Question

I have a few stings I would like to draw to imagea. the thing is that I want each string to be displayed in the middle of each image. how do I do it? or how can I know the length in pixels of a string (giving ofcourse the font)? thanks

Answer 1

PIL font s do have a getsize method which you can use to get width and height of font, did you try that? 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找到其实现。

你可以使用那个页面直接创建图像，而不必自己实现例程，但页面上也包含了代码。

遵循Nicole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 )

Sorry, I cannot translate without context or the original phrase. Please provide more information.

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