74 lines
2.4 KiB
Python
74 lines
2.4 KiB
Python
|
'''
|
||
|
|
This script takes an image and splits it up into pieces as separate files.
|
||
|
|
|
||
|
|
drawn_quartered test.jpg --width 2 --height 2
|
||
|
|
drawn_quartered test.jpg outputname.jpg --width 3 --height 4
|
||
|
|
'''
|
||
|
|
|
||
|
|
import argparse
|
||
|
|
import math
|
||
|
|
import os
|
||
|
|
import PIL.Image
|
||
|
|
import sys
|
||
|
|
|
||
|
|
from voussoirkit import pathclass
|
||
|
|
|
||
|
|
def drawquarter(image, width=2, height=2):
|
||
|
|
pieces = []
|
||
|
|
(image_width, image_height) = image.size
|
||
|
|
step_x = image_width / width
|
||
|
|
step_y = image_height / height
|
||
|
|
if (step_x != int(step_x)):
|
||
|
|
print('Warning: Imperfect x', step_x)
|
||
|
|
if (step_y != int(step_y)):
|
||
|
|
print('Warning: Imperfect y', step_y)
|
||
|
|
step_x = math.ceil(step_x)
|
||
|
|
step_y = math.ceil(step_y)
|
||
|
|
for y in range(height):
|
||
|
|
end_y = y + 1
|
||
|
|
for x in range(width):
|
||
|
|
end_x = x + 1
|
||
|
|
coords = (step_x * x, step_y * y, step_x * end_x, step_y * end_y)
|
||
|
|
piece = image.crop(coords)
|
||
|
|
pieces.append(piece)
|
||
|
|
return pieces
|
||
|
|
|
||
|
|
def drawquarter_argparse(args):
|
||
|
|
image = PIL.Image.open(args.input_filename)
|
||
|
|
|
||
|
|
if args.output_filename is not None:
|
||
|
|
output_filename = args.output_filename
|
||
|
|
else:
|
||
|
|
output_filename = args.input_filename
|
||
|
|
|
||
|
|
output_path = pathclass.Path(output_filename)
|
||
|
|
output_directory = output_path.parent
|
||
|
|
os.makedirs(output_directory.absolute_path, exist_ok=True)
|
||
|
|
output_filename_format = output_path.basename
|
||
|
|
output_filename_format = output_filename_format.rsplit('.', 1)[0]
|
||
|
|
output_filename_format += '_%dx%d_{ycoord}-{xcoord}.' % (args.width, args.height)
|
||
|
|
output_filename_format += args.input_filename.rsplit('.', 1)[1]
|
||
|
|
|
||
|
|
pieces = drawquarter(image, width=args.width, height=args.height)
|
||
|
|
for (index, piece) in enumerate(pieces):
|
||
|
|
(ycoord, xcoord) = divmod(index, args.height)
|
||
|
|
output_filename = output_filename_format.format(xcoord=xcoord, ycoord=ycoord)
|
||
|
|
output_filename = output_directory.with_child(output_filename)
|
||
|
|
print(output_filename.relative_path)
|
||
|
|
piece.save(output_filename.absolute_path)
|
||
|
|
|
||
|
|
def main(argv):
|
||
|
|
parser = argparse.ArgumentParser()
|
||
|
|
|
||
|
|
parser.add_argument('input_filename')
|
||
|
|
parser.add_argument('output_filename', nargs='?', default=None)
|
||
|
|
parser.add_argument('--width', dest='width', type=int, default=2)
|
||
|
|
parser.add_argument('--height', dest='height', type=int, default=2)
|
||
|
|
parser.set_defaults(func=drawquarter_argparse)
|
||
|
|
|
||
|
|
args = parser.parse_args(argv)
|
||
|
|
args.func(args)
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
main(sys.argv[1:])
|