本工具是通过将图片上传到第三方网站tinypng，进行压缩后下载，覆盖本地图片，tinypng是一个强大的图片处理网站，目前最可靠的无损压缩网站。
代码如下：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
import requestsfrom idna import unicodefrom selenium import webdriverimport timeimport osbrowser = webdriver.Firefox(executable_path='/Users/lyf/Library/Google/geckodriver')def tiny_png(url): # browser.get('https://tinypng.com/') upload_file = browser.find_element_by_tag_name("input") try: upload_file.send_keys(url) browser.implicitly_wait(20) a = browser.find_element_by_link_text('download') img_url = a.get_attribute('href') print(img_url) r = requests.get(img_url) with open(url, 'wb') as f: f.write(r.content) browser.refresh() time.sleep(2) except Exception as e: print(e)def is_need_compress(img_path): """ 判断是否需要压缩处理 >10k 进行压缩处理 :param img_path: :return: """ if img_path.endswith('.jpg') or img_path.endswith('.png'): size = os.path.getsize(img_path) / 1024 if size > 10.0: print('文件大小:%sk' % size) return True return Falsedef file_loop(file_path): """ 遍历文件夹 :param file_path: :return: """ files = os.listdir(file_path) for fi in files: fi_d = os.path.join(file_path, fi) if os.path.isdir(fi_d): file_loop(fi_d) else: child_path = os.path.join(file_path, fi_d) print(child_path) if is_need_compress(child_path): tiny_png(child_path)if __name__ == "__main__": file_path = "/Users/lyf/AndroidStudioProjects/fubei/new-fubei-android-2.5-up/app/src/main/assets/www/assets" browser.get('https://tinypng.com/') file_loop(file_path) |
改进版
优化点：
1.遍历完成本地文件夹再去上传网站
2.所有图片压缩完成再去下载
3.启动多线程下载
4.设定时间为加载完网络就去上传文件（非常非常重要，提速N倍）
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
import requestsfrom selenium import webdriverimport timeimport osimport _threadimport threadingfrom selenium.webdriver.support import expected_conditions as ECfrom selenium.webdriver.support.wait import WebDriverWaitfrom selenium.webdriver.common.by import By# browser = webdriver.Firefox(executable_path='/Users/lyf/Library/Google/geckodriver')browser = Noneimage_map = {}compress_list = []def tiny_png(url): """ 打开网站进行图片上传下载 :param url: :return: """ try: upload_file = WebDriverWait(browser, 10).until( EC.presence_of_element_located((By.TAG_NAME, "input")) ) upload_file.send_keys(url) a = WebDriverWait(browser, 20).until( EC.presence_of_element_located((By.LINK_TEXT, "download")) ) img_url = a.get_attribute('href') compress_list.remove(url) print(img_url) image_map[url] = img_url _thread.start_new_thread(sleep, (4,)) print('刷新网页') browser.refresh() time.sleep(2) except Exception as e: print(e.__str__()) browser.execute_script('window.stop()')def sleep(delay): """ 一定的时间后 未加载完网页 只要控件加载出来就可以停止网页加载 :param delay: :return: """ browser.set_page_load_timeout(delay) browser.set_script_timeout(delay)def down_img(file_path, down_url): """ 下载图片覆盖原地址 :param file_path: :param down_url: :return: """ r = requests.get(down_url) with open(file_path, 'wb') as f: f.write(r.content) print('下载完成：%s' % down_url)def is_need_compress(img_path): """ 判断是否需要压缩处理 >10k 进行压缩处理 :param img_path: :return: """ if img_path.endswith('.jpg') or img_path.endswith('.png'): size = os.path.getsize(img_path) / 1024 print(img_path) print('文件大小:%sk' % size) if size > 5000.0: print('*****' * 30) print('这么大的图片搞笑吗') print(img_path) print('*****' * 30) if size > 0.0 and size < 10.0: return True return Falsedef file_loop(file_path, compress_list): """ 遍历文件夹 :param file_path: :return: """ files = os.listdir(file_path) for fi in files: fi_d = os.path.join(file_path, fi) if os.path.isdir(fi_d): file_loop(fi_d, compress_list) else: child_path = os.path.join(file_path, fi_d) if is_need_compress(child_path): compress_list.append(child_path)def down_all(): """ 下载所有的图片 :return: """ thread_list = [] for k, v in image_map.items(): print('key:%s value:%s' % (k, v)) th = threading.Thread(target=down_img, args=(k, v)) th.start() thread_list.append(th) for r in thread_list: r.join()def loop_press(): """ 轮询获取下载地址 :return: """ for url in compress_list: tiny_png(url)def start_browser(): """ 启动浏览器 :return: """ global browser browser = webdriver.Firefox(executable_path='/Users/lyf/Library/Google/geckodriver') _thread.start_new_thread(sleep, (10,)) print('加载网页') try: browser.get('https://tinypng.com/') except: browser.execute_script('window.stop()')if __name__ == "__main__": start_time = time.time() file_path = "/Users/lyf/Desktop/www/assets" # 获取本地所有需要压缩的图片 file_loop(file_path, compress_list) print('符合条件的图片有%s张' % len(compress_list)) start_browser() loop_press() while len(compress_list) > 0: browser.quit() start_browser() loop_press() # 多线程下载拿到所有返回下载的地址 down_all() end = time.time() time_m = end - start_time print("time: " + str(time_m)) browser.quit() |
以上就是python如何实现图片压缩的详细内容，更多关于python 图片压缩的资料请关注服务器之家其它相关文章！
原文链接：https://www.link-nemo.com/u/10025/post/168133
