I am working an a project to do some CV work with python and OpenCV. I am using a RPi Camera Module 3 Wide and I am getting wildly different images when capturing from them command line vs via a python script.
If I execute the command:
I get the following result: https://photos.app.goo.gl/ERUUZBbabnUh5PCk7
I wrote a very simple python script to display the camera output and optionally save the image to a file. I will post the script below but I get the following result:https://photos.app.goo.gl/45hocZPVqPVvjXEdA
I am clearly not setting something correct in the script. Any suggestions on how to get the image quality from the script to match the command line is much appreciated:
If I execute the command:
Code:
rpicam-still --width 2304 --height 1296 -o images/cli_test2.jpgI wrote a very simple python script to display the camera output and optionally save the image to a file. I will post the script below but I get the following result:https://photos.app.goo.gl/45hocZPVqPVvjXEdA
I am clearly not setting something correct in the script. Any suggestions on how to get the image quality from the script to match the command line is much appreciated:
Code:
#! /usr/bin/pythonimport cv2import numpy as npimport timefrom picamera2 import Picamera2, Previewfrom libcamera import controlsprint("Step 0: Setup Camera")cam_w = 2304cam_h = 1296picam2 = Picamera2()picam2.preview_configuration.main.size = (cam_w, cam_h)picam2.preview_configuration.main.format = "RGB888"picam2.start()print("Wait for Camera to Stabilize")time.sleep(2)while True: frame = picam2.capture_array() # Copy frame to proc_img proc_img = frame.copy() # Do ops on proc_img here # Display the live image cv2.imshow("PiCam2", proc_img) # press 'p' to snap a still pic # press 'q' to quit c = cv2.waitKey(1) if c == ord('p'): #snap picture file_name = "output" + time.strftime("_%Y%m%d_%H%M%S") + ".png" cv2.imwrite("images/"+file_name, frame) pic = cv2.imread("images/"+file_name) cv2.namedWindow(file_name) cv2.moveWindow(file_name, 0,0) cv2.imshow(file_name, pic) print("Image Taken") elif c == ord('q') or c == 27: #QUIT print("Quitting...") break# When everything done, release the capture#cap.release()cv2.destroyAllWindows()Statistics: Posted by foofarley — Tue Oct 08, 2024 3:58 pm — Replies 3 — Views 70