python Pillow图像处理方法汇总

#!/usr/bin/env python3# _*_ coding utf-8 _*___author__ = 'nxz'from PIL import Image, ImageFilterfrom time import sleep# 打开一个jpg图像文件im = Image.open('test.jpg')w, h = im.size #print('图片的宽:%s,和高:%s' % (w, h))# 图片缩放im.thumbnail((w // 2, h // 2))w, h = im.sizeprint(w, h)# 缩放之后的图片重新保存im.save('thumbnail.jpg', 'jpeg')# 其他功能：切片、旋转、滤镜、输出文字、调色板# 模糊效果im2 = im.filter(ImageFilter.BLUR)im2.save('blur.jpg','jpeg')

from PIL import ImageGrabfrom time import sleepm = int(input("请输入想截屏多少次："))n = 1while n <= m:  sleep(0.02)  im = ImageGrab.grab()  local = (r'%s.jpg' % (n))  im.save(local, 'jpeg')  n = n + 1

'''将指定路径下的图片后缀改为 “.jpg” 格式'''from PIL import Imageimport os, sysfor infile in sys.argv[1:]:  f, e = os.path.splitext(infile)  outfile = f + '.jpg'  if infile != outfile:    try:      Image.open(infile).save(outfile)    except Exception as exc:      print(exc)

"""GIf动图"""from PIL import Imageim = Image.open('test.jpg')images = []images.append(Image.open('blur.png'))images.append(Image.open('test.jpg'))im.save('gif.gif', save_all=True, append_image=images, loop=1, duration=1, comment=b'aaaabbb')

#简单的集合变换out = im.resize((128, 128))#旋转图像out = im.transpose(Image.FLIP_LEFT_RIGHT) #翻转out = im.transpose(Image.FLIP_TOP_BOTTOM)out = im.transpose(Image.ROTATE_90)out = im.transpose(Image.ROTATE_180) #旋转180°out = im.transpose(Image.ROTATE_270) #旋转270°