给图片批量添加水印

#coding=utf-8
import Image
import os

#print list[0]
#exit()
def getlogo(x1,y1):
    im =Image.open("./"+"shuiyin.jpg")
    z1=int(x1)
    z2=int(y1)
    in2=im.resize((z1,z2))
    #in2.show()
    return in2
list=os.listdir("./")
for a in list:
    #print a
    if os.path.isdir(a):
        print "is path---------"
        continue
    if a.split('.')[1]=='py':    
        print  "is py---------"
        continue
    path="./get/"
    if not os.path.isdir(path):
        os.mkdir(path)
    if a.split('.')[1]=='jpg':
        im =Image.open("./"+a)
        x=im.size[0]
        y=im.size[1]
    
        x1=int(x*0.9)
        y1=int(y*0.95)
    
        logo=getlogo((x-x1),(y-y1))
        box=(x1,y1,x,y)
        im.paste(logo, box)
        im.save(path+a)
        print "==================="+a

输出

'=================='后面的就是处理过的图片，代码将shuiyin.jpg作为一个水印logo贴到工作文件夹下的每张.jpg照片

效果如图：

===================================================================================================

图片添加文字水印：

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Date    : 2014-11-29 19:09:59
# @Author  : Linsir (vi5i0n@hotmail.com)
# @Link    : http://linsir.org

import Image, ImageEnhance, ImageDraw, ImageFont

def text2img(text, font_color="Blue", font_size=25):
    """生成内容为 TEXT 的水印"""

    font = ImageFont.truetype('Anonymous pro.ttf', font_size)
    #多行文字处理
    text = text.split('\n')#分成两行了Linsir.水印.      vi5i0n@hotmail.com
    mark_width = 0
    for  i in range(len(text)):#循环两次
        (width, height) = font.getsize(text[i])
        if mark_width < width:
            mark_width = width#选两行中最长的一行当水印宽度
    mark_height = height * len(text)#两层文字水印的高度

    #生成水印图片
    mark = Image.new('RGBA', (mark_width,mark_height))
    draw = ImageDraw.ImageDraw(mark, "RGBA")
    draw.setfont(font)
    for i in range(len(text)):
        (width, height) = font.getsize(text[i])
        draw.text((0, i*height), text[i], fill=font_color)#################
    return mark

def set_opacity(im, opacity):
    """设置透明度"""

    assert opacity >=0 and opacity < 1
    if im.mode != "RGBA":
        im = im.convert('RGBA')
    else:
        im = im.copy()
    alpha = im.split()[3]
    alpha = ImageEnhance.Brightness(alpha).enhance(opacity)
    im.putalpha(alpha)
    return im

def watermark(im, mark, position, opacity=1):
    """添加水印"""

    try:
        if opacity < 1:
            mark = set_opacity(mark, opacity)
        if im.mode != 'RGBA':
            im = im.convert('RGBA')
        if im.size[0] < mark.size[0] or im.size[1] < mark.size[1]:
            print "The mark image size is larger size than original image file."
            return False

        #设置水印位置
        if position == 'left_top':
            x = 0
            y = 0
        elif position == 'left_bottom':
            x = 0
            y = im.size[1] - mark.size[1]
        elif position == 'right_top':
            x = im.size[0] - mark.size[0]
            y = 0
        elif position == 'right_bottom':
            x = im.size[0] - mark.size[0]
            y = im.size[1] - mark.size[1]
        else:
            x = (im.size[0] - mark.size[0]) / 2#居中
            y = (im.size[1] - mark.size[1]) / 2

        layer = Image.new('RGBA', im.size,)
        layer.paste(mark,(x,y))
        return Image.composite(layer, im, layer)
    except Exception as e:
        print ">>>>>>>>>>> WaterMark EXCEPTION:  " + str(e)
        return False

def main():
    text = u'Liyabin.\nlybuestc@hotmail.com'
    # text = open('README.md').read().decode('utf-8')
    # print text
    im = Image.open('pic.jpg')
    mark = text2img(text)
    image = watermark(im, mark, 'right_bottom', 0.9)
    if image:
        image.save('pic_shuiyin.png')
        image.show()
        print 'DONE!'
    else:
        print "Sorry, Failed."


if __name__ == '__main__':
    main()

==========================================================================

第 0000 题：将你的 QQ 头像（或者微博头像）右上角加上红色的数字，类似于微信未读信息数量那种提示效果。 类似于图中效果

其中自己的代码因为PIL文件夹添加到搜索库的路径中了，所以直接import Image, ImageDraw, ImageFont就行了