import cv2img = cv2.imread('libaray.JPG',1) (b,g,r) = img[100,100] print(b,g,r)# bgr #10 100 --- 110 100 i=j=0 for j in range(1,500):img[i,j] = (255,255,255)for i in range(1,500):img[i,j] = (255,255,255)# cv2.imshow('image',img) # cv2.waitKey(0) #1000 ms
#bgr8转jpeg格式 import enum import cv2def bgr8_to_jpeg(value, quality=75):return bytes(cv2.imencode('.jpg', value)[1])
import ipywidgets.widgets as widgetsimage_widget1 = widgets.Image(format='jpg', ) image_widget2 = widgets.Image(format='jpg', ) # create a horizontal box container to place the image widget next to eachother image_container = widgets.HBox([image_widget1, image_widget2])# display the container in this cell's output display(image_container)img1 = cv2.imread('libaray.JPG',1)image_widget1.value = bgr8_to_jpeg(img1) #原始的 image_widget2.value = bgr8_to_jpeg(img) #经过像素操作的