图生图之超分辨率（2）

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基于插值的超分辨率技术。
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import cv2
from cv2 import dnn_superres

img_path = "D:/20210921_78339.png"
scale = 4
algorithm = "bicubic"

# 载入图像
img = cv2.imread(img_path)

# 创建模型
sr = dnn_superres.DnnSuperResImpl_create()

if algorithm == "bilinear":
    img_new = cv2.resize(img, None, fx=scale, fy=scale, interpolation=cv2.INTER_LINEAR)
elif algorithm == "bicubic":
    img_new = cv2.resize(img, None, fx=scale, fy=scale, interpolation=cv2.INTER_CUBIC)

print("Upsampling succeeded. \n")
 
# 保存图片
cv2.imwrite("saved.jpg", img_new)