用Python在Excel里画出蒙娜丽莎的方法示例

from PIL import Image
img = Image.open(img_path) # 读取图片
width, height = img.size # 获取图片大小
r, g, b = img.getpixel((w - 1, h - 1)) # 获取像素色彩值

import openpyxl
from openpyxl.styles import fills

workbook = openpyxl.Workbook() 
worksheet = workbook.active
cell.fill = fills.PatternFill(fill_type="solid", fgColor=hex_rgb)
workbook.save(out_file)

def int_to_16(num):
  num1 = hex(num).replace('0x', '')
  num2 = num1 if len(num1) > 1 else '0' + num1 # 位数只有一位的时候在前面补零
  return num2

if h == 1:
 _w = cell.column
 _h = cell.col_idx
 # 调整列宽
 worksheet.column_dimensions[_w].width = 1

# 调整行高
worksheet.row_dimensions[h].height = 6

MAX_WIDTH = 300
MAX_HEIGHT = 300
def resize(img):
  w, h = img.size
  if w > MAX_WIDTH:
    h = MAX_WIDTH / w * h
    w = MAX_WIDTH

  if h > MAX_HEIGHT:
    w = MAX_HEIGHT / h * w
    h = MAX_HEIGHT
  return img.resize((int(w), int(h)), Image.ANTIALIAS)

# draw_excel.py

from PIL import Image
import openpyxl
from openpyxl.styles import fills
import os

MAX_WIDTH = 300
MAX_HEIGHT = 300

def resize(img):
  w, h = img.size
  if w > MAX_WIDTH:
    h = MAX_WIDTH / w * h
    w = MAX_WIDTH

  if h > MAX_HEIGHT:
    w = MAX_HEIGHT / h * w
    h = MAX_HEIGHT
  return img.resize((int(w), int(h)), Image.ANTIALIAS)


def int_to_16(num):
  num1 = hex(num).replace('0x', '')
  num2 = num1 if len(num1) > 1 else '0' + num1
  return num2


def draw_jpg(img_path):

  img_pic = resize(Image.open(img_path))
  img_name = os.path.basename(img_path)
  out_file = './result/' + img_name.split('.')[0] + '.xlsx'
  if os.path.exists(out_file):
    os.remove(out_file)

  workbook = openpyxl.Workbook()
  worksheet = workbook.active

  width, height = img_pic.size

  for w in range(1, width + 1):

    for h in range(1, height + 1):
      if img_pic.mode == 'RGB':
        r, g, b = img_pic.getpixel((w - 1, h - 1))
      elif img_pic.mode == 'RGBA':
        r, g, b, a = img_pic.getpixel((w - 1, h - 1))

      hex_rgb = int_to_16(r) + int_to_16(g) + int_to_16(b)

      cell = worksheet.cell(column=w, row=h)

      if h == 1:
        _w = cell.column
        _h = cell.col_idx
        # 调整列宽
        worksheet.column_dimensions[_w].width = 1
      # 调整行高
      worksheet.row_dimensions[h].height = 6
      
      cell.fill = fills.PatternFill(fill_type="solid", fgColor=hex_rgb)

    print('write in:', w, ' | all:', width + 1)
  print('saving...')
  workbook.save(out_file)
  print('success!')

if __name__ == '__main__':
  draw_jpg('mona-lisa.jpg')

 count = 0
  MAX_WIDTH = 255
  for w in range(1, MAX_WIDTH + 1):
    for h in range(1, MAX_WIDTH + 1):
      cell = worksheet.cell(column=w, row=h)
      if h == 1:
        _w = cell.column
        _h = cell.col_idx
        # 调整列宽
        worksheet.column_dimensions[_w].width = 1
      # 调整行高
      worksheet.row_dimensions[h].height = 6
      
      if count < 255 ** 3:
        back = int_to_16(num=count)
        back = '0' * (6 - len(back)) + back
      else:
        back = ''.join([int_to_16(random.randint(0, 255)) for _ in range(3)])
      cell.fill = fills.PatternFill(fill_type="solid", fgColor=back)
      count += 1