mirror of
https://github.com/hastagAB/Awesome-Python-Scripts.git
synced 2024-11-27 14:01:09 +00:00
91 lines
2.2 KiB
Python
91 lines
2.2 KiB
Python
# ===============================================================
|
|
# Author: Rodolfo Ferro Pérez
|
|
# Email: ferro@cimat.mx
|
|
# Twitter: @FerroRodolfo
|
|
#
|
|
# Script: Process signatures to remove background.
|
|
#
|
|
# ABOUT COPYING OR USING PARTIAL INFORMATION:
|
|
# This script was originally created by Rodolfo Ferro. Any
|
|
# explicit usage of this script or its contents is granted
|
|
# according to the license provided and its conditions.
|
|
# ===============================================================
|
|
|
|
from PIL import Image, ImageOps
|
|
import argparse
|
|
|
|
inFile = ''
|
|
outFile = ''
|
|
|
|
|
|
def binarize(img, threshold=127):
|
|
"""Utility function to binarize an image."""
|
|
|
|
for i in range(img.size[0]):
|
|
for j in range(img.size[1]):
|
|
if img.getpixel((i, j)) > threshold:
|
|
img.putpixel((i, j), 255)
|
|
else:
|
|
img.putpixel((i, j), 0)
|
|
|
|
return img
|
|
|
|
|
|
def make_transparent(img):
|
|
"""Utility function to make transparent background from image."""
|
|
|
|
img = img.convert("RGBA")
|
|
data = img.getdata()
|
|
|
|
transparent = []
|
|
for item in data:
|
|
if item[:3] == (255, 255, 255):
|
|
transparent.append((255, 255, 255, 0))
|
|
else:
|
|
transparent.append(item)
|
|
|
|
img.putdata(transparent)
|
|
return img
|
|
|
|
|
|
def main(inFile, outFile, threshold=190):
|
|
"""Main function to process image."""
|
|
|
|
img = Image.open(inFile).convert('L')
|
|
img = binarize(img, threshold=threshold)
|
|
img = make_transparent(img)
|
|
img.save(outFile)
|
|
|
|
return True
|
|
|
|
|
|
def parser():
|
|
"""Argument parser function."""
|
|
|
|
# Construct the argument parser:
|
|
ap = argparse.ArgumentParser()
|
|
|
|
ap.add_argument("-i", "--input",
|
|
required=True,
|
|
type=str,
|
|
default="result.png",
|
|
help="Input image.")
|
|
|
|
ap.add_argument("-o", "--output",
|
|
type=str,
|
|
default="result.png",
|
|
help="Output image.")
|
|
|
|
ap.add_argument("-th", "--threshold",
|
|
type=int,
|
|
default=127)
|
|
|
|
args = vars(ap.parse_args())
|
|
|
|
return args['input'], args['output'], args['threshold']
|
|
|
|
|
|
if __name__ == "__main__":
|
|
inFile, outFile, threshold = parser()
|
|
main(inFile, outFile, threshold=threshold)
|