Welcome to AI View Depth camera repository

5.Pixel Operation

OpenCV pixel operations

For pixel operations, we can change any position to a new pixel color. Here we first read the image, and then assign an area to white.

Start Docker

After entering the Raspberry Pi 5 desktop, open a terminal and run the following command to start the container corresponding to Dofbot:


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./Docker_Ros.sh

Access Jupyter Lab within Docker:


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IP:9999 // Example: 192.168.1.11:9999

Code path:

/root/Dofbot/4.opencv/1.OpenCV_basic/04_pixel_pic.ipynb

The main code is as follows:


x
import cv2

img = cv2.imread('yahboom.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)
     &nb
 Picture Quality
Picture scaling