298 lines
11 KiB
Python
298 lines
11 KiB
Python
import logging.config
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import math
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import os
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import tempfile
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import traceback
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import urllib.request
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from time import sleep
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import cv2
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import numpy as np
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import paddleclas
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from paddleocr import PaddleOCR
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from sqlalchemy import update
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from auto_email.error_email import send_an_error_email
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from config.log import LOGGING_CONFIG
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from config.mysql import MysqlSession
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from config.photo_review import PHHD_BATCH_SIZE, SLEEP_MINUTES
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from config.ucloud import BUCKET
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from models import ZxPhrec, ZxPhhd
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from ucloud import ucloud
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OCR = PaddleOCR(use_angle_cls=False, lang="ch", show_log=False)
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def open_image(img_path):
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if img_path.startswith("http"):
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# 发送HTTP请求并获取图像数据
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resp = urllib.request.urlopen(img_path)
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# 将数据读取为字节流
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image_data = resp.read()
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# 将字节流转换为NumPy数组
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image_np = np.frombuffer(image_data, np.uint8)
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# 解码NumPy数组为OpenCV图像格式
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image = cv2.imdecode(image_np, cv2.IMREAD_COLOR)
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else:
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image = cv2.imread(img_path)
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return image
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def split_image(img, max_ratio=2.82, best_ration=1.41, overlap=0.05):
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split_result = []
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# 获取图片的宽度和高度
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height, width = img.shape[:2]
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# 计算宽高比
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ratio = max(width, height) / min(width, height)
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# 检查是否需要裁剪
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if ratio > max_ratio:
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# 确定裁剪的尺寸，保持长宽比，以较短边为基准
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new_ratio = best_ration - overlap
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if width < height:
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# 高度是较长边
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cropped_width = width * best_ration
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for i in range(math.ceil(height / (width * new_ratio))):
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offset = round(width * new_ratio * i)
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# 参数形式为[y1:y2, x1:x2]
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cropped_img = img[offset:round(offset + cropped_width), 0:width]
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split_result.append({"img": cropped_img, "x_offset": 0, "y_offset": offset})
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# 最后一次裁剪时不足的部分填充黑色
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last_img = split_result[-1]["img"]
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split_result[-1]["img"] = cv2.copyMakeBorder(last_img, 0, round(cropped_width - last_img.shape[0]), 0, 0,
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cv2.BORDER_CONSTANT, value=(0, 0, 0))
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else:
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# 宽度是较长边
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cropped_height = height * best_ration
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for i in range(math.ceil(width / (height * new_ratio))):
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offset = round(height * new_ratio * i)
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cropped_img = img[0:height, offset:round(offset + cropped_height)]
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split_result.append({"img": cropped_img, "x_offset": offset, "y_offset": 0})
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# 最后一次裁剪时不足的部分填充黑色
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last_img = split_result[-1]["img"]
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split_result[-1]["img"] = cv2.copyMakeBorder(last_img, 0, 0, 0, round(cropped_height - last_img.shape[1]),
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cv2.BORDER_CONSTANT, value=(0, 0, 0))
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else:
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split_result.append({"img": img, "x_offset": 0, "y_offset": 0})
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return split_result
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# 获取图片旋转角度
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def get_image_rotation_angles(img):
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angles = ['0', '90']
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model = paddleclas.PaddleClas(model_name="text_image_orientation")
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result = model.predict(input_data=img)
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try:
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result = next(result)[0]
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if result["scores"][0] < 0.5:
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return angles
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angles = result["label_names"]
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except Exception as e:
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logging.error("获取图片旋转角度失败", exc_info=e)
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return angles
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def rotate_image(img, angle):
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if angle == 0:
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return img
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height, width, _ = img.shape
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if angle == 180:
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new_width = width
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new_height = height
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else:
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new_width = height
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new_height = width
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# 绕图像的中心旋转
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# 参数：旋转中心 旋转度数 scale
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matrix = cv2.getRotationMatrix2D((width / 2, height / 2), angle, 1)
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# 旋转后平移
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matrix[0, 2] += (new_width - width) / 2
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matrix[1, 2] += (new_height - height) / 2
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# 参数：原始图像 旋转参数 元素图像宽高
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rotated = cv2.warpAffine(img, matrix, (new_width, new_height))
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return rotated
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def rotate_rectangle(rectangle, center, angle):
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def rotate_point(pt, angle, center):
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matrix = cv2.getRotationMatrix2D(center, angle, 1)
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# 旋转后平移
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matrix[0, 2] += center[1] - center[0]
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matrix[1, 2] += center[0] - center[1]
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reverse_matrix = cv2.invertAffineTransform(matrix)
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pt = np.array([[pt[0]], [pt[1]], [1]])
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return np.dot(reverse_matrix, pt)
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x1, y1, x2, y2 = rectangle
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# 计算矩形的四个顶点
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top_left = (x1, y1)
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bot_left = (x1, y2)
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top_right = (x2, y1)
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bot_right = (x2, y2)
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# 旋转矩形的四个顶点
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rot_top_left = rotate_point(top_left, angle, center).astype(int)
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rot_bot_left = rotate_point(bot_left, angle, center).astype(int)
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rot_bot_right = rotate_point(bot_right, angle, center).astype(int)
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rot_top_right = rotate_point(top_right, angle, center).astype(int)
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# 找出旋转后矩形的新左上角和右下角坐标
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new_top_left = (min(rot_top_left[0], rot_bot_left[0], rot_bot_right[0], rot_top_right[0]),
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min(rot_top_left[1], rot_bot_left[1], rot_bot_right[1], rot_top_right[1]))
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new_bot_right = (max(rot_top_left[0], rot_bot_left[0], rot_bot_right[0], rot_top_right[0]),
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max(rot_top_left[1], rot_bot_left[1], rot_bot_right[1], rot_top_right[1]))
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return [new_top_left[0], new_top_left[1], new_bot_right[0], new_bot_right[1]]
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def get_ocr_layout(ocr, img_path):
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def _get_box(old_box):
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new_box = [
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min(old_box[0][0], old_box[3][0]), # x1
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min(old_box[0][1], old_box[1][1]), # y1
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max(old_box[1][0], old_box[2][0]), # x2
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max(old_box[2][1], old_box[3][1]), # y2
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]
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return new_box
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def _normal_box(box_data):
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# Ensure the height and width of bbox are greater than zero
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if box_data[3] - box_data[1] < 0 or box_data[2] - box_data[0] < 0:
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return False
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return True
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layout = []
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ocr_result = ocr.ocr(img_path, cls=False)
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ocr_result = ocr_result[0]
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if not ocr_result:
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return layout
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for segment in ocr_result:
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box = segment[0]
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box = _get_box(box)
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if not _normal_box(box):
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continue
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text = segment[1][0]
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layout.append((box, text))
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return layout
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def find_box_of_content(content, layout):
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full_box = layout[0]
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box_len = full_box[2] - full_box[0]
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text = layout[1]
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text_len = len(text)
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char_len = box_len / text_len
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index = text.index(content)
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return (
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full_box[0] + index * char_len,
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full_box[1],
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full_box[0] + (index + len(content)) * char_len,
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full_box[3],
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)
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def mask_image(image, content):
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with tempfile.NamedTemporaryFile(delete=False, suffix=".jpg") as temp_file:
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cv2.imwrite(temp_file.name, image)
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result = []
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try:
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layouts = get_ocr_layout(OCR, temp_file.name)
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if not layouts:
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# 无识别结果
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return result
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else:
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# 涂抹
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for layout in layouts:
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if content in layout[1]:
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result.append(find_box_of_content(content, layout))
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return result
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except Exception as e:
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logging.error("涂抹时出错", exc_info=e)
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finally:
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try:
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os.remove(temp_file.name)
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except Exception as e:
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logging.info(f"删除临时文件 {temp_file.name} 时出错", exc_info=e)
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def photo_mask(pk_phhd, content):
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session = MysqlSession()
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phrecs = session.query(ZxPhrec.pk_phrec, ZxPhrec.pk_phhd, ZxPhrec.cfjaddress) \
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.filter(ZxPhrec.pk_phhd == pk_phhd) \
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.filter(ZxPhrec.cRectype.in_(["3", "4"])) \
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.all()
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session.close()
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for phrec in phrecs:
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is_copy_success = ucloud.copy_file(BUCKET, phrec.cfjaddress, "drg2015", phrec.cfjaddress)
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if not is_copy_success:
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continue
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img_url = ucloud.get_private_url(phrec.cfjaddress)
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if not img_url:
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continue
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# 打开图片
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image = open_image(img_url)
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split_result = split_image(image)
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for img in split_result:
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angles = get_image_rotation_angles(img["img"])
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rotated_img = rotate_image(img["img"], int(angles[0]))
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results = mask_image(rotated_img, content)
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for result in results:
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height, width = img["img"].shape[:2]
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center = (width / 2, height / 2)
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result = rotate_rectangle(result, center, int(angles[0]))
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result = (
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result[0] + img["x_offset"],
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result[1] + img["y_offset"],
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result[2] + img["x_offset"],
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result[3] + img["y_offset"],
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)
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cv2.rectangle(image, (int(result[0]), int(result[1])), (int(result[2]), int(result[3])),
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(255, 255, 255), -1, 0)
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with tempfile.NamedTemporaryFile(delete=False, suffix=".jpg") as temp_file:
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cv2.imwrite(temp_file.name, image)
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cv2.imwrite(f"./mask_test2/{phrec.cfjaddress}.jpg", image)
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for i in range(3):
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is_upload_success = ucloud.upload_file(phrec.cfjaddress, temp_file.name)
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if is_upload_success:
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break
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if __name__ == '__main__':
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logging.config.dictConfig(LOGGING_CONFIG)
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try:
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while 1:
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session = MysqlSession()
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phhds = session.query(ZxPhhd.pk_phhd, ZxPhhd.cXm).filter(
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ZxPhhd.paint_flag == "1"
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).limit(PHHD_BATCH_SIZE).all()
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# 将状态改为正在涂抹中
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pk_phhd_values = [phhd.pk_phhd for phhd in phhds]
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update_flag = (update(ZxPhhd).where(ZxPhhd.pk_phhd.in_(pk_phhd_values)).values(paint_flag="2"))
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session.execute(update_flag)
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session.commit()
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session.close()
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if phhds:
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for phhd in phhds:
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pk_phhd = phhd.pk_phhd
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logging.info(f"开始涂抹：{pk_phhd}")
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photo_mask(pk_phhd, phhd.cXm)
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# 识别完成更新标识
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session = MysqlSession()
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update_flag = (update(ZxPhhd).where(ZxPhhd.pk_phhd == pk_phhd).values(paint_flag="8"))
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session.execute(update_flag)
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session.commit()
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session.close()
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else:
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# 没有查询到新案子，等待一段时间后再查
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log = logging.getLogger()
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log.info(f"暂未查询到需要涂抹的案子，等待{SLEEP_MINUTES}分钟...")
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sleep(SLEEP_MINUTES * 60)
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except Exception as e:
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logging.error(traceback.format_exc())
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send_an_error_email(program_name='照片涂抹脚本', error_name=repr(e), error_detail=traceback.format_exc())
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