Question

我有几个叮咬我想画到imagea。问题是我希望每个字符串都显示在每个图像的中间。我该怎么做？或者如何知道字符串的长度（以字母为单位）？感谢

Answer 1

PIL字体有一个getize方法可以用来获取字体的宽度和高度，你试过吗？ e.g。

from PIL import Image, ImageDraw, ImageFont

fontFile = "/usr/share/fonts/truetype/freefont/FreeSansBold.ttf"
font = ImageFont.truetype(fontFile, 10)
text="anurag"
print font.getsize(text)
assert font.getsize(text)[0]*2 == font.getsize(text*2)[0]

Answer 2

您可以在http://tools.jedutils.com/tools/center-text-image

找到此实现

您可以使用该页面在那里创建图像，而不是自己实现例程，但代码也包含在页面中。

遵循妮可的建议

from PIL import Image, ImageDraw, ImageFont, ImageFilter
import StringIO

filter_dict = {
    'BLUR' : ImageFilter.BLUR,
    'CONTOUR' : ImageFilter.CONTOUR,
    'DETAIL' : ImageFilter.DETAIL,
    'EDGE_ENHANCE' : ImageFilter.EDGE_ENHANCE,
    'EDGE_ENHANCE_MORE' : ImageFilter.EDGE_ENHANCE_MORE,
    'EMBOSS' : ImageFilter.EMBOSS,
    'FIND_EDGES' : ImageFilter.FIND_EDGES,
    'SMOOTH' : ImageFilter.SMOOTH,
    'SMOOTH_MORE' : ImageFilter.SMOOTH_MORE,
    'SHARPEN' : ImageFilter.SHARPEN
}

def get_font_full_path(font_path,font_name):
    ext = '.TTF' if font_name.upper() == font_name else ".ttf"
    return font_path + font_name + ext

def create_image(font_name, font_size, font_color, width, height, back_ground_color, text, img_type="JPEG", image_filter=None):
    font_full_path = get_font_full_path(font_path,font_name)
    font  =  ImageFont.truetype ( font_full_path, font_size )

    im  =  Image.new ( "RGB", (width,height), back_ground_color )
    draw  =  ImageDraw.Draw ( im )
    text_x, text_y = font.getsize(text)
    x = (width - text_x)/2
    y = (height - text_y)/2
    draw.text ( (x,y), text, font=font, fill=font_color )

    if image_filter:
        real_filter = filter_dict[image_filter]
        im = im.filter(real_filter)
    im.save ( "sample.jpg", format=img_type )

`

使用PIL将文本绘制到图像的中心

2 个答案: