$ python3 bokeh_me.py <image_path> <kernel_path> <kernel_side_size>

$ python3 bokeh_me.py -h

$ python3 bokeh_me.py -h
usage: bokeh_me.py [-h] [--save_to_folder SAVE_TO_FOLDER]
                   image_path kernel_path kernel_side_size

This program puts a bokeh effect on an image.User chooses the kernel picture
and the image to use bokeh effect on.Image has three channels (RGB). Each
channel goes through pixel overlaying.Kernel is a black and white picture,
that overlays source image channel's pixels.

positional arguments:
  image_path            The path of the image to process.
  kernel_path           The path of the image to process.
  kernel_side_size      The width (columns number) and length (rows number) of
                        the kernel.

optional arguments:
  -h, --help            show this help message and exit
  --save_to_folder SAVE_TO_FOLDER
                        Set bokeh image save path.

$ python3 bokeh_me.py blue_lights.jpg tri.tif 19 --save_to_folder D:\

2020-07-18 02:56:44,719 INFO Processing image...
2020-07-18 02:56:50,945 INFO Channel 1/3 processed.
2020-07-18 02:56:57,692 INFO Channel 2/3 processed.
2020-07-18 02:57:04,312 INFO Channel 3/3 processed.
2020-07-18 02:57:04,312 INFO Channels processed.
2020-07-18 02:57:04,327 INFO Image blue_lights_bokeh_tri_19.jpg saved to D:\