[已解决]如何让保存到本地的图片大小一样

淡淡凉 · 发表于 2023-8-17 18:59:47

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爬取王者荣耀的图片是保存到本地，图片大小不统一，如何让保存到本地的图片分辨率一样展示同样大小

import requests
from pyquery import PyQuery
from bs4 import BeautifulSoup
import os
from selenium import webdriver
from time import sleep
driver = webdriver.Chrome()
driver.get("https://pvp.qq.com/web201605/herolist.shtml")
sleep(1) # 等待js加载
source = driver.page_source
driver.close()
#html = requests.get("https://pvp.qq.com/web201605/herolist.shtml").content
doc = PyQuery(source)
#print(doc)
items = doc('.herolist > li').items()
href_datas = {}
for item in items:
url = item.find('img').attr('src')
urls = 'https:' + url
name = item.find('a').text()
href = item.find('a').attr('href')
# href_lists.append(href)
href_datas[name] = "https://pvp.qq.com/web201605/" + href
# os.path.exists(path) 判断文件是否存在固定语法
path = f"E:/Pythonfile/王者荣耀英雄图片"
isexists = os.path.exists(path)
if not isexists:
os.makedirs(path)
url_content = requests.get(urls).content
print(f"正在爬取{name}图片中...",urls)
with open("./王者荣耀英雄图片/" + name + '.jpg','wb') as file:
file.write(url_content)
for name,pf_url in href_datas.items():
print(name,pf_url)
driver = webdriver.Chrome()
driver.get(pf_url)
sleep(1) # 等待js加载
pf_html = driver.page_source
driver.close()
# html = requests.get(url).content
doc = PyQuery(pf_html)
pf_items = doc('.pic-pf-list.pic-pf-list3>li').items()
for pf_item in pf_items:
pf_url = pf_item.find('img').attr('src')
pf_urls = 'https:' + pf_url
#print(pf_urls)
pf_name = pf_item.find('p').text()
url_content = requests.get(pf_urls).content
print(f"正在爬取{name}_{pf_name}皮肤图片中...", pf_urls)
# os.path.exists(path) 判断文件是否存在固定语法
pf_path = f"E:/Pythonfile/王者荣耀皮肤图片"
isexists = os.path.exists(pf_path)
if not isexists:
os.makedirs(pf_path)
with open("./王者荣耀皮肤图片/" + name + '_' + pf_name + '.jpg', 'wb') as file:
file.write(url_content)

复制代码

最佳答案

月排行榜 / 总排行榜

学习编程中的Ben

2023-8-18 15:26:52

淡淡凉发表于 2023-8-18 15:16
前面的几张图片可以正常保存，后面的报错了OSError: cannot write mode RGBA as JPEG

这个试试:

import requests
from pyquery import PyQuery
from bs4 import BeautifulSoup
import os
from selenium import webdriver
from time import sleep
from PIL import Image
# 启动浏览器
driver = webdriver.Chrome()
driver.get("https://pvp.qq.com/web201605/herolist.shtml")
sleep(1) # 等待js加载
source = driver.page_source
driver.close()
# 解析英雄列表页面
doc = PyQuery(source)
items = doc('.herolist > li').items()
href_datas = {}
for item in items:
url = item.find('img').attr('src')
urls = 'https:' + url
name = item.find('a').text()
href = item.find('a').attr('href')
href_datas[name] = "https://pvp.qq.com/web201605/" + href
# 遍历英雄，爬取皮肤图片
for name, pf_url in href_datas.items():
print(name, pf_url)
driver = webdriver.Chrome()
driver.get(pf_url)
sleep(1) # 等待js加载
pf_html = driver.page_source
driver.close()
# 解析英雄详情页面
doc = PyQuery(pf_html)
pf_items = doc('.pic-pf-list.pic-pf-list3>li').items()
for pf_item in pf_items:
pf_url = pf_item.find('img').attr('src')
pf_urls = 'https:' + pf_url
pf_name = pf_item.find('p').text()
url_content = requests.get(pf_urls).content
print(f"正在爬取{name}_{pf_name}皮肤图片中...", pf_urls)
# 创建保存路径
pf_path = f"E:/Pythonfile/王者荣耀皮肤图片"
isexists = os.path.exists(pf_path)
if not isexists:
os.makedirs(pf_path)
# 保存图片
with open(f"{pf_path}/{name}_{pf_name}.jpg", 'wb') as file:
file.write(url_content)
# 打开图片并调整大小
img = Image.open(f"{pf_path}/{name}_{pf_name}.jpg")
img = img.convert("RGB") # 转换为RGB模式
img = img.resize((500, 500)) # 设置统一的图片大小，修改为你想要的大小
img.save(f"{pf_path}/{name}_{pf_name}.jpg")

复制代码

跳转到最佳答案楼层

isdkz · 发表于 2023-8-17 19:00:17

在保存到本地的图片上，如果想要它们的分辨率和大小都一样，可以使用PIL库进行处理。以下是修改后的代码：

import requests

from pyquery import PyQuery

from bs4 import BeautifulSoup

import os

from selenium import webdriver

from time import sleep

from PIL import Image

driver = webdriver.Chrome()

driver.get("https://pvp.qq.com/web201605/herolist.shtml")

sleep(1) # 等待js加载

source = driver.page_source

driver.close()

doc = PyQuery(source)

items = doc('.herolist > li').items()

href_datas = {}

for item in items:

url = item.find('img').attr('src')

urls = 'https:' + url

name = item.find('a').text()

href = item.find('a').attr('href')

href_datas[name] = "https://pvp.qq.com/web201605/" + href

path = f"E:/Pythonfile/王者荣耀英雄图片"

isexists = os.path.exists(path)

if not isexists:

      os.makedirs(path)

url_content = requests.get(urls).content

print(f"正在爬取{name}图片中...",urls)

with open("./王者荣耀英雄图片/" + name + '.jpg','wb') as file:

      file.write(url_content)

      # 打开图片

      img = Image.open(file.name)

      # 统一图片大小

      img = img.resize((800, 600))

      # 保存修改后的图片

      img.save(file.name)

for name,pf_url in href_datas.items():

print(name,pf_url)

driver = webdriver.Chrome()

driver.get(pf_url)

sleep(1)  # 等待js加载

pf_html = driver.page_source

driver.close()

doc = PyQuery(pf_html)

pf_items = doc('.pic-pf-list.pic-pf-list3>li').items()

for pf_item in pf_items:

      pf_url = pf_item.find('img').attr('src')

      pf_urls = 'https:' + pf_url

      pf_name = pf_item.find('p').text()

      url_content = requests.get(pf_urls).content

      print(f"正在爬取{name}_{pf_name}皮肤图片中...", pf_urls)

      pf_path = f"E:/Pythonfile/王者荣耀皮肤图片"

      isexists = os.path.exists(pf_path)

      if not isexists:

         os.makedirs(pf_path)

      with open("./王者荣耀皮肤图片/" + name + '_' + pf_name + '.jpg', 'wb') as file:

         file.write(url_content)

         # 打开图片

         img = Image.open(file.name)

         # 统一图片大小

         img = img.resize((800, 600))

         # 保存修改后的图片

         img.save(file.name)

复制代码

在这个修改后的代码中，我们使用了PIL库的Image模块来打开、修改和保存图片。通过调用 resize 方法，我们将图片的大小统一设置为了800x600。这样，保存到本地的图片就会展示出同样的大小。

学习编程中的Ben · 发表于 2023-8-17 19:00:48

要使保存到本地的图片分辨率一样，可以使用PIL库来处理图片。以下是修改后的完整代码：

import requests
from pyquery import PyQuery
from bs4 import BeautifulSoup
import os
from selenium import webdriver
from time import sleep
from PIL import Image
driver = webdriver.Chrome()
driver.get("https://pvp.qq.com/web201605/herolist.shtml")
sleep(1) # 等待js加载
source = driver.page_source
driver.close()
doc = PyQuery(source)
items = doc('.herolist > li').items()
href_datas = {}
for item in items:
url = item.find('img').attr('src')
urls = 'https:' + url
name = item.find('a').text()
href = item.find('a').attr('href')
href_datas[name] = "https://pvp.qq.com/web201605/" + href
path = f"E:/Pythonfile/王者荣耀英雄图片"
isexists = os.path.exists(path)
if not isexists:
os.makedirs(path)
for name, pf_url in href_datas.items():
print(name, pf_url)
driver = webdriver.Chrome()
driver.get(pf_url)
sleep(1) # 等待js加载
pf_html = driver.page_source
driver.close()
doc = PyQuery(pf_html)
pf_items = doc('.pic-pf-list.pic-pf-list3>li').items()
for pf_item in pf_items:
pf_url = pf_item.find('img').attr('src')
pf_urls = 'https:' + pf_url
pf_name = pf_item.find('p').text()
url_content = requests.get(pf_urls).content
print(f"正在爬取{name}_{pf_name}皮肤图片中...", pf_urls)
pf_path = f"E:/Pythonfile/王者荣耀皮肤图片"
isexists = os.path.exists(pf_path)
if not isexists:
os.makedirs(pf_path)
with open("./王者荣耀皮肤图片/" + name + '_' + pf_name + '.jpg', 'wb') as file:
file.write(url_content)
# 打开图片并调整大小
img = Image.open("./王者荣耀皮肤图片/" + name + '_' + pf_name + '.jpg')
img = img.resize((500, 500)) # 设置统一的图片大小，修改为你想要的大小
img.save("./王者荣耀皮肤图片/" + name + '_' + pf_name + '.jpg')

复制代码

在上述代码中，使用了PIL库的Image类来打开图片，并使用resize()方法将图片调整为统一的大小（这里设置为500x500像素）。然后使用save()方法保存修改后的图片。

请确保已经安装了PIL库，可以使用以下命令来安装：
[/code]
pip install pillow
[/code]

希望能帮助到您！如果有任何其他问题，请随时提问。

如果回答对你有帮助，请给我一个最佳答案！

陶远航 · 发表于 2023-8-17 19:00:54

要让保存到本地的图片分辨率相同，你可以在保存图片之前对其进行统一的处理。可以使用第三方库PIL（Python Imaging Library）来实现图片的处理和调整分辨率。

下面是对代码的修改，在保存图片之前添加了调整分辨率的步骤：

import requests
from pyquery import PyQuery
from bs4 import BeautifulSoup
import os
from selenium import webdriver
from PIL import Image
# 省略部分代码...
for name, pf_url in href_datas.items():
print(name, pf_url)
driver = webdriver.Chrome()
driver.get(pf_url)
sleep(1) # 等待js加载
pf_html = driver.page_source
driver.quit()
doc = PyQuery(pf_html)
pf_items = doc('.pic-pf-list.pic-pf-list3>li').items()
for pf_item in pf_items:
pf_url = pf_item.find('img').attr('src')
pf_urls = 'https:' + pf_url
# print(pf_urls)
pf_name = pf_item.find('p').text()
url_content = requests.get(pf_urls).content
print(f"正在爬取{name}_{pf_name}皮肤图片中...", pf_urls)
# 调整分辨率为统一大小
image = Image.open(BytesIO(url_content))
image = image.resize((500, 500)) # 设置统一的图片尺寸，这里假设设置为500x500
url_content = image.tobytes()
# os.path.exists(path) 判断文件是否存在固定语法
pf_path = f"E:/Pythonfile/王者荣耀皮肤图片"
isexists = os.path.exists(pf_path)
if not isexists:
os.makedirs(pf_path)
with open("./王者荣耀皮肤图片/" + name + '_' + pf_name + '.jpg', 'wb') as file:
file.write(url_content)

复制代码

在以上代码中，使用PIL库的Image.open()方法打开图片，并使用resize()方法调整尺寸为统一大小（这里假设设置为500x500），然后将图片转换为字节流，最后保存到本地。

需要注意的是，在使用该代码之前，请确保已经安装了Pillow库（PIL的fork版本）通过pip install pillow进行安装。

希望这能帮到你！如果还有其他问题，请随时提问。
如果问题已经解决，请设置最佳答案

淡淡凉 · 发表于 2023-8-18 14:27:50

isdkz 发表于 2023-8-17 19:00
在保存到本地的图片上，如果想要它们的分辨率和大小都一样，可以使用PIL库进行处理。以下是修改后的代码：
...

import requests
from pyquery import PyQuery
from bs4 import BeautifulSoup
import os
from selenium import webdriver
from time import sleep
from PIL import Image
driver = webdriver.Chrome()
driver.get("https://pvp.qq.com/web201605/herolist.shtml")
sleep(1) # 等待js加载
source = driver.page_source
driver.close()
#html = requests.get("https://pvp.qq.com/web201605/herolist.shtml").content
doc = PyQuery(source)
#print(doc)
items = doc('.herolist > li').items()
href_datas = {}
for item in items:
url = item.find('img').attr('src')
urls = 'https:' + url
name = item.find('a').text()
href = item.find('a').attr('href')
# href_lists.append(href)
href_datas[name] = "https://pvp.qq.com/web201605/" + href
'''
# os.path.exists(path) 判断文件是否存在固定语法
path = f"E:/Pythonfile/王者荣耀英雄图片"
isexists = os.path.exists(path)
if not isexists:
os.makedirs(path)
url_content = requests.get(urls).content
print(f"正在爬取{name}图片中...",urls)
with open("./王者荣耀英雄图片/" + name + '.jpg','wb') as file:
file.write(url_content)
'''
for name,pf_url in href_datas.items():
print(name,pf_url)
driver = webdriver.Chrome()
driver.get(pf_url)
sleep(1) # 等待js加载
pf_html = driver.page_source
driver.close()
# html = requests.get(url).content
doc = PyQuery(pf_html)
pf_items = doc('.pic-pf-list.pic-pf-list3>li').items()
for pf_item in pf_items:
pf_url = pf_item.find('img').attr('src')
pf_urls = 'https:' + pf_url
#print(pf_urls)
pf_name = pf_item.find('p').text()
url_content = requests.get(pf_urls).content
print(f"正在爬取{name}_{pf_name}皮肤图片中...", pf_urls)
# 调整分辨率为统一大小
image = Image.open(BytesIO(url_content))
image = image.resize((500, 500)) # 设置统一的图片尺寸，这里假设设置为500x500
url_content = image.tobytes()
# os.path.exists(path) 判断文件是否存在固定语法
pf_path = f"E:/Pythonfile/王者荣耀皮肤图片"
isexists = os.path.exists(pf_path)
if not isexists:
os.makedirs(pf_path)
with open("./王者荣耀皮肤图片/" + name + '_' + pf_name + '.jpg', 'wb') as file:
file.write(url_content)
# 打开图片
img = Image.open(file.name)
# 统一图片大小
img = img.resize((800, 600))
# 保存修改后的图片
img.save(file.name)

复制代码

D:\python39\python.exe E:/Pythonfile/herolist.py
亚连 https://pvp.qq.com/web201605/herodetail/514.shtml
正在爬取亚连_追忆之刃皮肤图片中... https://game.gtimg.cn/images/yxzj/img201606/heroimg/514/514-smallskin-1.jpg
Traceback (most recent call last):
File "E:\Pythonfile\herolist.py", line 76, in <module>
img = Image.open(file.name)
File "D:\python39\lib\site-packages\PIL\Image.py", line 3023, in open
raise UnidentifiedImageError(
PIL.UnidentifiedImageError: cannot identify image file './王者荣耀皮肤图片/亚连_追忆之刃.jpg'

报错了

淡淡凉 · 发表于 2023-8-18 15:16:47

学习编程中的Ben 发表于 2023-8-17 19:00
要使保存到本地的图片分辨率一样，可以使用PIL库来处理图片。以下是修改后的完整代码：

import requests
from pyquery import PyQuery
from bs4 import BeautifulSoup
import os
from selenium import webdriver
from time import sleep
from PIL import Image
driver = webdriver.Chrome()
driver.get("https://pvp.qq.com/web201605/herolist.shtml")
sleep(1) # 等待js加载
source = driver.page_source
driver.close()
#html = requests.get("https://pvp.qq.com/web201605/herolist.shtml").content
doc = PyQuery(source)
#print(doc)
items = doc('.herolist > li').items()
href_datas = {}
for item in items:
url = item.find('img').attr('src')
urls = 'https:' + url
name = item.find('a').text()
href = item.find('a').attr('href')
# href_lists.append(href)
href_datas[name] = "https://pvp.qq.com/web201605/" + href
'''
# os.path.exists(path) 判断文件是否存在固定语法
path = f"E:/Pythonfile/王者荣耀英雄图片"
isexists = os.path.exists(path)
if not isexists:
os.makedirs(path)
url_content = requests.get(urls).content
print(f"正在爬取{name}图片中...",urls)
with open("./王者荣耀英雄图片/" + name + '.jpg','wb') as file:
file.write(url_content)
'''
for name,pf_url in href_datas.items():
print(name,pf_url)
driver = webdriver.Chrome()
driver.get(pf_url)
sleep(1) # 等待js加载
pf_html = driver.page_source
driver.close()
# html = requests.get(url).content
doc = PyQuery(pf_html)
pf_items = doc('.pic-pf-list.pic-pf-list3>li').items()
for pf_item in pf_items:
pf_url = pf_item.find('img').attr('src')
pf_urls = 'https:' + pf_url
#print(pf_urls)
pf_name = pf_item.find('p').text()
url_content = requests.get(pf_urls).content
print(f"正在爬取{name}_{pf_name}皮肤图片中...", pf_urls)
# os.path.exists(path) 判断文件是否存在固定语法
pf_path = f"E:/Pythonfile/王者荣耀皮肤图片"
isexists = os.path.exists(pf_path)
if not isexists:
os.makedirs(pf_path)
with open("./王者荣耀皮肤图片/" + name + '_' + pf_name + '.jpg', 'wb') as file:
file.write(url_content)
# 打开图片并调整大小
img = Image.open(f"{pf_path}/" + name + '_' + pf_name + '.jpg')
img = img.resize((500, 500)) # 设置统一的图片大小，修改为你想要的大小
img.save(f"{pf_path}/" + name + '_' + pf_name + '.jpg')

复制代码

D:\python39\python.exe E:/Pythonfile/herolist.py
亚连 https://pvp.qq.com/web201605/herodetail/514.shtml
正在爬取亚连_追忆之刃皮肤图片中... https://game.gtimg.cn/images/yxzj/img201606/heroimg/514/514-smallskin-1.jpg
姬小满 https://pvp.qq.com/web201605/herodetail/564.shtml
正在爬取姬小满_武道奇才皮肤图片中... https://game.gtimg.cn/images/yxzj/img201606/heroimg/564/564-smallskin-1.jpg
正在爬取姬小满_零食大作战皮肤图片中... https://game.gtimg.cn/images/yxzj/img201606/heroimg/564/564-smallskin-2.jpg
Traceback (most recent call last):
  File "D:\python39\lib\site-packages\PIL\JpegImagePlugin.py", line 639, in _save
rawmode = RAWMODE[im.mode]
KeyError: 'RGBA'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "E:\Pythonfile\herolist.py", line 78, in <module>
img = Image.open(f"{pf_path}/" + name + '_' + pf_name + '.jpg')
  File "D:\python39\lib\site-packages\PIL\Image.py", line 2413, in save
save_handler(self, fp, filename)
  File "D:\python39\lib\site-packages\PIL\JpegImagePlugin.py", line 642, in _save
raise OSError(msg) from e
OSError: cannot write mode RGBA as JPEG

前面的几张图片可以正常保存，后面的报错了OSError: cannot write mode RGBA as JPEG

学习编程中的Ben · 发表于 2023-8-18 15:26:52

这个最佳答案由学习编程中的Ben 给出，感谢学习编程中的Ben 的回答。

单击隐藏图章

淡淡凉发表于 2023-8-18 15:16
前面的几张图片可以正常保存，后面的报错了OSError: cannot write mode RGBA as JPEG

这个试试:

import requests
from pyquery import PyQuery
from bs4 import BeautifulSoup
import os
from selenium import webdriver
from time import sleep
from PIL import Image
# 启动浏览器
driver = webdriver.Chrome()
driver.get("https://pvp.qq.com/web201605/herolist.shtml")
sleep(1) # 等待js加载
source = driver.page_source
driver.close()
# 解析英雄列表页面
doc = PyQuery(source)
items = doc('.herolist > li').items()
href_datas = {}
for item in items:
url = item.find('img').attr('src')
urls = 'https:' + url
name = item.find('a').text()
href = item.find('a').attr('href')
href_datas[name] = "https://pvp.qq.com/web201605/" + href
# 遍历英雄，爬取皮肤图片
for name, pf_url in href_datas.items():
print(name, pf_url)
driver = webdriver.Chrome()
driver.get(pf_url)
sleep(1) # 等待js加载
pf_html = driver.page_source
driver.close()
# 解析英雄详情页面
doc = PyQuery(pf_html)
pf_items = doc('.pic-pf-list.pic-pf-list3>li').items()
for pf_item in pf_items:
pf_url = pf_item.find('img').attr('src')
pf_urls = 'https:' + pf_url
pf_name = pf_item.find('p').text()
url_content = requests.get(pf_urls).content
print(f"正在爬取{name}_{pf_name}皮肤图片中...", pf_urls)
# 创建保存路径
pf_path = f"E:/Pythonfile/王者荣耀皮肤图片"
isexists = os.path.exists(pf_path)
if not isexists:
os.makedirs(pf_path)
# 保存图片
with open(f"{pf_path}/{name}_{pf_name}.jpg", 'wb') as file:
file.write(url_content)
# 打开图片并调整大小
img = Image.open(f"{pf_path}/{name}_{pf_name}.jpg")
img = img.convert("RGB") # 转换为RGB模式
img = img.resize((500, 500)) # 设置统一的图片大小，修改为你想要的大小
img.save(f"{pf_path}/{name}_{pf_name}.jpg")

复制代码

淡淡凉 · 发表于 2023-8-18 16:59:10

淡淡凉发表于 2023-8-18 15:16
前面的几张图片可以正常保存，后面的报错了OSError: cannot write mode RGBA as JPEG

百度了一下，用convert方法把RGBA转化成RGB就可以了
# 打开图片并调整大小
img = Image.open(f"{pf_path}/" + name + '_' + pf_name + '.jpg')
img = img.convert('RGB')
img = img.resize((500, 500)) # 设置统一的图片大小，修改为你想要的大小
img.save(f"{pf_path}/" + name + '_' + pf_name + '.jpg')

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[已解决]如何让保存到本地的图片大小一样

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