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""" | |
This creates the following GIF, where the text appears to be "embedded" | |
in the video and "disappears" beind rapunzel. | |
http://i.imgur.com/gxEHfLX.gif | |
""" | |
from moviepy.editor import * | |
import numpy as np | |
import skimage.morphology as skm | |
tangled = VideoFileClip("tangled.flv", audio=False) | |
clip = tangled.subclip((32,37.2),(32,39.7)).resize(width=360) | |
ref_frame = clip.get_frame(0) | |
text = (TextClip("MoviePy !!!", fontsize=72, font='Impact-Normal', | |
color='yellow', stroke_color='black', stroke_width=3) | |
.resize(width=125) | |
.on_color(size=clip.size, col_opacity=0) | |
.set_duration(clip.duration)) | |
def mask_fl(gf, t): | |
frame = clip.get_frame(t) | |
diff = (((frame-ref_frame)**2).max(axis=2) > 10**2) | |
cleaned = skm.remove_small_objects(diff, 40) | |
dilated = skm.binary_dilation(cleaned, skm.diamond(2)) | |
return np.minimum(gf(t), 1.0-dilated) | |
text.mask = text.mask.fl(mask_fl, keep_duration=True) | |
final = CompositeVideoClip([clip, text]) | |
final.write_gif('moviepy.gif', fps= 3*tangled.fps/5,) |
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