File size: 2,512 Bytes
1dd4f80 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 |
import cv2
import numpy as np
import matplotlib.pyplot as plt
class CharExtractor:
def __init__(self):
self.classes = None
self.class_char = []
self.y_class = None
self.x_class = None
self.bbox = None
self.x_bbox = None
self.y_bbox = None
def _extract_bbox(self, bboxes, classes):
plate_number = []
self.bbox = bboxes
self.classes = classes
for ix,bbox in enumerate(bboxes):
if len(bbox) != 0:
lowest_x, highest_y = self._get_xy(bbox, ix)
print('x_class : ', self.x_class)
# print('y_bbox : ', self.y_bbox)
for idx, point in enumerate(self.y_bbox):
x, y = point[0], point[1]
if y <= highest_y and x >= lowest_x and self.x_class.size > 1:
self.class_char.append(self.x_class[idx])
plate_num = ''.join(str(v) for v in self.class_char)
self.class_char.clear()
else:
plate_num = ''
plate_number.append(plate_num)
return plate_number
def _get_xy(self, bbox, ix):
y_id = bbox[:, 1].argsort()
# print('y_id : ', y_)
if len(bbox[y_id]) >= 4:
sorted_y = bbox[y_id][:-4]
self.y_bbox = sorted_y
# print('y_class : ', self.classes[ix])
# print('yid : ', y_id)
self.y_class = np.array(self.classes[ix][y_id])[:-4]
highest_y = max([x[1] for x in sorted_y])
x_id = sorted_y[:,0].argsort()
sorted_x = sorted_y[x_id]
self.x_bbox = sorted_x
# print('char : ', self.y_class)
self.x_class = self.y_class[x_id]
lowest_x = min([x[0] for x in sorted_x])
else:
sorted_y = bbox[y_id]
self.y_bbox = sorted_y
# print('y_class : ', self.classes)
# print('yid : ', y_id)
self.y_class = np.array(self.classes[ix][y_id])
highest_y = max([x[1] for x in sorted_y])
x_id = sorted_y[:,0].argsort()
sorted_x = sorted_y[x_id]
self.x_bbox = sorted_x
# print('char : ', self.y_class)
self.x_class = self.y_class
lowest_x = min([x[0] for x in sorted_x])
return lowest_x, highest_y
|