ComDesignProject/example_yolov7.py

38 lines
1.4 KiB
Python

import torch
from torchvision import transforms
import numpy as np
import cv2
import param
from detect import YOLOv7
def get_img_test(path_src:str):
raw_img = cv2.imread(path_src)
raw_transform = transforms.Compose([transforms.ToPILImage(),
transforms.Resize((360,640)),
transforms.Pad((0,(640-360)//2)),
transforms.ToTensor()])
return raw_transform(raw_img).unsqueeze(dim=0)
def opencv_box_plot(img:cv2.Mat,pred_img:np.array):
pred_img = pred_img.astype(np.uint)
for info in pred_img:
x1,y1,x2,y2 = info[0],info[1],info[2],info[3]
cv2.rectangle(img,(x1,y1-140),(x2,y2-140),(255,0,0),2)
cv2.imshow("test",img)
cv2.waitKey(0)
cv2.imwrite("result.png",img)
# example
if __name__ == '__main__':
my_option = param.Parameters()
model = YOLOv7(my_option) # load model in head
with torch.no_grad():
img = get_img_test("test.png") # get image as torch.Tensor with size of [1,1,640,640]
result = model.detect(img) # get the sequence of result
result = result[0].detach().cpu().numpy() # the single img is index 0
img_src = cv2.imread("test.png") # re-read for imshow
img_src = cv2.resize(img_src,(640,360))
opencv_box_plot(img_src,result) # show the result in picture