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@mtvee /image2xp.py
Last active Mar 4, 2016

What would you like to do?
convert an image to REXPaint xp or ascii, with optional resize
#
# translate an image file into the REXPaint file format
# or plain ascii
#
# requires: python 3+
# requires: pip install Pillow
#
# source: https://gist.github.com/mtvee/5629a2caa34dbf3ece95
# ---------------------------------------------------------------------------------
import os
import struct
import argparse
from PIL import Image
def fromImage( fname, size=0, txtout = False, overwrite=False ):
chars = ['@','#','$','=','*','!',';',':','~','-',',','.',' ', ' ']
im = Image.open( fname )
# convert whatever to rgb
rgbim = im.convert('RGB')
# make a thumbnail if ordered
if size != 0:
rgbim.thumbnail((size,size), Image.ANTIALIAS)
# get the filename
fname = os.path.basename(fname)
namepart = os.path.splitext(fname)[0]
# set the default outputs
oname = namepart + '.xp'
wmode = 'wb'
fp = ''
# for ascii output
if txtout:
oname = namepart + '.txt'
wmode = 'w'
# check for overwrite
if os.path.isfile(oname):
if overwrite:
os.unlink(oname)
else:
print('file exists, write aborted: ' + oname )
return
fp = open(oname, wmode)
# write the xp header info
if not txtout:
fp.write(struct.pack('i', 1))
fp.write(struct.pack('i', 1))
fp.write(struct.pack('i', rgbim.size[0]))
fp.write(struct.pack('i', rgbim.size[1]))
# bomb thru the pixels
for x in range(rgbim.size[0]):
s = ''
for y in range(rgbim.size[1]):
r, g, b = rgbim.getpixel((x,y))
val = max(r, g, b)/255;
ch = chars[int(val*(len(chars)-1))]
if txtout:
s += ch
else:
fp.write(struct.pack('i', ord(ch)))
fp.write(struct.pack('BBBBBB', r,g,b,0,0,0))
if txtout:
print( s, file=fp )
if __name__ == '__main__':
parser = argparse.ArgumentParser('Convert image to REXPaint xp format or ascii')
parser.add_argument('--force', action='store_true', help='overwrite an existing file')
parser.add_argument('--text', action='store_true', help='output to ascii')
parser.add_argument('--size', action='store', type=int, default=0, help='resize to size')
parser.add_argument('filename')
args = parser.parse_args()
fromImage(args.filename, args.size, args.text, args.force)
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