69 lines
2.3 KiB
Text
69 lines
2.3 KiB
Text
|
"""
|
||
|
|
Experimental converter that transforms standard png, jpg and bmp files to useable bmp files which can be used by the Calendar.
|
||
|
|
# Currently in ALPHA mode. Please use with caution and keep backups
|
||
|
|
# Version 1.0 (initial)
|
||
|
|
|
||
|
|
# Copyright by Ace-Laboratory
|
||
|
|
"""
|
||
|
|
|
||
|
|
## What this script does:
|
||
|
|
# grab images from one folder, perform some operations and paste them in an output folder.
|
||
|
|
# The operations consists of removing the alpha channel, reducing the colours to (currently) just two,
|
||
|
|
# Inverting the colours (as the display inverts them again) and rotating the picture by 90 deg clockwise
|
||
|
|
|
||
|
|
## Please only use png files for now as that has been tested and confirmed to work so far.
|
||
|
|
|
||
|
|
import glob, os, errno
|
||
|
|
from PIL import Image
|
||
|
|
import PIL.ImageOps
|
||
|
|
#--------------only change the following two lines-----------------#
|
||
|
|
input_folder = '/home/pi/input/'
|
||
|
|
output_folder = '/home/pi/output/'
|
||
|
|
#-----------------no need to change anything below----------------#
|
||
|
|
|
||
|
|
os.chdir(input_folder)
|
||
|
|
|
||
|
|
pngs = []
|
||
|
|
for files in glob.glob("*.png"):
|
||
|
|
pngs.append(os.path.splitext(os.path.basename(files))[0])
|
||
|
|
|
||
|
|
bmps = []
|
||
|
|
for files in glob.glob("*.bmp"):
|
||
|
|
bmps.append(files)
|
||
|
|
|
||
|
|
jpegs= []
|
||
|
|
for files in glob.glob("*.jpg"):
|
||
|
|
print(os.path.splitext(os.path.basename(files))[0])
|
||
|
|
jpegs.append(os.path.splitext(os.path.basename(files))[0])
|
||
|
|
|
||
|
|
print('converting...')
|
||
|
|
|
||
|
|
thresh = 126 # any value below 127 works.
|
||
|
|
fn = lambda x : 255 if x > thresh else 0
|
||
|
|
|
||
|
|
# PNG to BMP conversion
|
||
|
|
for files in pngs: #part1: first from png to bmp
|
||
|
|
png=Image.open(input_folder+files+".png")
|
||
|
|
png.load()
|
||
|
|
background = Image.new("RGB", png.size, (255, 255, 255))
|
||
|
|
background.paste(png, mask=png.split()[3])
|
||
|
|
background.convert('L').point(fn, mode='1').save((output_folder+files+'.bmp'), 'BMP', quality=90)
|
||
|
|
|
||
|
|
png_bmp = [] #part2: and then from bmp to bmp
|
||
|
|
os.chdir(output_folder)
|
||
|
|
for files in glob.glob("*.bmp"):
|
||
|
|
png_bmp.append(files)
|
||
|
|
for files in png_bmp:
|
||
|
|
(PIL.ImageOps.invert((Image.open(output_folder+files).rotate(-90, expand=True)).convert('L'))).save(output_folder+files)
|
||
|
|
|
||
|
|
# BMP to BMP conversion
|
||
|
|
for files in bmps:
|
||
|
|
(PIL.ImageOps.invert((Image.open(input_folder+files).rotate(-90, expand=True)).convert('L'))).save(output_folder+files)
|
||
|
|
|
||
|
|
# JPG to BMP (do not use)
|
||
|
|
for files in jpegs:
|
||
|
|
(Image.open(input_folder+files+".jpg").convert('L').save(output_folder+files+".bmp"))
|
||
|
|
print('All done')
|
||
|
|
|
||
|
|
|