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merge.py
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merge.py
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import json
import cv2
import numpy as np
from os.path import join as pjoin
import os
import time
from random import randint as rint
from utils.util_merge import *
from config.CONFIG import Config
from utils.Element import Element
C = Config()
def reclassify_text_by_ocr(org, compos, texts):
compos_new = []
for i, compo in enumerate(compos):
# broad = draw_bounding_box(org, [compo], show=True)
new_compo = None
text_area = 0
for j, text in enumerate(texts):
# get the intersected area
inter = compo.calc_intersection_area(text)
if inter == 0:
continue
# calculate IoU
ioa = inter / compo.area
iob = inter / text.area
iou = inter / (compo.area + text.area - inter)
# print('ioa:%.3f, iob:%.3f, iou:%.3f' %(ioa, iob, iou))
# draw_bounding_box(broad, [text], color=(255,0,0), line=2, show=True)
# text area
if ioa >= 0.68 or iou > 0.55:
new_compo = compo.element_merge(text, new_element=True, new_category='Text')
texts[j] = new_compo
break
text_area += inter
# print("Text area ratio:%.3f" % (text_area / compo.area))
if new_compo is not None:
compos_new.append(new_compo)
elif text_area / compo.area > 0.5:
compo.category = 'Text'
compos_new.append(compo)
else:
compos_new.append(compo)
return compos_new
def merge_intersected_compos(compos, max_gap=(0, 0)):
changed = False
new_compos = []
for i in range(len(compos)):
merged = False
cur_compo = compos[i]
for j in range(len(new_compos)):
relation = cur_compo.element_relation(new_compos[j], max_gap)
# draw.draw_bounding_box(org, [cur_compo, new_compos[j]], name='b-merge', show=True)
if relation != 0:
new_compos[j].element_merge(cur_compo)
cur_compo = new_compos[j]
# draw.draw_bounding_box(org, [new_compos[j]], name='a-merge', show=True)
merged = True
changed = True
# break
if not merged:
new_compos.append(compos[i])
if not changed:
return compos
else:
return merge_intersected_compos(new_compos)
# def merge_redundant_corner(org, compos):
# changed = False
# new_compos = []
# for i in range(len(compos)):
# # broad = draw_bounding_box(org, [compos[i]], show=True)
# merged = False
# for j in range(len(new_compos)):
# iou = compos[i].calc_iou(new_compos[j])
#
# # if iou > 0:
# # print('iou:%.3f' % iou)
# # draw_bounding_box(broad, [new_compos[j]], color=(255,0,0), line=2, show=True)
#
# if iou > 0.8:
# new_compos[j].element_merge(compos[i], new_element=False)
# merged = True
# changed = True
# break
# if not merged:
# new_compos.append(compos[i])
#
# if not changed:
# return compos
# else:
# return merge_redundant_corner(org, new_compos)
#
#
# def merge_text_line(compos, max_word_gap=10, max_word_height=30):
# changed = False
# new_compos = []
# for i in range(len(compos)):
# if compos[i].category != 'Text':
# new_compos.append(compos[i])
# continue
# merged = False
# height = compos[i].height
# if height > max_word_height:
# new_compos.append(compos[i])
# continue
# for j in range(len(new_compos)):
# # merge text line and paragraph
# if is_same_alignment(compos[i], new_compos[j], max_word_gap, flag='line'):
# new_compos[j].element_merge(compos[i])
# new_compos[j].category = 'Text'
# merged = True
# changed = True
# break
# if not merged:
# new_compos.append(compos[i])
#
# if not changed:
# return compos
# else:
# return merge_text_line(new_compos)
#
#
# def merge_paragraph(org, compos, max_para_gap=20, max_word_height=500):
# changed = False
# new_compos = []
# for i in range(len(compos)):
# if compos[i].category != 'Text':
# new_compos.append(compos[i])
# continue
# merged = False
# height = compos[i].height
# if height > max_word_height:
# new_compos.append(compos[i])
# continue
# for j in range(len(new_compos)):
# if is_same_alignment(compos[i], new_compos[j], max_para_gap, flag='paragraph'):
# if new_compos[j].category not in ['Text', 'Paragraph']:
# continue
# new_compos[j].element_merge(compos[i])
# new_compos[j].category = 'Text'
# merged = True
# changed = True
# break
# if not merged:
# new_compos.append(compos[i])
#
# if not changed:
# return compos
# else:
# return merge_paragraph(org, new_compos)
def incorporate(img_path, compo_path, text_path, output_root, resize_by_height=None, show=False):
org = cv2.imread(img_path)
compos = []
texts = []
background = None
for compo in json.load(open(compo_path, 'r'))['compos']:
if compo['class'] == 'Background':
background = compo
continue
element = Element((compo['column_min'], compo['row_min'], compo['column_max'], compo['row_max']), compo['class'])
compos.append(element)
for text in json.load(open(text_path, 'r'))['compos']:
element = Element((text['column_min'], text['row_min'], text['column_max'], text['row_max']), 'Text')
texts.append(element)
# bbox_text = refine_text(org, bbox_text, 20, 10)
# bbox_text = resize_label(bbox_text, resize_by_height, org.shape[0])
org_resize = resize_img_by_height(org, resize_by_height)
draw_bounding_box_class(org_resize, compos, show=show, name='ip')
draw_bounding_box(org_resize, texts, show=show, name='ocr')
compos_merged = reclassify_text_by_ocr(org_resize, compos, texts)
# compos_merged = merge_redundant_corner(org_resize, compos_merged)
draw_bounding_box_class(org_resize, compos_merged, name='text', show=show)
# compos_merged = merge_text_line(compos_merged)
compos_merged = merge_intersected_compos(compos_merged, max_gap=(4, 0))
draw_bounding_box_class(org_resize, compos_merged, name='merged line', show=show)
# compos_merged = merge_paragraph(org_resize, compos_merged)
compos_merged = merge_intersected_compos(compos_merged, max_gap=(0, 1))
board = draw_bounding_box_class(org_resize, compos_merged, name='merged paragraph', show=show)
draw_bounding_box_non_text(org_resize, compos_merged, org_shape=org.shape, show=show)
compos_json = save_corners_json(pjoin(output_root, 'compo.json'), background, compos_merged, org_resize.shape)
dissemble_clip_img_fill(pjoin(output_root, 'clips'), org_resize, compos_json)
cv2.imwrite(pjoin(output_root, 'result.jpg'), board)
print('Merge Complete and Save to', pjoin(output_root, 'result.jpg'))
print(time.ctime(), '\n')
if show:
cv2.destroyAllWindows()