only_text_parent = dilate_textregion_contours(contours_only_text_parent)
contours_only_text_parent , contours_only_text_parent_d_ordered = self.filter_contours_inside_a_bigger_one(
contours_only_text_parent, contours_only_text_parent_d_ordered, text_only, marginal_cnts=polygons_of_marginals)
#print("text region early 3.5 in %.1fs", time.time() - t0)
txt_con_org , conf_contours_textregions = get_textregion_contours_in_org_image_light(
contours_only_text_parent, self.image, confidence_matrix, map=self.executor.map)
#txt_con_org = self.dilate_textregions_contours(txt_con_org)
#contours_only_text_parent = self.dilate_textregions_contours(contours_only_text_parent)
#txt_con_org = dilate_textregion_contours(txt_con_org)
#contours_only_text_parent = dilate_textregion_contours(contours_only_text_parent)
else:
txt_con_org , conf_contours_textregions = get_textregion_contours_in_org_image_light(
contours_only_text_parent, self.image, confidence_matrix, map=self.executor.map)
@ -4433,14 +4206,10 @@ class Eynollah:
#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 = self.dilate_textlines(all_found_textline_polygons)
#####all_found_textline_polygons = self.dilate_textline_contours(all_found_textline_polygons)
all_found_textline_polygons = self.dilate_textregions_contours_textline_version(
all_found_textline_polygons)
all_found_textline_polygons = dilate_textline_contours(all_found_textline_polygons)
all_found_textline_polygons = self.filter_contours_inside_a_bigger_one(
all_found_textline_polygons, None, textline_mask_tot_ea_org, type_contour="textline")
all_found_textline_polygons_marginals = self.dilate_textregions_contours_textline_version(
all_found_textline_polygons_marginals)
all_found_textline_polygons_marginals = dilate_textline_contours(all_found_textline_polygons_marginals)
contours_only_text_parent, txt_con_org, conf_contours_textregions, all_found_textline_polygons, contours_only_text_parent_d_ordered, \
index_by_text_par_con = self.filter_contours_without_textline_inside(
contours_only_text_parent, txt_con_org, all_found_textline_polygons, contours_only_text_parent_d_ordered, conf_contours_textregions)

View file

@ -325,6 +325,17 @@ def return_contours_of_interested_region_by_size(region_pre_p, pixel, min_area,
return img_ret[:, :, 0]
def dilate_textline_contours(self, all_found_textline_polygons):
return [[np.array(make_valid(Polygon(poly[:, 0]).buffer(5)).exterior.coords[:-1],
dtype=np.uint)[:, np.newaxis]
for poly in region]
for region in all_found_textline_polygons]
def dilate_textregion_contours(self, all_found_textline_polygons):
return [np.array(make_valid(Polygon(poly[:, 0]).buffer(5)).exterior.coords[:-1],
dtype=np.uint)[:, np.newaxis]
for poly in all_found_textline_polygons]
def make_valid(polygon: Polygon) -> Polygon:
"""Ensures shapely.geometry.Polygon object is valid by repeated rearrangement/simplification/enlargement."""
def isint(x):