如何将输出多次保存为名称中带有递增数字序列（name01、name02 等）的图像文件？

Question

我有一个脚本，每次运行时输出的图像都略有不同。现在我已经尝试使用 for loops 或 range 和 xrange[=16= 多次运行 ] 功能没有成功。我的目标是将图像文件保存 N 次（例如 25 次），并在名称上附加一个递增数字（例如“filename01.png、filename02.png 等，直到 filename025.png）。（请注意，我已经从代码中删除了之前使用上述函数的任何尝试，以免弄乱工作脚本）这是代码：

from math import floor from PIL import Image from random import randint # Read all images bckgnd = Image.open('background2.png').convert('RGBA') orangedot = Image.open('orangedot.png') whiteX = Image.open('whiteX.png') # Width and height of each "tile" w, h = bckgnd.size # Calculate number of tiles for x and y direction by A4 paper size # (21 cm x 29.7 cm), and some resolution like dpi = 300 n_tiles = (floor((21.0 / 2.54 * 300) / w), floor((29.7 / 2.54 * 300) / h)) # Prepare final image of sufficient size final_img = Image.new('RGBA', (n_tiles[0] * w, n_tiles[1] * h), color=(0, 0, 0, 0)) # Iterate all tiles for i_x in range(n_tiles[0]): for i_y in range(n_tiles[1]): # Upper left (x, y) coordinates of current tile x, y = i_x * w, i_y * h # 1st: Paste background to current tile final_img.paste(bckgnd, (x, y), mask=bckgnd) # 2nd: Randomly generate location of orange dot and paste to current tile od_x, od_y = randint(30, 170), randint(0, 100) final_img.paste(orangedot, (x + od_x, y + od_y), mask=orangedot) # 3rd: Paste white X to current tile final_img.paste(whiteX, (x, y), mask=whiteX) # Save and show final image final_img.save('final_img.png') final_img.show()

Answer 1

'enumerate'就好了

for ind_x, i_x in enumerate(range(n_tiles[0])):
    for ind_y, i_y in enumerate(range(n_tiles[1])):

        # Upper left (x, y) coordinates of current tile
        x, y = i_x * w, i_y * h

        # 1st: Paste background to current tile
        final_img.paste(bckgnd, (x, y), mask=bckgnd)

        # 2nd: Randomly generate location of orange dot and paste to current tile
        od_x, od_y = randint(30, 170), randint(0, 100)
        final_img.paste(orangedot, (x + od_x, y + od_y), mask=orangedot)

        # 3rd: Paste white X to current tile
        final_img.paste(whiteX, (x, y), mask=whiteX)

        # save to img file
        final_img.save('final_img' + str(ind_x) + str(ind_y) + '.png')

Answer 2

这可行，您必须输入想要的图像数量，它会将图像保存为 "filename01,filename02...."。只需要 for 循环、计数器 和字符串格式。

from math import floor
from PIL import Image
from random import randint

# Read all images
c=1
times = int(input("How many times to save"))
for i in range(times):
  bckgnd = Image.open('background2.png').convert('RGBA')
  orangedot = Image.open('orangedot.png')
  whiteX = Image.open('whiteX.png')

  # Width and height of each "tile"
  w, h = bckgnd.size

  # Calculate number of tiles for x and y direction by A4 paper size
  # (21 cm x 29.7 cm), and some resolution like dpi = 300
  n_tiles = (floor((21.0 / 2.54 * 300) / w), floor((29.7 / 2.54 * 300) / h))

  # Prepare final image of sufficient size
  final_img = Image.new('RGBA', (n_tiles[0] * w, n_tiles[1] * h), color=(0, 0, 0, 0))

  # Iterate all tiles
  for i_x in range(n_tiles[0]):
      for i_y in range(n_tiles[1]):

          # Upper left (x, y) coordinates of current tile
          x, y = i_x * w, i_y * h

          # 1st: Paste background to current tile
          final_img.paste(bckgnd, (x, y), mask=bckgnd)

          # 2nd: Randomly generate location of orange dot and paste to current tile
          od_x, od_y = randint(30, 170), randint(0, 100)
          final_img.paste(orangedot, (x + od_x, y + od_y), mask=orangedot)

          # 3rd: Paste white X to current tile
          final_img.paste(whiteX, (x, y), mask=whiteX)

  # Save and show final image
  img_name = 'filename0{0}.png'.format(c)
  c+=1
  final_img.save(img_name)

如何将输出多次保存为名称中带有递增数字序列（name01、name02 等）的图像文件？

How to save the output as image file mutliple times with incremental number sequence in the name (name01,name02,etc.)?

python

png

loops

image

save