Small python project to generate movies with a droste effect.
To setup a virtual environment with python3 and the dependencies installed, execute in a shell:
python3 -m venv venv3
source venv3/bin/activate
pip install -r requirements.txt
You can now run the main script:
python pydroste.py --input=beach.jpg \
--output=beach.mp4 \
--center=1904,1940 \
--scale=125
And it should create a zooming in movie:
Beside the input and output parameters, the important flags are
center
and scale
. center
determines the point in the input picture
to zoom in on. Scale
is the scale of the sub-image compared to the main
image. In other words, this is how far you need to zoom in to have the
main image be replaced by the sub-image completely and which would
complete one loop.
The two other flags you can pass are frames
, which determines how
many frames the output image will have and fps
, which determines
how many frames per seconds the output movie will play with.
The pydroste_multiple.py
script can render loops with multiple zoom
points. The basic pattern is the same, except that a parameter zoom_points
needs to be supplied that contains a list of ;
separated tuples
specifying the various zoom point as center_x,center_y,scale