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103 lines
3.2 KiB
Python
103 lines
3.2 KiB
Python
import cv2
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import numpy as np
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from keras.models import load_model
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from keras.layers import Lambda
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from keras import backend as K
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import os
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import random
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"""
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孪生网络 对比模型
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"""
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resize_height, resize_width, channel = 52, 52, 3
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weight = "./best.h5"
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output = Lambda(lambda x: K.abs(x[0] - x[1]))
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model = load_model(weight, custom_objects={'output': output})
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image_path = os.listdir("./data")
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# 随机选取一张图片
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# inp = input('请输入图片名称：')
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image_path = "./data/" + random.choice(image_path)
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# image_path = './sample/' + inp
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weight = "./yolov3-tiny_17000.weights"
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cfg = "./yolov3-tiny.cfg"
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img = cv2.imread(image_path)
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# 加载模型
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net = cv2.dnn.readNet(weight, cfg)
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height, width, channels = img.shape
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blob = cv2.dnn.blobFromImage(img, 0.00392, (416, 416), (0, 0, 0), True, crop=False) # 预处理
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net.setInput(blob)
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outs = net.forward(net.getUnconnectedOutLayersNames())
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class_ids = []
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confidences = []
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boxes = []
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for out in outs:
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for detection in out:
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scores = detection[5:]
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class_id = np.argmax(scores)
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confidence = scores[class_id]
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if confidence > 0.1:
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center_x = int(detection[0] * width)
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center_y = int(detection[1] * height)
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w = int(detection[2] * width)
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h = int(detection[3] * height)
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x = int(center_x - w / 2)
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y = int(center_y - h / 2)
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boxes.append([x, y, w, h])
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confidences.append(float(confidence))
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class_ids.append(class_id)
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indexes = cv2.dnn.NMSBoxes(boxes, confidences, 0.1, 0.1)
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thickness = 2
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color = (0, 255, 0)
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font = cv2.FONT_HERSHEY_PLAIN
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new_boxes = []
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for i in range(len(boxes)):
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if i in indexes:
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x, y, w, h = boxes[i]
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new_boxes.append([x, y, w, h])
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up_img = sorted(new_boxes, key=lambda x_: x_[1])[0:len(new_boxes)//2] # 按照y排列 取出上面的
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up_img = sorted(up_img, key=lambda x_: x_[0]) # 按照x排序
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location_up = {}
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for i, j in enumerate(up_img):
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location_up[i+1] = [img[j[1]:j[1]+j[3], j[0]:j[0]+j[2]].astype('float64') / 255.0, j]
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down_img = sorted(new_boxes, key=lambda x_: x_[1])[len(new_boxes)//2:] # 取出下面的
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down_img = sorted(down_img, key=lambda x_: x_[0]) # 按照x排序
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location_down = {}
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for i, j in enumerate(down_img):
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# location[i+1] = j
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location_down[i+1] = [img[j[1]:j[1]+j[3], j[0]:j[0]+j[2]].astype('float64') / 255.0, j]
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new_list = []
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for down_i, down_img_ in location_down.items():
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# 先是读取下面的图
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temp = []
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for up_i, up_img_ in location_up.items():
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down = np.expand_dims(cv2.resize(down_img_[0], (52, 52)), axis=0)
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up = np.expand_dims(cv2.resize(up_img_[0], (52, 52)), axis=0)
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predict = model.predict([down, up])
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temp.append(predict[0][0])
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temp_ = temp.index(max(temp))
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new_list.append([down_img_[1], temp_])
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for (box, pos) in new_list:
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x, y, w, h = box[0], box[1], box[2], box[3]
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x1, y1, x2, y2 = x, y, x + w, y + h
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cv2.rectangle(img, (x1, y1), (x2, y2), (0, 0, 255))
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cv2.putText(img, str(pos+1), (x1, y1), cv2.FONT_HERSHEY_PLAIN, 1, color, thickness)
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cv2.imshow('1', img)
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cv2.waitKey(0)
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