Generating Chinese "Fu" Characters with Python and PIL

The article introduces a Python-based method for automatically generating Chinese "Fu" characters, inspired by the popularity of the Alipay "Collect Five Blessings" activity, and encourages readers to create their own images using code.

Step 1: Import required libraries

import io<br/>from PIL import Image<br/>import requests

Step 2: Define a function to fetch a single character image

def get_word(ch, quality):<br/>    fp = io.BytesIO(requests.post(url='http://xufive.sdysit.com/tk', data={'ch':ch}).content)<br/>    im = Image.open(fp)<br/>    w, h = im.size<br/>    if quality == 'M':<br/>        w, h = int(w*0.75), int(0.75*h)<br/>    elif quality == 'L':<br/>        w, h = int(w*0.5), int(0.5*h)<br/>    return im.resize((w,h))

Step 3: Define a helper to obtain the background image

def get_bg(quality):<br/>    return get_word('bg', quality)

Step 4: Create the main function that assembles the couplet

def write_couplets(text, HorV='V', quality='L', out_file=None):<br/>    usize = {'H':(640,23), 'M':(480,18), 'L':(320,12)}<br/>    bg_im = get_bg(quality)<br/>    text_list = [list(item) for item in text.split()]<br/>    rows = len(text_list)<br/>    cols = max([len(item) for item in text_list])<br/>    if HorV == 'V':<br/>        ow, oh = 40+rows*usize[quality][0]+(rows-1)*10, 40+cols*usize[quality][0]<br/>    else:<br/>        ow, oh = 40+cols*usize[quality][0], 40+rows*usize[quality][0]+(rows-1)*10<br/>    out_im = Image.new('RGBA', (ow, oh), '#f0f0f0')<br/>    for row in range(rows):<br/>        if HorV == 'V':<br/>            row_im = Image.new('RGBA', (usize[quality][0], cols*usize[quality][0]), 'white')<br/>            offset = (ow-(usize[quality][0]+10)*(row+1)-10, 20)<br/>        else:<br/>            row_im = Image.new('RGBA', (cols*usize[quality][0], usize[quality][0]), 'white')<br/>            offset = (20, 20+(usize[quality][0]+10)*row)<br/>        for col, ch in enumerate(text_list[row]):<br/>            if HorV == 'V':<br/>                pos = (0, col*usize[quality][0])<br/>            else:<br/>                pos = (col*usize[quality][0], 0)<br/>            ch_im = get_word(ch, quality)<br/>            row_im.paste(bg_im, pos)<br/>            row_im.paste(ch_im, (pos[0]+usize[quality][1], pos[1]+usize[quality][1]), mask=ch_im)<br/>        out_im.paste(row_im, offset)<br/>    if out_file:<br/>        out_im.convert('RGB').save(out_file)<br/>    out_im.show()

Step 5: Full script example

import io<br/>from PIL import Image<br/>import requests<br/>def get_word(ch, quality):<br/>    fp = io.BytesIO(requests.post(url='http://xufive.sdysit.com/tk', data={'ch':ch}).content)<br/>    im = Image.open(fp)<br/>    w, h = im.size<br/>    if quality == 'M':<br/>        w, h = int(w*0.75), int(0.75*h)<br/>    elif quality == 'L':<br/>        w, h = int(w*0.5), int(0.5*h)<br/>    return im.resize((w,h))<br/>def get_bg(quality):<br/>    return get_word('bg', quality)<br/>def write_couplets(text, HorV='V', quality='L', out_file=None):<br/>    usize = {'H':(640,23), 'M':(480,18), 'L':(320,12)}<br/>    bg_im = get_bg(quality)<br/>    text_list = [list(item) for item in text.split()]<br/>    rows = len(text_list)<br/>    cols = max([len(item) for item in text_list])<br/>    if HorV == 'V':<br/>        ow, oh = 40+rows*usize[quality][0]+(rows-1)*10, 40+cols*usize[quality][0]<br/>    else:<br/>        ow, oh = 40+cols*usize[quality][0], 40+rows*usize[quality][0]+(rows-1)*10<br/>    out_im = Image.new('RGBA', (ow, oh), '#f0f0f0')<br/>    for row in range(rows):<br/>        if HorV == 'V':<br/>            row_im = Image.new('RGBA', (usize[quality][0], cols*usize[quality][0]), 'white')<br/>            offset = (ow-(usize[quality][0]+10)*(row+1)-10, 20)<br/>        else:<br/>            row_im = Image.new('RGBA', (cols*usize[quality][0], usize[quality][0]), 'white')<br/>            offset = (20, 20+(usize[quality][0]+10)*row)<br/>        for col, ch in enumerate(text_list[row]):<br/>            if HorV == 'V':<br/>                pos = (0, col*usize[quality][0])<br/>            else:<br/>                pos = (col*usize[quality][0], 0)<br/>            ch_im = get_word(ch, quality)<br/>            row_im.paste(bg_im, pos)<br/>            row_im.paste(ch_im, (pos[0]+usize[quality][1], pos[1]+usize[quality][1]), mask=ch_im)<br/>        out_im.paste(row_im, offset)<br/>    if out_file:<br/>        out_im.convert('RGB').save(out_file)<br/>    out_im.show()<br/>text = '福'<br/>write_couplets(text, HorV='V', quality='M', out_file='福.jpg')

The article concludes with encouragement for continuous learning, a reminder that difficulties are normal, and an invitation to join a Python learning community for further discussion and resource sharing.