how does git?
This commit is contained in:
parent
3a10d780e5
commit
8af5015e66
390
ascii.py
390
ascii.py
|
|
@ -1,195 +1,195 @@
|
||||||
#! /usr/bin/env python3
|
#! /usr/bin/env python3
|
||||||
# -*- coding: utf-8 -*-
|
# -*- coding: utf-8 -*-
|
||||||
"""
|
"""
|
||||||
ASCII
|
ASCII.
|
||||||
"""
|
"""
|
||||||
from io import BytesIO
|
from io import BytesIO
|
||||||
|
|
||||||
import requests
|
import requests
|
||||||
from PIL import Image, ImageFont, ImageDraw
|
from PIL import Image, ImageFont, ImageDraw
|
||||||
#import imageio
|
#import imageio
|
||||||
import numpy as np
|
import numpy as np
|
||||||
import numpngw
|
import numpngw
|
||||||
|
|
||||||
ASCII_CHARS = "$@%#*+=-:. "
|
ASCII_CHARS = "$@%#*+=-:. "
|
||||||
HEADERS = {'User-Agent': 'Gimme the ascii.'}
|
HEADERS = {'User-Agent': 'Gimme the ascii.'}
|
||||||
|
|
||||||
|
|
||||||
def scale_image(image, size=(100,100)):
|
def scale_image(image, size=(100,100)):
|
||||||
"""
|
"""
|
||||||
Resizes an image while preserving the aspect ratio. Chooses the
|
Resizes an image while preserving the aspect ratio. Chooses the
|
||||||
dimension to scale by based on whichever is larger, ensuring that
|
dimension to scale by based on whichever is larger, ensuring that
|
||||||
neither width or height is ever larger than the accepted size tuple.
|
neither width or height is ever larger than the accepted size tuple.
|
||||||
|
|
||||||
Because text characters are typically pretty close to a 1:2 rectangle,
|
Because text characters are typically pretty close to a 1:2 rectangle,
|
||||||
we weight the width twice as much.
|
we weight the width twice as much.
|
||||||
"""
|
"""
|
||||||
original_width, original_height = image.size
|
original_width, original_height = image.size
|
||||||
original_width = original_width * 2
|
original_width = original_width * 2
|
||||||
if original_width > original_height:
|
if original_width > original_height:
|
||||||
if original_width > size[0]:
|
if original_width > size[0]:
|
||||||
new_width = size[0]
|
new_width = size[0]
|
||||||
aspect_ratio = original_height/float(original_width)
|
aspect_ratio = original_height/float(original_width)
|
||||||
new_height = int(aspect_ratio * new_width)
|
new_height = int(aspect_ratio * new_width)
|
||||||
else:
|
else:
|
||||||
new_width, new_height = image.size
|
new_width, new_height = image.size
|
||||||
else:
|
else:
|
||||||
if original_height > size[1]:
|
if original_height > size[1]:
|
||||||
new_height = size[1]
|
new_height = size[1]
|
||||||
aspect_ratio = original_width/float(original_height)
|
aspect_ratio = original_width/float(original_height)
|
||||||
new_width = int(aspect_ratio * new_height)
|
new_width = int(aspect_ratio * new_height)
|
||||||
else:
|
else:
|
||||||
new_width, new_height = image.size
|
new_width, new_height = image.size
|
||||||
image = image.resize((new_width, new_height))
|
image = image.resize((new_width, new_height))
|
||||||
return image
|
return image
|
||||||
|
|
||||||
|
|
||||||
def pixels_to_chars(image, reverse=False):
|
def pixels_to_chars(image, reverse=False):
|
||||||
"""
|
"""
|
||||||
Maps each pixel to an ascii char based on where it falls in the range
|
Maps each pixel to an ascii char based on where it falls in the range
|
||||||
0-255 normalized to the length of ASCII_CHARS.
|
0-255 normalized to the length of ASCII_CHARS.
|
||||||
"""
|
"""
|
||||||
range_width = int(255 / len(ASCII_CHARS)) + (255 % len(ASCII_CHARS) > 0)
|
range_width = int(255 / len(ASCII_CHARS)) + (255 % len(ASCII_CHARS) > 0)
|
||||||
|
|
||||||
pixels_in_image = list(image.getdata())
|
pixels_in_image = list(image.getdata())
|
||||||
pixels_to_chars = []
|
pixels_to_chars = []
|
||||||
for pixel_value in pixels_in_image:
|
for pixel_value in pixels_in_image:
|
||||||
if reverse:
|
if reverse:
|
||||||
index = -int(pixel_value/range_width)-1
|
index = -int(pixel_value/range_width)-1
|
||||||
else:
|
else:
|
||||||
index = int(pixel_value/range_width)
|
index = int(pixel_value/range_width)
|
||||||
pixels_to_chars.append(ASCII_CHARS[index])
|
pixels_to_chars.append(ASCII_CHARS[index])
|
||||||
|
|
||||||
return "".join(pixels_to_chars)
|
return "".join(pixels_to_chars)
|
||||||
|
|
||||||
|
|
||||||
def open_image(imagePath):
|
def open_image(imagePath):
|
||||||
"""
|
"""
|
||||||
Opens the image at the supplied file path in PIL. If an internet URL
|
Opens the image at the supplied file path in PIL. If an internet URL
|
||||||
is supplied, it will download the image and then open it.
|
is supplied, it will download the image and then open it.
|
||||||
"""
|
"""
|
||||||
try:
|
try:
|
||||||
if imagePath.startswith("http"):
|
if imagePath.startswith("http"):
|
||||||
res = requests.get(imagePath, headers=HEADERS, verify=True,
|
res = requests.get(imagePath, headers=HEADERS, verify=True,
|
||||||
timeout=20)
|
timeout=20)
|
||||||
res.raise_for_status()
|
res.raise_for_status()
|
||||||
image = Image.open(BytesIO(res.content))
|
image = Image.open(BytesIO(res.content))
|
||||||
else:
|
else:
|
||||||
image = Image.open(imagePath)
|
image = Image.open(imagePath)
|
||||||
except FileNotFoundError as e:
|
except FileNotFoundError as e:
|
||||||
return e
|
return e
|
||||||
except OSError:
|
except OSError:
|
||||||
return e
|
return e
|
||||||
except Exception as e:
|
except Exception as e:
|
||||||
return("Error opening image file: " + imagePath)
|
return("Error opening image file: " + imagePath)
|
||||||
|
|
||||||
return image
|
return image
|
||||||
|
|
||||||
|
|
||||||
def image_to_ascii(image, reverse=False):
|
def image_to_ascii(image, reverse=False):
|
||||||
"""
|
"""
|
||||||
Reads an image file and converts it to ascii art. Returns a
|
Reads an image file and converts it to ascii art. Returns a
|
||||||
newline-delineated string. If reverse is True, the ascii scale is
|
newline-delineated string. If reverse is True, the ascii scale is
|
||||||
reversed.
|
reversed.
|
||||||
"""
|
"""
|
||||||
image = scale_image(image)
|
image = scale_image(image)
|
||||||
image = image.convert('L') # convert to grayscale
|
image = image.convert('L') # convert to grayscale
|
||||||
|
|
||||||
chars = pixels_to_chars(image, reverse)
|
chars = pixels_to_chars(image, reverse)
|
||||||
|
|
||||||
image_ascii = []
|
image_ascii = []
|
||||||
for index in range(0, len(chars), image.size[0]):
|
for index in range(0, len(chars), image.size[0]):
|
||||||
image_ascii.append(chars[index: index + image.size[0]])
|
image_ascii.append(chars[index: index + image.size[0]])
|
||||||
image.close()
|
image.close()
|
||||||
del(image)
|
del(image)
|
||||||
return "\n".join(image_ascii)
|
return "\n".join(image_ascii)
|
||||||
|
|
||||||
|
|
||||||
def ascii_to_image(image_ascii):
|
def ascii_to_image(image_ascii):
|
||||||
"""
|
"""
|
||||||
Creates a plain image and draws text on it.
|
Creates a plain image and draws text on it.
|
||||||
"""
|
"""
|
||||||
# TODO: make font type, size, and image size non-fixed
|
# TODO: make font type, size, and image size non-fixed
|
||||||
width = len(image_ascii[:image_ascii.index("\n")]) * 8
|
width = len(image_ascii[:image_ascii.index("\n")]) * 8
|
||||||
height = (image_ascii.count("\n")+1) * 12 + 4
|
height = (image_ascii.count("\n")+1) * 12 + 4
|
||||||
|
|
||||||
font = ImageFont.truetype("LiberationMono-Regular.ttf", 14)
|
font = ImageFont.truetype("LiberationMono-Regular.ttf", 14)
|
||||||
image = Image.new("RGB", (width, height), (255,255,255))
|
image = Image.new("RGB", (width, height), (255,255,255))
|
||||||
draw = ImageDraw.Draw(image)
|
draw = ImageDraw.Draw(image)
|
||||||
draw.text((0,0), image_ascii, (0,0,0), font=font, spacing=0)
|
draw.text((0,0), image_ascii, (0,0,0), font=font, spacing=0)
|
||||||
return image
|
return image
|
||||||
|
|
||||||
|
|
||||||
def handle_gif(output, reverse=False):
|
def handle_gif(output, reverse=False):
|
||||||
image = open_image(args.imagePath)
|
image = open_image(args.imagePath)
|
||||||
ascii_seq = []
|
ascii_seq = []
|
||||||
new_image = ascii_to_image(image_to_ascii(image, reverse))
|
new_image = ascii_to_image(image_to_ascii(image, reverse))
|
||||||
image.seek(1)
|
image.seek(1)
|
||||||
while True:
|
while True:
|
||||||
try:
|
try:
|
||||||
im = ascii_to_image(image_to_ascii(image, reverse))
|
im = ascii_to_image(image_to_ascii(image, reverse))
|
||||||
ascii_seq.append(im)
|
ascii_seq.append(im)
|
||||||
image.seek(image.tell()+1)
|
image.seek(image.tell()+1)
|
||||||
except EOFError:
|
except EOFError:
|
||||||
break # end of sequence
|
break # end of sequence
|
||||||
|
|
||||||
#new_image.save(output, save_all=True, append_images=ascii_seq,
|
#new_image.save(output, save_all=True, append_images=ascii_seq,
|
||||||
# duration=60, loop=0, optimize=True)
|
# duration=60, loop=0, optimize=True)
|
||||||
ascii_seq = [new_image] + ascii_seq
|
ascii_seq = [new_image] + ascii_seq
|
||||||
np_ascii_seq = [np.array(im) for im in ascii_seq]
|
np_ascii_seq = [np.array(im) for im in ascii_seq]
|
||||||
#images2gif.writeGif(output, ascii_seq, nq=10, subRectangles=False)
|
#images2gif.writeGif(output, ascii_seq, nq=10, subRectangles=False)
|
||||||
#imageio.mimsave(output, np_ascii_seq)
|
#imageio.mimsave(output, np_ascii_seq)
|
||||||
with open(output, "wb") as file:
|
with open(output, "wb") as file:
|
||||||
numpngw.write_apng(file, np_ascii_seq)
|
numpngw.write_apng(file, np_ascii_seq)
|
||||||
|
|
||||||
|
|
||||||
if __name__=='__main__':
|
if __name__=='__main__':
|
||||||
import argparse
|
import argparse
|
||||||
|
|
||||||
parser = argparse.ArgumentParser(
|
parser = argparse.ArgumentParser(
|
||||||
description="Converts an image file to ascii art.")
|
description="Converts an image file to ascii art.")
|
||||||
parser.add_argument(
|
parser.add_argument(
|
||||||
"imagePath",
|
"imagePath",
|
||||||
help="The full path to the image file.")
|
help="The full path to the image file.")
|
||||||
parser.add_argument(
|
parser.add_argument(
|
||||||
"-r",
|
"-r",
|
||||||
"--reverse",
|
"--reverse",
|
||||||
action="store_true",
|
action="store_true",
|
||||||
help="Reverses the ascii scale.")
|
help="Reverses the ascii scale.")
|
||||||
parser.add_argument(
|
parser.add_argument(
|
||||||
"-o",
|
"-o",
|
||||||
"--output",
|
"--output",
|
||||||
help="Outputs the ascii art into a file at the specified path.")
|
help="Outputs the ascii art into a file at the specified path.")
|
||||||
parser.add_argument(
|
parser.add_argument(
|
||||||
"-i",
|
"-i",
|
||||||
"--image",
|
"--image",
|
||||||
action="store_true",
|
action="store_true",
|
||||||
help="Outputs the ascii art as an image rather than plain text. \
|
help="Outputs the ascii art as an image rather than plain text. \
|
||||||
Requires --output.")
|
Requires --output.")
|
||||||
parser.add_argument(
|
parser.add_argument(
|
||||||
"-a",
|
"-a",
|
||||||
"--animated",
|
"--animated",
|
||||||
action="store_true",
|
action="store_true",
|
||||||
help="Handles animated GIFs. Includes --image.")
|
help="Handles animated GIFs. Includes --image.")
|
||||||
parser.set_defaults(reverse=False, image=False, animated=False)
|
parser.set_defaults(reverse=False, image=False, animated=False)
|
||||||
args = parser.parse_args()
|
args = parser.parse_args()
|
||||||
|
|
||||||
if args.animated: # --animated includes --image
|
if args.animated: # --animated includes --image
|
||||||
args.image = True
|
args.image = True
|
||||||
if args.image: # --image requires --output
|
if args.image: # --image requires --output
|
||||||
if not args.output:
|
if not args.output:
|
||||||
parser.error("--image requires --output")
|
parser.error("--image requires --output")
|
||||||
|
|
||||||
if args.animated:
|
if args.animated:
|
||||||
handle_gif(args.output, args.reverse)
|
handle_gif(args.output, args.reverse)
|
||||||
else:
|
else:
|
||||||
image = open_image(args.imagePath)
|
image = open_image(args.imagePath)
|
||||||
image_ascii = image_to_ascii(image, args.reverse)
|
image_ascii = image_to_ascii(image, args.reverse)
|
||||||
if args.image:
|
if args.image:
|
||||||
image = ascii_to_image(image_ascii)
|
image = ascii_to_image(image_ascii)
|
||||||
image.save(args.output, "PNG")
|
image.save(args.output, "PNG")
|
||||||
elif args.output:
|
elif args.output:
|
||||||
with open(args.output, "w+") as file:
|
with open(args.output, "w+") as file:
|
||||||
file.write(image_ascii)
|
file.write(image_ascii)
|
||||||
else:
|
else:
|
||||||
print(image_ascii)
|
print(image_ascii)
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue
Block a user