extract images from the video

convert to 24 fps.py

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+import cv2
+import numpy as np
+
+# Open the video file
+cap = cv2.VideoCapture("video_signal.mp4")
+
+# Get the video frames per second (fps) and frame size
+fps = cap.get(cv2.CAP_PROP_FPS)
+frame_size = (int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)),
+              int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT)))
+
+# Define the desired output frame rate and the codec
+output_fps = 24.0
+fourcc = cv2.VideoWriter_fourcc(*"mp4v")
+
+# Create a video writer object
+out = cv2.VideoWriter("output.mp4", fourcc, output_fps, frame_size)
+
+# Create a buffer to store the previous frame
+previous_frame = None
+
+# Loop over the frames of the input video
+while True:
+    ret, frame = cap.read()
+    if not ret:
+        break
+
+    # Skip every (fps / output_fps) - 1 frame
+    if previous_frame is not None and (fps / output_fps) > 1.5:
+        skip_frame = int(fps / output_fps) - 1
+        for i in range(skip_frame):
+            cap.grab()
+    else:
+        # Interpolate the frame to match the desired output frame rate
+        if previous_frame is not None:
+            frame = (previous_frame + frame) / 2.0
+        previous_frame = frame
+
+    # Write the frame to the output video
+    out.write(np.uint8(frame))
+
+# Release the video capture and writer objects
+cap.release()
+out.release()

convert_to_30secvideo.py

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+import cv2
+
+# Open the video file
+cap = cv2.VideoCapture("output.mp4")
+
+# Get the video frames per second (fps) and frame size
+fps = cap.get(cv2.CAP_PROP_FPS)
+frame_size = (int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)),
+              int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT)))
+
+# Calculate the number of frames in the first 30 seconds of the video
+total_frames = int(fps * 30)
+
+# Define the codec and create a video writer object
+fourcc = cv2.VideoWriter_fourcc(*"mp4v")
+out = cv2.VideoWriter("output2.mp4", fourcc, fps, frame_size)
+
+# Loop over the first 30 seconds of the video
+for i in range(total_frames):
+    ret, frame = cap.read()
+    if not ret:
+        break
+
+    # Write the frame to the output video
+    out.write(frame)
+
+# Release the video capture and writer objects
+cap.release()
+out.release()

extract_images_from_video.py

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+import cv2
+import os
+
+# Open the video file
+cap = cv2.VideoCapture("output2.mp4")
+
+# Get the video frames per second (fps) and frame size
+fps = cap.get(cv2.CAP_PROP_FPS)
+frame_size = (int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)),
+              int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT)))
+
+# Calculate the number of frames in the first 30 seconds of the video
+total_frames = int(fps * 30)
+
+# Create a directory to store the extracted frames
+os.makedirs("frames", exist_ok=True)
+
+# Loop over the first 30 seconds of the video
+for i in range(total_frames):
+    ret, frame = cap.read()
+    if not ret:
+        break
+
+    # Save the frame as an image
+    filename = f"frames/frame_{i:05d}.jpg"
+    cv2.imwrite(filename, frame)
+
+# Release the video capture object
+cap.release()