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In this article, the editor introduces in detail "how to use Python to shoot time-delay photography", the content is detailed, the steps are clear, and the details are handled properly. I hope this article "how to use Python to shoot time-delay photography" can help you solve your doubts.

Prepare for

Before you begin, make sure that Python and pip are successfully installed on your computer.

(optional 1) if you use Python for data analysis, you can install Anaconda directly, which comes with Python and pip.

(optional 2) in addition, we recommend using the VSCode editor, which has many advantages.

Please choose any of the following ways to enter the command to install dependencies:

1. Windows environment opens Cmd (start-run-CMD).

2. Open Terminal in MacOS environment (enter Terminal in command+ space).

3. If you are using a VSCode editor or Pycharm, you can use Terminal directly at the bottom of the interface.

Pip install moviepypip install pypiwin32pip install pillow

All the code in this article is open source in the warehouse

Regular "shooting"

In order to implement the logic of timing shooting, we need to use the pypiwin32 module and the pillow module, which were introduced in the previous article:

Super convenient screenshot script for Python automatic Wake-up window

It is divided into three steps:

1. Get the game window interface

two。 Get the size of the game interface

3. Screenshot

Cycle through the above three steps every N seconds, and the code is as follows:

# main.py# Python practical treasure book # 2022-03-25import timeimport win32guifrom PIL import ImageGrabdef get_window_pos (name): name = name handle = win32gui.FindWindow (0, name) if handle = 0: return None else: return win32gui.GetWindowRect (handle), handlewhile True: try: (x1, y1, x2, y2) Handle = get_window_pos ('extreme Speed: horizon 4') win32gui.SetForegroundWindow (handle) img_ready = ImageGrab.grab ((x1, y1, x2, y2)) img_ready.save (f ". / result/ {time.time ()} .jpg") time.sleep (5) except Exception as e: print (e)

Please note that "extreme Speed: horizon 4" should be changed to the name of the game you shot, so that screenshots will be generated automatically under the result folder after running the program:

After successfully intercepting the scene picture of the time period you want, you can splice and supplement the background music section below.

Stitching delay photography video

In order to achieve the effect of time-lapse photography, we will use the moviepy module in this section to stitch all the pictures into one video.

Of course, to add background music, the code is actually very simple, calling some of the functions of the moviepy module:

# jointer.py# Python practical treasure book # 2022-03-25import osimport moviepyimport moviepy.video.io.ImageSequenceClipfrom moviepy.editor import * def pics2video (frames_dir, video_dst, music, fps=10): "Image composition MP4 Args: frames_dir (str): picture directory video_dst (str): target directory fps (int, optional): number of frames. Defaults to 25." Frames_name = sorted (os.listdir (frames_dir)) frames_path = [frames_dir+frame_name for frame_name in frames_name] clip = moviepy.video.io.ImageSequenceClip.ImageSequenceClip (frames_path, fps=fps) audio_clip = AudioFileClip (music) .volumex audio = afx.audio_loop (audio_clip, duration=clip.duration) final_video = clip.set_audio (audio) final_video.write_videofile (video_dst Codec='libx264') music = 'make a spark. Mp3'frames_dir ='. / result/'video_dst = 'screenshots.mp4'pics2video (frames_dir, video_dst, music)

1. Put your music in the current directory and change the music variable to the corresponding file name.

two。 Adjust the fps parameter you want-the number of frames, the lower the value, the smoother the picture.

After running this file, 'screenshots.mp4'. is generated under the current folder This is the result of our processing. Double-click to open it.

After reading this, the article "how to use Python to shoot time-lapse photography" has been introduced. If you want to master the knowledge of this article, you still need to practice and use it yourself. If you want to know more about related articles, you are welcome to follow the industry information channel.

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