python如何将图片转换为字符图片

#-*- coding: UTF-8 -*- from PIL import Image from PIL import ImageDraw from PIL import ImageFontimport matplotlib.pyplot as pltimport numpy as npimport timedef happyNewYear(srd_img_file_path, dst_img_file_path = None, scale = 2, sample_step = 3): start_time = int(time.time()) #读取图片信息 old_img = Image.open(srd_img_file_path) pix = old_img.load() width = old_img.size[0] height = old_img.size[1] print ("width:%d, height:%d" % (width, height)) #创建新图片 canvas = np.ndarray((height*scale, width*scale, 3), np.uint8) canvas[:, :, :] = 255 new_image = Image.fromarray(canvas) draw = ImageDraw.Draw(new_image) #创建绘制对象 font = ImageFont.truetype("consola.ttf", 10, encoding="unic") char_table = list('happy new year ') # font = ImageFont.truetype('simsun.ttc', 10) # char_table = list(u'新年快乐') #开始绘制 pix_count = 0 table_len = len(char_table) for y in range(height):  for x in range(width):   if x % sample_step == 0 and y % sample_step == 0:    draw.text((x*scale, y*scale), char_table[pix_count % table_len], pix[x, y], font)    pix_count += 1 # 保存 if dst_img_file_path is not None:  new_image.save(dst_img_file_path) print("used time : %d second, pix_count : %d" % ((int(time.time()) - start_time), pix_count)) print(pix_count) new_image.show()happyNewYear("input.jpg", "output.jpg")