import PIL
import PIL.Image
import PIL.ImageFont
import PIL.ImageOps
import PIL.ImageDraw
PIXEL_ON = 0 # PIL color to use for "on"
PIXEL_OFF = 255 # PIL color to use for "off"
def main():
image = text_image('content.txt')
image.show()
image.save('content.png')
def text_image(text_path, font_path=None):
"""Convert text file to a grayscale image with black characters on a white background.
arguments:
text_path - the content of this file will be converted to an image
font_path - path to a font file (for example impact.ttf)
"""
grayscale = 'L'
# parse the file into lines
with open(text_path) as text_file: # can throw FileNotFoundError
lines = tuple(l.rstrip() for l in text_file.readlines())
# choose a font (you can see more detail in my library on github)
large_font = 20 # get better resolution with larger size
font_path = font_path or 'cour.ttf' # Courier New. works in windows. linux may need more explicit path
try:
font = PIL.ImageFont.truetype(font_path, size=large_font)
except IOError:
font = PIL.ImageFont.load_default()
print('Could not use chosen font. Using default.')
# make the background image based on the combination of font and lines
pt2px = lambda pt: int(round(pt * 96.0 / 72)) # convert points to pixels
max_width_line = max(lines, key=lambda s: font.getsize(s)[0])
# max height is adjusted down because it's too large visually for spacing
test_string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
max_height = pt2px(font.getsize(test_string)[1])
max_width = pt2px(font.getsize(max_width_line)[0])
height = max_height * len(lines) # perfect or a little oversized
width = int(round(max_width + 40)) # a little oversized
image = PIL.Image.new(grayscale, (width, height), color=PIXEL_OFF)
draw = PIL.ImageDraw.Draw(image)
# draw each line of text
vertical_position = 5
horizontal_position = 5
line_spacing = int(round(max_height * 0.8)) # reduced spacing seems better
for line in lines:
draw.text((horizontal_position, vertical_position),
line, fill=PIXEL_ON, font=font)
vertical_position += line_spacing
# crop the text
c_box = PIL.ImageOps.invert(image).getbbox()
image = image.crop(c_box)
return image
if __name__ == '__main__':
main()
import ImageFont, ImageDraw
draw = ImageDraw.Draw(image)
# use a bitmap font
font = ImageFont.load("arial.pil")
draw.text((10, 10), "hello", font=font)
# use a truetype font
font = ImageFont.truetype("arial.ttf", 15)
draw.text((10, 25), "world", font=font)
如果我理解正确,你需要一个图像,看起来像是有人采取了一个ascii艺术的屏幕截图,因为它将在一个巨大的无限文本编辑器。
我做了一些类似的事情,用枕头编程生成文本。这是一个由我的this代码修改的示例。希望这段代码能帮助您和其他人避免我为了弄清楚如何使事情看起来合理而不得不做的手脚。
下面是由下面的代码生成的一个示例结果。
代码是对链接库的直接修改,以便使用文本文件而不是字符串。
顺便说一句,所有的代码可能不应该被塞进一个函数中,但我认为这会使它更简单,例如代码。
看看Pillow(文档here)
从上述链接的文档中:
相关问题 更多 >
编程相关推荐