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pdf_localizer3.py
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import numpy as np
import os
import xml.dom.minidom as minidom
from PIL import Image
import fitz
import matplotlib
matplotlib.use('TkAgg')
import matplotlib.pyplot as plt
import matplotlib.patches as patches
pageid = -1
xml_path = '/Users/ashisharora/text2.xml'
doc = minidom.parse(xml_path)
page1 = doc.getElementsByTagName('page')
count = 0
xMin_dict = dict()
xMax_dict = dict()
yMin_dict = dict()
yMax_dict = dict()
width_list = list()
height_list = list()
fig = plt.figure()
ax = fig.add_subplot(111, aspect='equal')
for page in page1:
pageid += 1
print("pageID is as follows:")
print(pageid)
width = float(page.getAttribute('width'))
height = float(page.getAttribute('height'))
width_list.append(width)
height_list.append(height)
word1 = page.getElementsByTagName('word')
wordid = 0
xMin_dict[pageid] = list()
yMin_dict[pageid] = list()
xMax_dict[pageid] = list()
yMax_dict[pageid] = list()
for word in word1:
wordid += 1
xMin = float(word.getAttribute('xMin'))
yMin = float(word.getAttribute('yMin'))
xMax = float(word.getAttribute('xMax'))
yMax = float(word.getAttribute('yMax'))
xMin_dict[pageid].append(xMin)
yMin_dict[pageid].append(yMin)
xMax_dict[pageid].append(xMax)
yMax_dict[pageid].append(yMax)
def get_linedict_from_pagelist(xMin_page_list, yMin_page_list, xMax_page_list, yMax_page_list):
xMin_line_dict = dict()
xMax_line_dict = dict()
yMin_line_dict = dict()
yMax_line_dict = dict()
xMin_line_dict[0] = list()
xMax_line_dict[0] = list()
yMin_line_dict[0] = list()
yMax_line_dict[0] = list()
prev_yMin = yMin_page_list[0]
line_id = 0
for i in range(len(yMin_page_list)):
curr_yMin = yMin_page_list[i]
if prev_yMin != curr_yMin:
prev_yMin = curr_yMin
line_id += 1
xMin_line_dict[line_id] = list()
xMax_line_dict[line_id] = list()
yMin_line_dict[line_id] = list()
yMax_line_dict[line_id] = list()
xMin_line_dict[line_id].append(xMin_page_list[i])
yMin_line_dict[line_id].append(yMin_page_list[i])
xMax_line_dict[line_id].append(xMax_page_list[i])
yMax_line_dict[line_id].append(yMax_page_list[i])
return xMin_line_dict, yMin_line_dict, xMax_line_dict, yMax_line_dict
def get_linelist_from_linedict(xMin_line_dict, yMin_line_dict, xMax_line_dict, yMax_line_dict):
xMin_line_list = list()
xMax_line_list = list()
yMin_line_list = list()
yMax_line_list = list()
for lineid in sorted(xMin_line_dict.keys()):
xMin_list = xMin_line_dict[lineid]
xMax_list = xMax_line_dict[lineid]
yMin_list = yMin_line_dict[lineid]
yMax_list = yMax_line_dict[lineid]
xMin = xMin_list[0]
xMax = xMax_list[-1]
yMin = yMin_list[0]
yMax = yMax_list[0]
xMin_line_list.append(xMin)
xMax_line_list.append(xMax)
yMin_line_list.append(yMin)
yMax_line_list.append(yMax)
return xMin_line_list, yMin_line_list, xMax_line_list, yMax_line_list
filtered_count = 0
filtered_count1 = 0
doc = fitz.Document('/Users/ashisharora/Desktop/A11_MissionReport.pdf')
img_path = '/Users/ashisharora/Desktop/dct/pdf_imgs2/'
for pageid in range(len(doc)):
full_dir_path = img_path + str(pageid)
# os.mkdir(full_dir_path)
page = doc.loadPage(pageid)
pix = page.getPixmap()
mode = "RGBA" if pix.alpha else "RGB"
img = Image.frombytes(mode, [pix.width, pix.height], pix.samples)
xMin_page_list = xMin_dict[pageid]
yMin_page_list = yMin_dict[pageid]
xMax_page_list = xMax_dict[pageid]
yMax_page_list = yMax_dict[pageid]
if len(yMax_page_list) == 0:
print(pageid)
continue
print(pageid)
xMin_line_dict, yMin_line_dict, xMax_line_dict, yMax_line_dict = get_linedict_from_pagelist(xMin_page_list, yMin_page_list, xMax_page_list, yMax_page_list)
xMin_line_list, yMin_line_list, xMax_line_list, yMax_line_list = get_linelist_from_linedict(xMin_line_dict, yMin_line_dict, xMax_line_dict, yMax_line_dict)
rect_list = list()
for lineid in range(len(xMin_line_list)):
xMin = xMin_line_list[lineid]
xMax = xMax_line_list[lineid]
yMin = yMin_line_list[lineid]
yMax = yMax_line_list[lineid]
rect1 = patches.Rectangle((xMin, yMin), xMax - xMin, yMax - yMin, linewidth=1, edgecolor='r',
facecolor='none')
box = (xMin, yMin, xMax, yMax)
if (xMax <= xMin) or (yMax <= yMin):
print(lineid)
filtered_count += 1
continue
if (xMax - xMin) <=30 or (yMax - yMin) <= 2:
print(lineid)
filtered_count1 += 1
continue
ax.add_patch(rect1)
region_initial = img.crop(box)
img_name = str(pageid) + '_' + str(lineid) +'.png'
full_img_path = full_dir_path + '/' + img_name
# region_initial.save(full_img_path, quality=100)
ax.imshow(img)
img_name = str(pageid) + '.png'
full_img_path = img_path + img_name
fig.savefig(full_img_path, dpi=600)
ax.clear()
print(filtered_count)
print(filtered_count1)