使用python制作一个压缩图片小程序
作者:hbqjzx
这篇文章主要为大家详细介绍了如何使用python制作一个压缩图片小程序,文中的示例代码简洁易懂,具有一定的学习价值,感兴趣的小伙伴可以了解下
学生正在学习图像的编码与压缩,记录一下这个python小程序,给他们提供一下帮助。需要用到PIL库,记得安装:
pip install pillow
完整代码
import tkinter as tk from tkinter import filedialog from PIL import Image import tkinter.messagebox as messagebox class ImageCompressor: def __init__(self, window): self.window = window self.window.title("图片压缩工具By ZYX 2023") self.source_path = tk.StringVar() self.output_path = tk.StringVar() frame1 = tk.Frame(window) frame1.pack(padx=5, pady=5) lbl_source = tk.Label(frame1, text="原始图片路径:") lbl_source.pack(side=tk.LEFT) entry_source = tk.Entry(frame1,textvariable=self.source_path, width=40) entry_source.pack(side=tk.LEFT) btn_source =tk.Button(frame1, text="打开", command=self.open_source_image) btn_source.pack(side=tk.LEFT) frame2 = tk.Frame(window) frame2.pack(padx=5, pady=5) lbl_output = tk.Label(frame2, text="输出图片路径:") lbl_output.pack(side=tk.LEFT) entry_output = tk.Entry(frame2,textvariable=self.output_path, width=40) entry_output.pack(side=tk.LEFT) btn_output =tk.Button(frame2, text="保存", command=self.save_output_image) btn_output.pack(side=tk.LEFT) quality_label = tk.Label(window, text='质量(1-95):') quality_label.pack(pady=5) self.quality_slider = tk.Scale(window, from_=1, to=95, length=400,tickinterval=19, orient='horizontal', resolution=1) self.quality_slider.set(80) self.quality_slider.pack() btn_compress =tk.Button(window, text="开始压缩", command=self.compress_image) btn_compress.pack(pady=10) def open_source_image(self): file_path = filedialog.askopenfilename() self.source_path.set(file_path) def save_output_image(self): file_path = filedialog.asksaveasfilename(defaultextension=".jpg") self.output_path.set(file_path) def compress_image(self): try: img = Image.open(self.source_path.get()) img.save(self.output_path.get(), "JPEG", quality=self.quality_slider.get()) messagebox.showinfo("成功", "图片压缩成功!") except Exception as e: messagebox.showerror("失败", f"压缩过程中发生错误:{e}") if __name__ == '__main__': window = tk.Tk() app = ImageCompressor(window) window.mainloop()
知识补充
除了上文的方法,小编还为大家整理了其他python压缩图片的方法,希望对大家有所帮助
使用PIL库压缩图片大小(按比例压缩)
from PIL import Image infile = 'cxq1.jpg' outfile = 'cxq2.jpg' im = Image.open(infile) (x,y) = im.size #read image size x_s = 1000 #define standard width y_s = int(y * x_s / x) #calc height based on standard width out = im.resize((x_s,y_s)) #resize image with high-quality out.save(outfile) print('original size: ',x,y) print('adjust size: ',x_s,y_s)
Python实现批量压缩图片 无大小限制
# coding=utf-8 # @Time : 2020/6/20 9:39 # @Author : mxz # @File : image_zip.py # @Software: PyCharm import tinify import os tinify.key = '' path = r"" for root, dirs, files in os.walk(path): for file in files: imgpath = os.path.join(root, file) print("compressing ..."+ imgpath) tinify.from_file(imgpath).to_file(imgpath)
python批量压缩照片
# -*- coding: utf-8 -*- """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""" import os import sys from concurrent.futures import ThreadPoolExecutor, ProcessPoolExecutor # 线程池,进程池 import json import random import requests from you_get import common from shutil import copyfile def get_file_dir(file): """获取文件目录通用函数""" fullpath = os.path.abspath(os.path.realpath(file)) return os.path.dirname(fullpath) def check_suffix(file_path): """检查指定文件的后缀是否符合要求""" file_path_lower = file_path.lower() return (file_path_lower.endswith('.png') or file_path_lower.endswith('.jpg') or file_path_lower.endswith('.jpeg')) def download_tinypng(input_file, url, output_file): file_name = os.path.basename(input_file) arr = file_name.split('.') new_file_name = arr[len(arr) - 2] + '_compress' new_output_file = os.path.join(os.path.dirname(output_file), arr[len(arr) - 2] + '_compress.' + arr[len(arr) - 1]) print(u'开始下载文件 :%s' % new_output_file) # print(os.path.splitext(os.path.basename(output_file))[0]) sys.argv = ['you-get', '-o', os.path.dirname( output_file), '-O', new_file_name, url] common.main() old_size = os.path.getsize(input_file) new_size = os.path.getsize(new_output_file) print(u'文件保存地址:%s' % new_output_file) print(u'压缩后文件大小:%d KB' % (new_size / 1024)) print(u'压缩比: %d%%' % ((old_size - new_size) * 100 / old_size)) def compress_by_tinypng(input_file): if not check_suffix(input_file): print(u'只支持png\\jpg\\jepg格式文件:' + input_file) return file_name = os.path.basename(input_file) arr = file_name.split('.') new_file_name = arr[len(arr) - 2] + '_compress.' + arr[len(arr) - 1] output_path = os.path.join(get_file_dir(input_file), 'compress_output') output_file = os.path.join(output_path, new_file_name) if not os.path.isdir(output_path): os.makedirs(output_path) if (os.path.exists(output_file)): print("已存在,跳过压缩") return try: old_size = os.path.getsize(input_file) print(u'压缩前文件名:%s文件大小:%d KB' % (input_file, old_size / 1024)) if (old_size < 1024 * 1024): print("已跳过压缩,并直接拷贝文件") try: copyfile(input_file, output_file) except IOError as e: print("Unable to copy file. %s" % e) return print("开始压缩") shrink_image(input_file) print(u'文件压缩成功:%s' % input_file) # download_thread_pool.submit(download_tinypng, source, input_file, output_file) except Exception as e: print(u'报错了:%s' % e) def check_path(input_path): """如果输入的是文件则直接压缩,如果是文件夹则先遍历""" if os.path.isfile(input_path): compress_by_tinypng(input_path) elif os.path.isdir(input_path): dirlist = os.walk(input_path) for root, dirs, files in dirlist: if (not (root.endswith("\\compress_output") or root.endswith("/compress_output"))): i = 0 for filename in files: i = i + 1 process_pool.submit(compress_by_tinypng, os.path.join( root, filename)) # compress_by_tinypng(os.path.join(root, filename)) else: print(u'目标文件(夹)不存在,请确认后重试。') def list_images(path): images = None try: if path: os.chdir(path) full_path = os.getcwd() files = os.listdir(full_path) images = [] for file in files: ext = os.path.splitext(file)[1].lower() if ext in ('.jpg', '.jpeg', '.png'): images.append(os.path.join(full_path, file)) except: pass return images def shrink_image(file_path): print(u'源文件地址:%s' % file_path) result = shrink(file_path) if result: output_path = generate_output_path(file_path) url = result['output']['url'] print(u'下载地址:%s' % url) download_tinypng(file_path, url, output_path) # download_thread_pool.submit(download_tinypng, file_path, url, output_path) # response = requests.get(url) # with open(output_path, 'wb') as file: # file.write(response.content) # print(u'文件保存地址:%s' % output_path) # print('%s %d=>%d(%f)' % ( # result['input']['type'], # result['input']['size'], # result['output']['size'], # result['output']['ratio'] # )) else: print('压缩失败') def shrink(file_path): url = 'https://tinypng.com/web/shrink' headers = { 'Cache-Control': 'no-cache', 'Content-Type': 'application/x-www-form-urlencoded', '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', 'X-Forwarded-For': get_random_ip() } result = None try: file = open(file_path, 'rb') response = requests.post(url, headers=headers, data=file) result = json.loads(response.text) except Exception as e: print(u'报错了:%s' % e) if file: file.close() if result and result['input'] and result['output']: return result else: return None def generate_output_path(file_path): parent_path = os.path.abspath(os.path.dirname(file_path)) output_path = os.path.join(parent_path, 'compress_output') if not os.path.isdir(output_path): os.mkdir(output_path) return os.path.join(output_path, os.path.basename(file_path)) def get_random_ip(): ip = [] for i in range(4): ip.append(str(random.randint(0 if i in (2, 3) else 1, 254))) return '.'.join(ip) if __name__ == '__main__': thread_pool = ThreadPoolExecutor(5) # 定义5个线程执行此任务 download_thread_pool = ThreadPoolExecutor(10) # 定义5个线程执行此任务 process_pool = ProcessPoolExecutor(8) # 定义5个进程 len_param = len(sys.argv) if len_param != 2 and len_param != 3: print('请使用: %s [filepath]' % os.path.basename(sys.argv[0])) else: check_path(sys.argv[1]) input("Press <enter> 请耐心等待\n")
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