{"id":1084946,"date":"2025-01-08T13:11:44","date_gmt":"2025-01-08T05:11:44","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1084946.html"},"modified":"2025-01-08T13:11:47","modified_gmt":"2025-01-08T05:11:47","slug":"python%e5%a6%82%e4%bd%95%e5%b0%86%e5%9b%be%e7%89%87%e4%bf%9d%e5%ad%98csv%e6%96%87%e4%bb%b6-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1084946.html","title":{"rendered":"python\u5982\u4f55\u5c06\u56fe\u7247\u4fdd\u5b58csv\u6587\u4ef6"},"content":{"rendered":"

\"python\u5982\u4f55\u5c06\u56fe\u7247\u4fdd\u5b58csv\u6587\u4ef6\"<\/p>\n

\u4e3a\u4e86\u5c06\u56fe\u7247\u4fdd\u5b58\u5230CSV\u6587\u4ef6\u4e2d\uff0c\u901a\u5e38\u9700\u8981\u5c06\u56fe\u7247\u6570\u636e\u8f6c\u6362\u4e3a\u6570\u503c\u6216\u5b57\u7b26\u4e32\u5f62\u5f0f\uff0c\u7136\u540e\u5c06\u8fd9\u4e9b\u6570\u636e\u5199\u5165CSV\u6587\u4ef6\u4e2d\u3002\u5c06\u56fe\u7247\u4fdd\u5b58\u5230CSV\u6587\u4ef6\u7684\u6b65\u9aa4\u4e3b\u8981\u5305\u62ec\uff1a\u8bfb\u53d6\u56fe\u7247\u3001\u5c06\u56fe\u7247\u8f6c\u6362\u4e3a\u6570\u503c\u6570\u7ec4\u6216\u5b57\u7b26\u4e32\u3001\u5c06\u8fd9\u4e9b\u6570\u636e\u5199\u5165CSV\u6587\u4ef6<\/strong>\u3002\u4e0b\u9762\u8be6\u7ec6\u4ecb\u7ecd\u5176\u4e2d\u7684\u4e00\u70b9\uff1a\u8bfb\u53d6\u56fe\u7247\u53ef\u4ee5\u4f7f\u7528Python\u5e93\u5982PIL\u6216OpenCV\u6765\u5b9e\u73b0\uff0c\u7136\u540e\u5c06\u5176\u8f6c\u6362\u4e3a\u50cf\u7d20\u503c\u6570\u7ec4<\/strong>\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u8bfb\u53d6\u56fe\u7247\u5e76\u8f6c\u6362\u4e3a\u50cf\u7d20\u503c\u6570\u7ec4<\/h2>\n<\/p>\n

\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u8bfb\u53d6\u56fe\u7247\u5e76\u5c06\u5176\u8f6c\u6362\u4e3a\u50cf\u7d20\u503c\u6570\u7ec4\u3002\u53ef\u4ee5\u4f7f\u7528PIL\uff08Python Imaging Library\uff09\u6216OpenCV\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002PIL\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u56fe\u50cf\u5904\u7406\u5e93\uff0c\u800cOpenCV\u5219\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u8ba1\u7b97\u673a\u89c6\u89c9\u5e93\u3002<\/p>\n<\/p>\n

\u4f7f\u7528PIL\u8bfb\u53d6\u56fe\u7247<\/h3>\n<\/p>\n

from PIL import Image<\/p>\n
import numpy as np<\/p>\n
\u8bfb\u53d6\u56fe\u7247<\/strong><\/h2>\n
img = Image.open('path_to_image.jpg')<\/p>\n
\u5c06\u56fe\u7247\u8f6c\u6362\u4e3a\u7070\u5ea6\u56fe<\/strong><\/h2>\n
img = img.convert('L')<\/p>\n
\u5c06\u56fe\u7247\u8f6c\u6362\u4e3a\u50cf\u7d20\u503c\u6570\u7ec4<\/strong><\/h2>\n
img_array = np.array(img)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528OpenCV\u8bfb\u53d6\u56fe\u7247<\/h3>\n<\/p>\n
import cv2<\/p>\n
import numpy as np<\/p>\n
\u8bfb\u53d6\u56fe\u7247<\/strong><\/h2>\n
img = cv2.imread('path_to_image.jpg', cv2.IMREAD_GRAYSCALE)<\/p>\n
\u5c06\u56fe\u7247\u8f6c\u6362\u4e3a\u50cf\u7d20\u503c\u6570\u7ec4<\/strong><\/h2>\n
img_array = np.array(img)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5206\u522b\u4f7f\u7528PIL\u548cOpenCV\u8bfb\u53d6\u4e86\u4e00\u5f20\u56fe\u7247\uff0c\u5e76\u5c06\u5176\u8f6c\u6362\u4e3a\u7070\u5ea6\u56fe\uff08\u5373\u6bcf\u4e2a\u50cf\u7d20\u503c\u57280\u5230255\u4e4b\u95f4\uff09\u3002\u7136\u540e\uff0c\u6211\u4eec\u5c06\u56fe\u7247\u8f6c\u6362\u4e3aNumPy\u6570\u7ec4\uff0c\u8fd9\u6837\u6211\u4eec\u5c31\u53ef\u4ee5\u65b9\u4fbf\u5730\u5904\u7406\u56fe\u7247\u6570\u636e\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u5c06\u50cf\u7d20\u503c\u6570\u7ec4\u8f6c\u6362\u4e3aCSV\u683c\u5f0f<\/h2>\n<\/p>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u9700\u8981\u5c06\u50cf\u7d20\u503c\u6570\u7ec4\u8f6c\u6362\u4e3aCSV\u683c\u5f0f\uff0c\u5e76\u5c06\u5176\u5199\u5165CSV\u6587\u4ef6\u4e2d\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Python\u7684\u5185\u7f6e\u5e93csv<\/code>\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n<\/p>\n
import csv<\/p>\n
\u5c06\u50cf\u7d20\u503c\u6570\u7ec4\u8f6c\u6362\u4e3aCSV\u683c\u5f0f<\/strong><\/h2>\n
with open('image_data.csv', mode='w', newline='') as file:<\/p>\n
    writer = csv.writer(file)<\/p>\n
    for row in img_array:<\/p>\n
        writer.writerow(row)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u7684CSV\u6587\u4ef6\uff0c\u5e76\u4f7f\u7528csv.writer<\/code>\u5c06\u50cf\u7d20\u503c\u6570\u7ec4\u9010\u884c\u5199\u5165CSV\u6587\u4ef6\u4e2d\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u8bfb\u53d6CSV\u6587\u4ef6\u5e76\u6062\u590d\u56fe\u7247<\/h2>\n<\/p>\n
\u4e3a\u4e86\u9a8c\u8bc1\u6211\u4eec\u662f\u5426\u6210\u529f\u5730\u5c06\u56fe\u7247\u6570\u636e\u4fdd\u5b58\u5230\u4e86CSV\u6587\u4ef6\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u5c1d\u8bd5\u4eceCSV\u6587\u4ef6\u4e2d\u8bfb\u53d6\u6570\u636e\u5e76\u6062\u590d\u56fe\u7247\u3002<\/p>\n<\/p>\n
import csv<\/p>\n
import numpy as np<\/p>\n
from PIL import Image<\/p>\n
\u4eceCSV\u6587\u4ef6\u4e2d\u8bfb\u53d6\u50cf\u7d20\u503c\u6570\u7ec4<\/strong><\/h2>\n
img_array = []<\/p>\n
with open('image_data.csv', mode='r') as file:<\/p>\n
    reader = csv.reader(file)<\/p>\n
    for row in reader:<\/p>\n
        img_array.append([int(pixel) for pixel in row])<\/p>\n
\u5c06\u50cf\u7d20\u503c\u6570\u7ec4\u8f6c\u6362\u4e3aNumPy\u6570\u7ec4<\/strong><\/h2>\n
img_array = np.array(img_array, dtype=np.uint8)<\/p>\n
\u5c06NumPy\u6570\u7ec4\u8f6c\u6362\u4e3a\u56fe\u7247<\/strong><\/h2>\n
img = Image.fromarray(img_array)<\/p>\n
\u663e\u793a\u56fe\u7247<\/strong><\/h2>\n
img.show()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4eceCSV\u6587\u4ef6\u4e2d\u9010\u884c\u8bfb\u53d6\u50cf\u7d20\u503c\u6570\u636e\uff0c\u5e76\u5c06\u5176\u8f6c\u6362\u4e3a\u6574\u6570\u503c\u3002\u7136\u540e\uff0c\u6211\u4eec\u5c06\u8fd9\u4e9b\u6570\u636e\u5b58\u50a8\u5728\u4e00\u4e2a\u5217\u8868\u4e2d\uff0c\u6700\u540e\u5c06\u5176\u8f6c\u6362\u4e3aNumPy\u6570\u7ec4\u3002\u4f7f\u7528PIL\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06NumPy\u6570\u7ec4\u8f6c\u6362\u4e3a\u56fe\u7247\u5e76\u663e\u793a\u51fa\u6765\u3002<\/p>\n<\/p>\n
\u56db\u3001\u5904\u7406\u5f69\u8272\u56fe\u7247<\/h2>\n<\/p>\n
\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5904\u7406\u7684\u662f\u7070\u5ea6\u56fe\u3002\u5982\u679c\u6211\u4eec\u9700\u8981\u5904\u7406\u5f69\u8272\u56fe\u7247\uff0c\u53ef\u4ee5\u5c06\u6bcf\u4e2a\u50cf\u7d20\u7684RGB\u503c\u5b58\u50a8\u5728CSV\u6587\u4ef6\u4e2d\u3002<\/p>\n<\/p>\n
\u4f7f\u7528PIL\u5904\u7406\u5f69\u8272\u56fe\u7247<\/h3>\n<\/p>\n
from PIL import Image<\/p>\n
import numpy as np<\/p>\n
import csv<\/p>\n
\u8bfb\u53d6\u5f69\u8272\u56fe\u7247<\/strong><\/h2>\n
img = Image.open('path_to_image.jpg')<\/p>\n
\u5c06\u56fe\u7247\u8f6c\u6362\u4e3a\u50cf\u7d20\u503c\u6570\u7ec4<\/strong><\/h2>\n
img_array = np.array(img)<\/p>\n
\u5c06\u50cf\u7d20\u503c\u6570\u7ec4\u8f6c\u6362\u4e3aCSV\u683c\u5f0f<\/strong><\/h2>\n
with open('color_image_data.csv', mode='w', newline='') as file:<\/p>\n
    writer = csv.writer(file)<\/p>\n
    for row in img_array:<\/p>\n
        writer.writerow(row.flatten())<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4eceCSV\u6587\u4ef6\u4e2d\u8bfb\u53d6\u5f69\u8272\u56fe\u7247<\/h3>\n<\/p>\n
import csv<\/p>\n
import numpy as np<\/p>\n
from PIL import Image<\/p>\n
\u4eceCSV\u6587\u4ef6\u4e2d\u8bfb\u53d6\u50cf\u7d20\u503c\u6570\u7ec4<\/strong><\/h2>\n
img_array = []<\/p>\n
with open('color_image_data.csv', mode='r') as file:<\/p>\n
    reader = csv.reader(file)<\/p>\n
    for row in reader:<\/p>\n
        img_array.append([int(pixel) for pixel in row])<\/p>\n
\u5c06\u50cf\u7d20\u503c\u6570\u7ec4\u8f6c\u6362\u4e3aNumPy\u6570\u7ec4<\/strong><\/h2>\n
img_array = np.array(img_array, dtype=np.uint8)<\/p>\n
\u6062\u590d\u56fe\u7247\u7684\u5f62\u72b6<\/strong><\/h2>\n
img_array = img_array.reshape((original_height, original_width, 3))<\/p>\n
\u5c06NumPy\u6570\u7ec4\u8f6c\u6362\u4e3a\u56fe\u7247<\/strong><\/h2>\n
img = Image.fromarray(img_array)<\/p>\n
\u663e\u793a\u56fe\u7247<\/strong><\/h2>\n
img.show()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5c06\u5f69\u8272\u56fe\u7247\u7684\u6bcf\u4e2a\u50cf\u7d20\u7684RGB\u503c\u5b58\u50a8\u5728CSV\u6587\u4ef6\u4e2d\uff08\u6bcf\u884c\u5b58\u50a8\u4e00\u4e2a\u50cf\u7d20\u7684\u4e09\u4e2a\u901a\u9053\u503c\uff09\u3002\u4eceCSV\u6587\u4ef6\u4e2d\u8bfb\u53d6\u6570\u636e\u65f6\uff0c\u6211\u4eec\u9700\u8981\u5c06\u8fd9\u4e9b\u6570\u636e\u8f6c\u6362\u4e3a\u6574\u6570\u503c\uff0c\u5e76\u5c06NumPy\u6570\u7ec4\u6062\u590d\u5230\u539f\u59cb\u56fe\u7247\u7684\u5f62\u72b6\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u5176\u4ed6\u56fe\u50cf\u9884\u5904\u7406\u548c\u589e\u5f3a\u65b9\u6cd5<\/h2>\n<\/p>\n
\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u5bf9\u56fe\u50cf\u8fdb\u884c\u9884\u5904\u7406\u548c\u589e\u5f3a\uff0c\u4ee5\u63d0\u9ad8\u56fe\u50cf\u7684\u8d28\u91cf\u548c\u53ef\u7528\u6027\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u5bf9\u56fe\u50cf\u8fdb\u884c\u5c3a\u5bf8\u8c03\u6574\u3001\u65cb\u8f6c\u3001\u88c1\u526a\u3001\u6ee4\u6ce2\u7b49\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
\u5c3a\u5bf8\u8c03\u6574<\/h3>\n<\/p>\n
from PIL import Image<\/p>\n
\u8bfb\u53d6\u56fe\u7247<\/strong><\/h2>\n
img = Image.open('path_to_image.jpg')<\/p>\n
\u8c03\u6574\u56fe\u7247\u5c3a\u5bf8<\/strong><\/h2>\n
img = img.resize((width, height))<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u65cb\u8f6c\u56fe\u7247<\/h3>\n<\/p>\n
from PIL import Image<\/p>\n
\u8bfb\u53d6\u56fe\u7247<\/strong><\/h2>\n
img = Image.open('path_to_image.jpg')<\/p>\n
\u65cb\u8f6c\u56fe\u7247<\/strong><\/h2>\n
img = img.rotate(angle)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u88c1\u526a\u56fe\u7247<\/h3>\n<\/p>\n
from PIL import Image<\/p>\n
\u8bfb\u53d6\u56fe\u7247<\/strong><\/h2>\n
img = Image.open('path_to_image.jpg')<\/p>\n
\u88c1\u526a\u56fe\u7247<\/strong><\/h2>\n
img = img.crop((left, upper, right, lower))<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6ee4\u6ce2\u5904\u7406<\/h3>\n<\/p>\n
from PIL import Image, ImageFilter<\/p>\n
\u8bfb\u53d6\u56fe\u7247<\/strong><\/h2>\n
img = Image.open('path_to_image.jpg')<\/p>\n
\u5e94\u7528\u6ee4\u6ce2\u5668<\/strong><\/h2>\n
img = img.filter(ImageFilter.BLUR)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8fd9\u4e9b\u9884\u5904\u7406\u548c\u589e\u5f3a\u64cd\u4f5c\uff0c\u6211\u4eec\u53ef\u4ee5\u63d0\u9ad8\u56fe\u50cf\u7684\u8d28\u91cf\uff0c\u4f7f\u5176\u66f4\u9002\u5408\u540e\u7eed\u7684\u5206\u6790\u548c\u5904\u7406\u3002<\/p>\n<\/p>\n
\u516d\u3001\u5e94\u7528\u573a\u666f<\/h2>\n<\/p>\n
\u5c06\u56fe\u7247\u6570\u636e\u4fdd\u5b58\u5230CSV\u6587\u4ef6\u4e2d\u5728\u8bb8\u591a\u5e94\u7528\u573a\u666f\u4e2d\u90fd\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
    \n
  1. \u673a\u5668\u5b66\u4e60<\/a>\u548c\u6570\u636e\u6316\u6398<\/strong>\uff1a\u5728\u56fe\u50cf\u5206\u7c7b\u3001\u76ee\u6807\u68c0\u6d4b\u548c\u56fe\u50cf\u5206\u5272\u7b49\u4efb\u52a1\u4e2d\uff0c\u5c06\u56fe\u50cf\u6570\u636e\u4fdd\u5b58\u5230CSV\u6587\u4ef6\u4e2d\u53ef\u4ee5\u65b9\u4fbf\u6570\u636e\u7684\u8bfb\u53d6\u548c\u5904\u7406\u3002<\/li>\n
  2. \u56fe\u50cf\u5904\u7406\u548c\u8ba1\u7b97\u673a\u89c6\u89c9<\/strong>\uff1a\u5728\u56fe\u50cf\u589e\u5f3a\u3001\u56fe\u50cf\u4fee\u590d\u548c\u56fe\u50cf\u8bc6\u522b\u7b49\u4efb\u52a1\u4e2d\uff0c\u5c06\u56fe\u50cf\u6570\u636e\u4fdd\u5b58\u5230CSV\u6587\u4ef6\u4e2d\u53ef\u4ee5\u65b9\u4fbf\u6570\u636e\u7684\u5b58\u50a8\u548c\u7ba1\u7406\u3002<\/li>\n
  3. \u6570\u636e\u5907\u4efd\u548c\u8fc1\u79fb<\/strong>\uff1a\u5728\u6570\u636e\u5907\u4efd\u548c\u8fc1\u79fb\u4efb\u52a1\u4e2d\uff0c\u5c06\u56fe\u50cf\u6570\u636e\u4fdd\u5b58\u5230CSV\u6587\u4ef6\u4e2d\u53ef\u4ee5\u65b9\u4fbf\u6570\u636e\u7684\u4f20\u8f93\u548c\u6062\u590d\u3002<\/li>\n<\/ol>\n
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    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
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