I am trying to create 2 recordings at the same time from one webcam. A low resolution video that i can use to train a neural network, and a higher resolution video for me to label data for my training. Does anyone know of any software i can use to do this that is light enough to be run on a raspberry Pi?
You can do this using python's opencv. See snippet below.
import cv2 import numpy as np # Create a VideoCapture object cap = cv2.VideoCapture(0) # Check if camera opened successfully if (cap.isOpened() == False): print("Unable to read camera feed") # Default resolutions of the frame are obtained.The default resolutions are system dependent. # We convert the resolutions from float to integer. frame_width = int(cap.get(3)) frame_height = int(cap.get(4)) # Define the codec and create VideoWriter object.The output is stored in 'outpy.avi' file. out = cv2.VideoWriter('output1.avi',cv2.VideoWriter_fourcc('M','J','P','G'), 10, (frame_width,frame_height)) out2 = cv2.VideoWriter('output2.avi',cv2.VideoWriter_fourcc('M','J','P','G'), 10, (640,480)) while(True): ret, frame = cap.read() if ret == True: # Write the frame into the file 'output.avi' out.write(frame) out2.write(frame) # Display the resulting frame cv2.imshow('frame',frame) # Press Q on keyboard to stop recording if cv2.waitKey(1) & 0xFF == ord('q'): break # Break the loop else: break # When everything done, release the video capture and video write objects cap.release() out.release() out2.release() # Closes all the frames cv2.destroyAllWindows()