PIL处理图片指定以CMYK模式

最新推荐文章于 2024-12-30 19:28:25 发布

原创

最新推荐文章于 2024-12-30 19:28:25 发布 · 2k 阅读

2 ·

CC 4.0 BY-SA版权

把文件夹里，每张尺寸7200*6800的图，按每行72个、每列68个 256*256的图来抠出：

import os
from PIL import Image
import numpy as np

rootdir = r'C:\Users\admin\Desktop\U_data\11/'
savedir = r'C:\Users\admin\Desktop\U_data\22/'
list = os.listdir(rootdir)
j = 0
for i in list:
    print(i)
    img = Image.open(os.path.join(rootdir, i))
    w = np.array(img).shape[0]
    h = np.array(img).shape[1]
    for x_idx in range(w // 100):
        for y_idx in range(h // 100):
            if x_idx * 100 + 256 < w and y_idx * 100 + 256 < h:
                img1 = Image.fromarray(np.array(img)[x_idx * 100:x_idx * 100 + 256, y_idx * 100:y_idx * 100 + 256, :],mode='CMYK')
                img1.save(os.path.join(savedir, "{}_{}_{}".format(str(x_idx), str(y_idx), i)))
                j += 1
                print(j)

原遥感图：