AIOT魔法师

图像区域裁剪

opencv-python-3.4.9.31

import cv2import numpy as npimport matplotlib.pylab as plt img = cv2.imread('img.jpg',0)ret,thresh1 = cv2.threshold(img,127,255,cv2.THRESH_BINARY)ret,thresh2 = cv2.threshold(img,127,255,cv2.THRESH_BINARY_INV)ret,thresh3 = cv2.threshold(img,127,255,

将普通opencv图像转换成base64：def image_to_base64(image_np): image = cv2.imencode('.jpg',image_np)[1] image_code = str(base64.b64encode(image))[2:-1] return image_code将Bse64转换成Openc图像：def base64_to_image(base64_code): # base64解码 img_data

import cv2img = cv2.imread('test.jpg')img = cv2.resize(img, (img.shape[1]//2, img.shape[0]//2), interpolation=cv2.INTER_CUBIC)cv2.imwrite('lena2.jpg', img)cv2.imshow('image2', img)cv2.waitKey(0)