video edge detection

Use opencv-python library to detect the edge of anime video.

environment

• Python 3.7+

setup

install dependencies:

pip install -r requirement_dev.txt

usage

edit canny.py options as follows:

# =======================API params(用户参数)=======================
# 高斯模糊的核大小，必须为 (3,3) 或 (5,5) 或(7,7)
gaussian_ksize = (3, 3)
# 输出视频的背景颜色，RGB 格式，必须为数组格式
bg_color_rgb = [237, 244, 247]
# 输出视频的线条颜色，RGB 格式，必须为数组格式
line_color_rgb = [173, 155, 236]
# canny 低阈值
canny_low_threshold = 30
# canny 高阈值，一般为低阈值的 2 或 3 倍
canny_high_threshold = 90
# 形态学膨胀核，修复 canny 边缘检测后的线条太细的问题, 核越大，线条越粗。
dilation_ksize = (2, 2)
# 输入视频的路径
input_video_path = "materials/videos/2007-autumn-anime-spot-op.mp4"
# 输出视频的文件夹，手动创建保证存在
output_folder = "output"
# ================================================================

Then run command:

python canny.py

If all goes well without errors, you can see three files are generated in output_folder, similar to the following:

- 2007-autumn-anime-spot-op-[canny]-[add-audio].mp4
- 2007-autumn-anime-spot-op-[canny].mp4
- 2007-autumn-anime-spot-op.wav

The 2007-autumn-anime-spot-op-[canny]-[add-audio].mp4 is the final output result.

documents

Some related documents are located in docs folder:

• edge-detect-quality: how to increase canny detect quality.
• opencv-get-started-notes.md: some basic opencv knowledge.

LICENSE

Mixed LICENSE

• All codes except (reimplement_canny.py) are under MIT LICENSE.
• reimplement_canny.py is under No License components due to the absence of LICENSE in scatter-animation-for-ikun.