python 无损压缩照片，支持批量压缩，支持保留照片信息
由于云盘空间有限，照片尺寸也是很大，所以写个Python程序压缩一下照片，腾出一些云盘空间
1、批量压缩照片
新建 photo_compress.py 代码如下
1 # -*- coding: utf-8 -*- 2 3 """脚本功能说明：使用 tinypng api，一键批量压缩指定文件(夹)所有文件""" 4 5 import os 6 import sys 7 from concurrent.futures import ThreadPoolExecutor, ProcessPoolExecutor # 线程池，进程池 8 import json 9 import random 10 import requests 11 from you_get import common 12 from shutil import copyfile 13 14 15 def get_file_dir(file): 16 """获取文件目录通用函数""" 17 fullpath = os.path.abspath(os.path.realpath(file)) 18 return os.path.dirname(fullpath) 19 20 21 def check_suffix(file_path): 22 """检查指定文件的后缀是否符合要求""" 23 file_path_lower = file_path.lower() 24 return (file_path_lower.endswith('.png') 25 or file_path_lower.endswith('.jpg') 26 or file_path_lower.endswith('.jpeg')) 27 28 29 def download_tinypng(input_file, url, output_file): 30 file_name = os.path.basename(input_file) 31 arr = file_name.split('.') 32 new_file_name = arr[len(arr) - 2] + '_compress' 33 new_output_file = os.path.join(os.path.dirname(output_file), arr[len(arr) - 2] + '_compress.' + arr[len(arr) - 1]) 34 print(u'开始下载文件 ：%s' % new_output_file) 35 # print(os.path.splitext(os.path.basename(output_file))[0]) 36 sys.argv = ['you-get', '-o', os.path.dirname( 37 output_file), '-O', new_file_name, url] 38 common.main() 39 old_size = os.path.getsize(input_file) 40 new_size = os.path.getsize(new_output_file) 41 print(u'文件保存地址：%s' % new_output_file) 42 print(u'压缩后文件大小：%d KB' % (new_size / 1024)) 43 print(u'压缩比： %d%%' % ((old_size - new_size) * 100 / old_size)) 44 45 46 def compress_by_tinypng(input_file): 47 if not check_suffix(input_file): 48 print(u'只支持png\\jpg\\jepg格式文件：' + input_file) 49 return 50 51 file_name = os.path.basename(input_file) 52 arr = file_name.split('.') 53 new_file_name = arr[len(arr) - 2] + '_compress.' + arr[len(arr) - 1] 54 output_path = os.path.join(get_file_dir(input_file), 'compress_output') 55 output_file = os.path.join(output_path, new_file_name) 56 if not os.path.isdir(output_path): 57 os.makedirs(output_path) 58 59 if (os.path.exists(output_file)): 60 print("已存在，跳过压缩") 61 return 62 63 try: 64 old_size = os.path.getsize(input_file) 65 print(u'压缩前文件名：%s文件大小：%d KB' % (input_file, old_size / 1024)) 66 if (old_size < 1024 * 1024): 67 print("已跳过压缩，并直接拷贝文件") 68 try: 69 copyfile(input_file, output_file) 70 except IOError as e: 71 print("Unable to copy file. %s" % e) 72 return 73 print("开始压缩") 74 shrink_image(input_file) 75 print(u'文件压缩成功：%s' % input_file) 76 # download_thread_pool.submit(download_tinypng, source, input_file, output_file) 77 except Exception as e: 78 print(u'报错了：%s' % e) 79 80 81 def check_path(input_path): 82 """如果输入的是文件则直接压缩，如果是文件夹则先遍历""" 83 if os.path.isfile(input_path): 84 compress_by_tinypng(input_path) 85 elif os.path.isdir(input_path): 86 dirlist = os.walk(input_path) 87 for root, dirs, files in dirlist: 88 if (not (root.endswith("\\compress_output") or root.endswith("/compress_output"))): 89 i = 0 90 for filename in files: 91 i = i + 1 92 process_pool.submit(compress_by_tinypng, os.path.join( 93 root, filename)) 94 # compress_by_tinypng(os.path.join(root, filename)) 95 else: 96 print(u'目标文件(夹)不存在，请确认后重试。') 97 98 99 def list_images(path): 100 images = None 101 try: 102 if path: 103 os.chdir(path) 104 full_path = os.getcwd() 105 files = os.listdir(full_path) 106 images = [] 107 for file in files: 108 ext = os.path.splitext(file)[1].lower() 109 if ext in ('.jpg', '.jpeg', '.png'): 110 images.append(os.path.join(full_path, file)) 111 except: 112 pass 113 return images 114 115 116 def shrink_image(file_path): 117 print(u'源文件地址：%s' % file_path) 118 result = shrink(file_path) 119 if result: 120 output_path = generate_output_path(file_path) 121 url = result['output']['url'] 122 print(u'下载地址：%s' % url) 123 download_tinypng(file_path, url, output_path) 124 # download_thread_pool.submit(download_tinypng, file_path, url, output_path) 125 # response = requests.get(url) 126 # with open(output_path, 'wb') as file: 127 # file.write(response.content) 128 # print(u'文件保存地址：%s' % output_path) 129 # print('%s %d=>%d(%f)' % ( 130 # result['input']['type'], 131 # result['input']['size'], 132 # result['output']['size'], 133 # result['output']['ratio'] 134 # )) 135 else: 136 print('压缩失败') 137 138 139 def shrink(file_path): 140 url = 'https://tinypng.com/web/shrink' 141 headers = { 142 'Cache-Control': 'no-cache', 143 'Content-Type': 'application/x-www-form-urlencoded', 144 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.83 Safari/537.36 Edg/85.0.564.44', 145 'X-Forwarded-For': get_random_ip() 146 } 147 result = None 148 try: 149 file = open(file_path, 'rb') 150 response = requests.post(url, headers=headers, data=file) 151 result = json.loads(response.text) 152 except Exception as e: 153 print(u'报错了：%s' % e) 154 if file: 155 file.close() 156 if result and result['input'] and result['output']: 157 return result 158 else: 159 return None 160 161 162 def generate_output_path(file_path): 163 parent_path = os.path.abspath(os.path.dirname(file_path)) 164 output_path = os.path.join(parent_path, 'compress_output') 165 if not os.path.isdir(output_path): 166 os.mkdir(output_path) 167 return os.path.join(output_path, os.path.basename(file_path)) 168 169 170 def get_random_ip(): 171 ip = [] 172 for i in range(4): 173 ip.append(str(random.randint(0 if i in (2, 3) else 1, 254))) 174 return '.'.join(ip) 175 176 177 if __name__ == '__main__': 178 thread_pool = ThreadPoolExecutor(5) # 定义5个线程执行此任务 179 download_thread_pool = ThreadPoolExecutor(10) # 定义5个线程执行此任务 180 process_pool = ProcessPoolExecutor(8) # 定义5个进程 181 len_param = len(sys.argv) 182 if len_param != 2 and len_param != 3: 183 print('请使用： %s [filepath]' % os.path.basename(sys.argv[0])) 184 else: 185 check_path(sys.argv[1]) 186 input("Press <enter> 请耐心等待\n")
执行python .\photo_compress.py F:\\test
生成compress_output文件夹，里面就是压缩的文件，但此时的照片没有，拍摄时的时间、位置的信息，所以下面要复制文件信息
若要压缩的文件不全，可以再执行一次压缩（会自动过滤已压缩的照片）
2、批量拷贝照片信息
使用pyexiv2进行文件信息拷贝
pip install pyexiv2 -i https://pypi.tuna.tsinghua.edu.cn/simple
新建 copy_fileinfo.py 代码如下
1 # -*- coding: utf-8 -*- 2 3 """脚本功能说明：使用 pyexiv2 api，一键批量拷贝指定文件(夹)所有文件信息""" 4 5 import os 6 import sys 7 from concurrent.futures import ThreadPoolExecutor, ProcessPoolExecutor # 线程池，进程池 8 from pyexiv2 import Image 9 10 11 def get_file_dir(file): 12 """获取文件目录通用函数""" 13 fullpath = os.path.abspath(os.path.realpath(file)) 14 return os.path.dirname(fullpath) 15 16 17 def check_suffix(file_path): 18 """检查指定文件的后缀是否符合要求""" 19 file_path_lower = file_path.lower() 20 return (file_path_lower.endswith('.png') 21 or file_path_lower.endswith('.jpg') 22 or file_path_lower.endswith('.jpeg')) 23 24 25 def copyinfo_by_pyexiv2(input_file): 26 file_name = os.path.basename(input_file) 27 arr = file_name.split('.') 28 new_file_name = arr[len(arr) - 2] + '_compress.' + arr[len(arr) - 1] 29 output_path = os.path.join(get_file_dir(input_file), 'compress_output') 30 output_file = os.path.join(output_path, new_file_name) 31 if not (check_suffix(input_file) or check_suffix(output_file)): 32 print(u'只支持png\\jpg\\jepg格式文件：' + input_file) 33 return 34 if not (os.path.exists(output_file)): 35 print(u'文件不存在：' + output_file) 36 return 37 old_size = os.path.getsize(input_file) 38 if (old_size < 1024 * 1024): 39 print(u"已跳过拷贝文件信息：", input_file) 40 return 41 42 # if not os.path.isdir(output_path): 43 # os.makedirs(output_path) 44 try: 45 i = Image(input_file) # 源图片路径 46 except Exception: 47 i = Image(input_file, "GB18030") 48 49 try: 50 _exif_info = i.read_exif() 51 except Exception: 52 _exif_info = i.read_exif("GB18030") 53 54 # print(_exif_info) 55 # _iptc_info = i.read_iptc() 56 # print(_iptc_info) 57 # _xmp_info = i.read_xmp() 58 # print(_xmp_info) 59 i.close() 60 61 try: 62 i2 = Image(output_file) # 拷贝信息图片路径 63 except Exception: 64 i2 = Image(output_file, "GB18030") 65 66 try: 67 _exif_info2 = i2.read_exif() 68 except Exception: 69 _exif_info2 = i2.read_exif("GB18030") 70 71 # 方向不拷贝，防止图片旋转 72 for item in _exif_info: 73 if("Exif.Image.Orientation" != item): 74 if (_exif_info2.get(item) != _exif_info.get(item)): 75 try: 76 i2.modify_exif({item: _exif_info[item]}) 77 except Exception as e: 78 print(e) 79 try: 80 i2.modify_exif({item: _exif_info[item]}, "GB18030") 81 except Exception as e: 82 print(e) 83 84 i2.close() 85 86 print(u"拷贝信息完成：" + input_file) 87 88 89 def check_path(input_path): 90 """如果输入的是文件则直接压缩，如果是文件夹则先遍历""" 91 if os.path.isfile(input_path): 92 copyinfo_by_pyexiv2(input_path) 93 elif os.path.isdir(input_path): 94 dirlist = os.walk(input_path) 95 for root, dirs, files in dirlist: 96 if (not (root.endswith("\\compress_output") or root.endswith("/compress_output"))): 97 i = 0 98 for filename in files: 99 i = i + 1 100 process_pool.submit(copyinfo_by_pyexiv2, os.path.join( 101 root, filename)) 102 else: 103 print(u'目标文件(夹)不存在，请确认后重试。') 104 105 106 if __name__ == '__main__': 107 # thread_pool = ThreadPoolExecutor(10) # 定义5个线程执行此任务 108 process_pool = ProcessPoolExecutor(8) # 定义5个进程 109 len_param = len(sys.argv) 110 if len_param != 2: 111 print('请使用： %s [filepath]' % os.path.basename(sys.argv[0])) 112 else: 113 check_path(sys.argv[1]) 114 input("Press <enter> 请耐心等待\n")
执行python .\copy_fileinfo.py F:\\test
大功告成！图片压缩完毕，信息还没有丢失
