{"id":961786,"date":"2024-12-27T04:02:05","date_gmt":"2024-12-26T20:02:05","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/961786.html"},"modified":"2024-12-27T04:02:08","modified_gmt":"2024-12-26T20:02:08","slug":"python%e5%a6%82%e4%bd%95%e8%ae%a9%e5%9b%be%e7%89%87%e9%93%ba%e6%bb%a1","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/961786.html","title":{"rendered":"python\u5982\u4f55\u8ba9\u56fe\u7247\u94fa\u6ee1"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25103858\/305f3010-0147-47fb-b5dc-bb428bb8e4ea.webp\" alt=\"python\u5982\u4f55\u8ba9\u56fe\u7247\u94fa\u6ee1\" \/><\/p>\n<p><p> \u4e00\u3001\u4f7f\u7528Python\u8ba9\u56fe\u7247\u94fa\u6ee1\u7684\u65b9\u6cd5\u6982\u8ff0<\/p>\n<\/p>\n<p><p>\u5728Python\u4e2d\uff0c\u901a\u8fc7\u8c03\u6574\u56fe\u50cf\u5c3a\u5bf8\u4f7f\u5176\u94fa\u6ee1\u7279\u5b9a\u533a\u57df\uff0c\u53ef\u4ee5\u4f7f\u7528<strong>\u8c03\u6574\u56fe\u50cf\u5c3a\u5bf8\u3001\u88c1\u526a\u56fe\u50cf\u3001\u4fdd\u6301\u5bbd\u9ad8\u6bd4<\/strong>\u7b49\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002\u8c03\u6574\u56fe\u50cf\u5c3a\u5bf8\u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u800c\u88c1\u526a\u56fe\u50cf\u53ef\u4ee5\u5e2e\u52a9\u4fdd\u6301\u56fe\u50cf\u4e0d\u5931\u771f\uff0c\u540c\u65f6\u94fa\u6ee1\u76ee\u6807\u533a\u57df\u3002\u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u4f7f\u7528PIL\u5e93\uff08Pillow\u7684\u4e00\u4e2a\u5206\u652f\uff09\u548cOpenCV\u5e93\uff0c\u5b83\u4eec\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u56fe\u50cf\u5904\u7406\u80fd\u529b\u3002\u5728\u6b64\u8fc7\u7a0b\u4e2d\uff0c\u7406\u89e3\u5982\u4f55\u5e73\u8861\u56fe\u50cf\u7684\u5bbd\u9ad8\u6bd4\u548c\u76ee\u6807\u533a\u57df\u7684\u5c3a\u5bf8\u662f\u5173\u952e\u3002<\/p>\n<\/p>\n<p><p>\u8c03\u6574\u56fe\u50cf\u5c3a\u5bf8\u65f6\uff0c\u786e\u4fdd\u76ee\u6807\u533a\u57df\u7684\u5bbd\u9ad8\u6bd4\u4e0e\u539f\u59cb\u56fe\u50cf\u76f8\u7b26\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff0c\u53ef\u4ee5\u5148\u8ba1\u7b97\u51fa\u76ee\u6807\u533a\u57df\u4e0e\u56fe\u50cf\u7684\u5bbd\u9ad8\u6bd4\uff0c\u7136\u540e\u8c03\u6574\u56fe\u50cf\u7684\u5c3a\u5bf8\u4ee5\u9002\u5e94\u76ee\u6807\u533a\u57df\u3002\u88c1\u526a\u56fe\u50cf\u53ef\u4ee5\u5e2e\u52a9\u6d88\u9664\u4e0d\u5fc5\u8981\u7684\u90e8\u5206\uff0c\u4ece\u800c\u4f7f\u56fe\u50cf\u4e0d\u5931\u771f\u5730\u94fa\u6ee1\u76ee\u6807\u533a\u57df\u3002\u901a\u8fc7\u88c1\u526a\u56fe\u50cf\uff0c\u53ef\u4ee5\u53bb\u9664\u591a\u4f59\u7684\u8fb9\u7f18\uff0c\u4f7f\u5f97\u56fe\u50cf\u80fd\u591f\u5b8c\u5168\u586b\u5145\u76ee\u6807\u533a\u57df\u3002<\/p>\n<\/p>\n<p><p>\u4e8c\u3001\u4f7f\u7528PIL\u5e93\u8c03\u6574\u56fe\u50cf\u5c3a\u5bf8<\/p>\n<\/p>\n<p><p>PIL\u5e93\u662fPython\u4e2d\u6700\u5e38\u7528\u7684\u56fe\u50cf\u5904\u7406\u5e93\u4e4b\u4e00\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u56fe\u50cf\u64cd\u4f5c\u529f\u80fd\uff0c\u5305\u62ec\u8c03\u6574\u56fe\u50cf\u5c3a\u5bf8\u3002\u5728\u4f7f\u7528PIL\u5e93\u8c03\u6574\u56fe\u50cf\u5c3a\u5bf8\u65f6\uff0c\u53ef\u4ee5\u9009\u62e9\u4f7f\u7528<code>resize<\/code>\u65b9\u6cd5\u548c<code>thumbn<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>l<\/code>\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<ol>\n<li>\u4f7f\u7528<code>resize<\/code>\u65b9\u6cd5<\/li>\n<\/ol>\n<p><p><code>resize<\/code>\u65b9\u6cd5\u7528\u4e8e\u5c06\u56fe\u50cf\u8c03\u6574\u4e3a\u6307\u5b9a\u7684\u5c3a\u5bf8\u3002\u5728\u8c03\u6574\u56fe\u50cf\u5c3a\u5bf8\u65f6\uff0c\u53ef\u4ee5\u9009\u62e9\u4e0d\u540c\u7684\u7f29\u653e\u6a21\u5f0f\uff0c\u5982<code>NEAREST<\/code>\u3001<code>BILINEAR<\/code>\u3001<code>BICUBIC<\/code>\u3001<code>ANTIALIAS<\/code>\u7b49\uff0c\u4ee5\u83b7\u5f97\u4e0d\u540c\u7684\u56fe\u50cf\u8d28\u91cf\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from PIL import Image<\/p>\n<p>def resize_image(input_path, output_path, size):<\/p>\n<p>    with Image.open(input_path) as img:<\/p>\n<p>        resized_img = img.resize(size, Image.ANTIALIAS)<\/p>\n<p>        resized_img.save(output_path)<\/p>\n<h2><strong>\u793a\u4f8b\u7528\u6cd5<\/strong><\/h2>\n<p>resize_image(&#39;input.jpg&#39;, &#39;output.jpg&#39;, (800, 600))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c<code>resize_image<\/code>\u51fd\u6570\u63a5\u6536\u8f93\u5165\u56fe\u50cf\u8def\u5f84\u3001\u8f93\u51fa\u56fe\u50cf\u8def\u5f84\u548c\u76ee\u6807\u5c3a\u5bf8\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u5c06\u8c03\u6574\u540e\u7684\u56fe\u50cf\u4fdd\u5b58\u5230\u6307\u5b9a\u8def\u5f84\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u4f7f\u7528<code>thumbnail<\/code>\u65b9\u6cd5<\/li>\n<\/ol>\n<p><p><code>thumbnail<\/code>\u65b9\u6cd5\u7528\u4e8e\u4fdd\u6301\u56fe\u50cf\u5bbd\u9ad8\u6bd4\u7684\u540c\u65f6\u8c03\u6574\u56fe\u50cf\u5c3a\u5bf8\uff0c\u4f7f\u5176\u9002\u5e94\u6307\u5b9a\u7684\u5c3a\u5bf8\u3002\u8be5\u65b9\u6cd5\u4f1a\u81ea\u52a8\u8c03\u6574\u56fe\u50cf\u7684\u5927\u5c0f\uff0c\u4ee5\u786e\u4fdd\u5176\u4e0d\u4f1a\u8d85\u8fc7\u76ee\u6807\u5c3a\u5bf8\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from PIL import Image<\/p>\n<p>def thumbnail_image(input_path, output_path, size):<\/p>\n<p>    with Image.open(input_path) as img:<\/p>\n<p>        img.thumbnail(size, Image.ANTIALIAS)<\/p>\n<p>        img.save(output_path)<\/p>\n<h2><strong>\u793a\u4f8b\u7528\u6cd5<\/strong><\/h2>\n<p>thumbnail_image(&#39;input.jpg&#39;, &#39;output.jpg&#39;, (800, 600))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><code>thumbnail_image<\/code>\u51fd\u6570\u901a\u8fc7\u5c06\u56fe\u50cf\u7f29\u653e\u81f3\u4e0d\u8d85\u8fc7\u6307\u5b9a\u5c3a\u5bf8\u7684\u65b9\u6cd5\u6765\u4fdd\u6301\u56fe\u50cf\u7684\u5bbd\u9ad8\u6bd4\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001\u4f7f\u7528OpenCV\u5e93\u88c1\u526a\u56fe\u50cf<\/p>\n<\/p>\n<p><p>OpenCV\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u8ba1\u7b97\u673a\u89c6\u89c9\u5e93\uff0c\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u56fe\u50cf\u5904\u7406\u529f\u80fd\u3002\u88c1\u526a\u56fe\u50cf\u662f\u94fa\u6ee1\u76ee\u6807\u533a\u57df\u7684\u4e00\u79cd\u6709\u6548\u65b9\u6cd5\u3002\u5728\u4f7f\u7528OpenCV\u88c1\u526a\u56fe\u50cf\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528<code>cv2.resize<\/code>\u65b9\u6cd5\u548c<code>cv2.getRectSubPix<\/code>\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<ol>\n<li>\u4f7f\u7528<code>cv2.resize<\/code>\u65b9\u6cd5<\/li>\n<\/ol>\n<p><p><code>cv2.resize<\/code>\u65b9\u6cd5\u7528\u4e8e\u8c03\u6574\u56fe\u50cf\u5c3a\u5bf8\u3002\u5728\u8c03\u6574\u56fe\u50cf\u5c3a\u5bf8\u65f6\uff0c\u53ef\u4ee5\u9009\u62e9\u4e0d\u540c\u7684\u63d2\u503c\u65b9\u6cd5\uff0c\u5982<code>INTER_NEAREST<\/code>\u3001<code>INTER_LINEAR<\/code>\u3001<code>INTER_CUBIC<\/code>\u3001<code>INTER_LANCZOS4<\/code>\u7b49\uff0c\u4ee5\u83b7\u5f97\u4e0d\u540c\u7684\u56fe\u50cf\u8d28\u91cf\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import cv2<\/p>\n<p>def resize_image_cv2(input_path, output_path, size):<\/p>\n<p>    img = cv2.imread(input_path)<\/p>\n<p>    resized_img = cv2.resize(img, size, interpolation=cv2.INTER_AREA)<\/p>\n<p>    cv2.imwrite(output_path, resized_img)<\/p>\n<h2><strong>\u793a\u4f8b\u7528\u6cd5<\/strong><\/h2>\n<p>resize_image_cv2(&#39;input.jpg&#39;, &#39;output.jpg&#39;, (800, 600))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c<code>resize_image_cv2<\/code>\u51fd\u6570\u901a\u8fc7\u8c03\u6574\u56fe\u50cf\u7684\u5c3a\u5bf8\u6765\u94fa\u6ee1\u76ee\u6807\u533a\u57df\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u4f7f\u7528<code>cv2.getRectSubPix<\/code>\u65b9\u6cd5<\/li>\n<\/ol>\n<p><p><code>cv2.getRectSubPix<\/code>\u65b9\u6cd5\u7528\u4e8e\u88c1\u526a\u56fe\u50cf\u7684\u5b50\u533a\u57df\u3002\u901a\u8fc7\u88c1\u526a\u56fe\u50cf\uff0c\u53ef\u4ee5\u4f7f\u56fe\u50cf\u4e0d\u5931\u771f\u5730\u94fa\u6ee1\u76ee\u6807\u533a\u57df\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import cv2<\/p>\n<p>def crop_image_cv2(input_path, output_path, center, size):<\/p>\n<p>    img = cv2.imread(input_path)<\/p>\n<p>    cropped_img = cv2.getRectSubPix(img, size, center)<\/p>\n<p>    cv2.imwrite(output_path, cropped_img)<\/p>\n<h2><strong>\u793a\u4f8b\u7528\u6cd5<\/strong><\/h2>\n<p>crop_image_cv2(&#39;input.jpg&#39;, &#39;output.jpg&#39;, (400, 300), (200, 150))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c<code>crop_image_cv2<\/code>\u51fd\u6570\u901a\u8fc7\u6307\u5b9a\u4e2d\u5fc3\u70b9\u548c\u5c3a\u5bf8\u6765\u88c1\u526a\u56fe\u50cf\u7684\u5b50\u533a\u57df\uff0c\u4ece\u800c\u4f7f\u5176\u94fa\u6ee1\u76ee\u6807\u533a\u57df\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u4fdd\u6301\u5bbd\u9ad8\u6bd4\u548c\u76ee\u6807\u533a\u57df\u5c3a\u5bf8\u7684\u5e73\u8861<\/p>\n<\/p>\n<p><p>\u5728\u8c03\u6574\u56fe\u50cf\u5c3a\u5bf8\u548c\u88c1\u526a\u56fe\u50cf\u65f6\uff0c\u4fdd\u6301\u5bbd\u9ad8\u6bd4\u548c\u76ee\u6807\u533a\u57df\u5c3a\u5bf8\u7684\u5e73\u8861\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff0c\u53ef\u4ee5\u5148\u8ba1\u7b97\u51fa\u56fe\u50cf\u548c\u76ee\u6807\u533a\u57df\u7684\u5bbd\u9ad8\u6bd4\uff0c\u7136\u540e\u9009\u62e9\u9002\u5f53\u7684\u8c03\u6574\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<ol>\n<li>\u8ba1\u7b97\u5bbd\u9ad8\u6bd4<\/li>\n<\/ol>\n<p><p>\u8ba1\u7b97\u56fe\u50cf\u548c\u76ee\u6807\u533a\u57df\u7684\u5bbd\u9ad8\u6bd4\u662f\u9009\u62e9\u9002\u5f53\u8c03\u6574\u65b9\u6cd5\u7684\u5173\u952e\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97\u5bbd\u9ad8\u6bd4\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def calculate_aspect_ratio(width, height):<\/p>\n<p>    return width \/ height<\/p>\n<h2><strong>\u793a\u4f8b\u7528\u6cd5<\/strong><\/h2>\n<p>image_aspect_ratio = calculate_aspect_ratio(1920, 1080)<\/p>\n<p>target_aspect_ratio = calculate_aspect_ratio(800, 600)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>\u9009\u62e9\u8c03\u6574\u65b9\u6cd5<\/li>\n<\/ol>\n<p><p>\u5728\u8ba1\u7b97\u51fa\u56fe\u50cf\u548c\u76ee\u6807\u533a\u57df\u7684\u5bbd\u9ad8\u6bd4\u540e\uff0c\u53ef\u4ee5\u6839\u636e\u5b83\u4eec\u7684\u5dee\u5f02\u9009\u62e9\u9002\u5f53\u7684\u8c03\u6574\u65b9\u6cd5\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u82e5\u56fe\u50cf\u7684\u5bbd\u9ad8\u6bd4\u4e0e\u76ee\u6807\u533a\u57df\u7684\u5bbd\u9ad8\u6bd4\u76f8\u7b26\uff0c\u5219\u53ef\u4ee5\u76f4\u63a5\u8c03\u6574\u56fe\u50cf\u5c3a\u5bf8\uff1b\u82e5\u4e0d\u7b26\uff0c\u5219\u9700\u8981\u88c1\u526a\u56fe\u50cf\u3002<\/p>\n<\/p>\n<p><p>\u4e94\u3001\u5728Web\u5e94\u7528\u4e2d\u5e94\u7528\u56fe\u50cf\u94fa\u6ee1\u6280\u672f<\/p>\n<\/p>\n<p><p>\u5728Web\u5e94\u7528\u4e2d\uff0c\u5b9e\u73b0\u56fe\u7247\u94fa\u6ee1\u53ef\u4ee5\u6539\u5584\u7528\u6237\u4f53\u9a8c\uff0c\u4f7f\u754c\u9762\u66f4\u52a0\u7f8e\u89c2\u3002\u5728Web\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528Flask\u6216Django\u7b49\u6846\u67b6\u7ed3\u5408PIL\u6216OpenCV\u5e93\u5b9e\u73b0\u56fe\u50cf\u94fa\u6ee1\u529f\u80fd\u3002<\/p>\n<\/p>\n<ol>\n<li>\u4f7f\u7528Flask\u5b9e\u73b0\u56fe\u50cf\u94fa\u6ee1<\/li>\n<\/ol>\n<p><p>Flask\u662f\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684Web\u6846\u67b6\uff0c\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u4e0e\u56fe\u50cf\u5904\u7406\u5e93\u7ed3\u5408\u4f7f\u7528\u3002\u5728Flask\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4e0a\u4f20\u56fe\u7247\u5e76\u8c03\u6574\u5176\u5c3a\u5bf8\uff0c\u4f7f\u5176\u94fa\u6ee1\u76ee\u6807\u533a\u57df\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from flask import Flask, request, send_file<\/p>\n<p>from PIL import Image<\/p>\n<p>import io<\/p>\n<p>app = Flask(__name__)<\/p>\n<p>@app.route(&#39;\/upload&#39;, methods=[&#39;POST&#39;])<\/p>\n<p>def upload_image():<\/p>\n<p>    file = request.files[&#39;image&#39;]<\/p>\n<p>    img = Image.open(file.stream)<\/p>\n<p>    img = img.resize((800, 600), Image.ANTIALIAS)<\/p>\n<p>    buf = io.BytesIO()<\/p>\n<p>    img.save(buf, format=&#39;JPEG&#39;)<\/p>\n<p>    buf.seek(0)<\/p>\n<p>    return send_file(buf, mimetype=&#39;image\/jpeg&#39;)<\/p>\n<p>if __name__ == &#39;__main__&#39;:<\/p>\n<p>    app.run(debug=True)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0cFlask\u5e94\u7528\u63d0\u4f9b\u4e86\u4e00\u4e2a\u4e0a\u4f20\u63a5\u53e3\uff0c\u7528\u6237\u53ef\u4ee5\u4e0a\u4f20\u56fe\u7247\uff0c\u5e76\u8fd4\u56de\u8c03\u6574\u540e\u7684\u56fe\u7247\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u4f7f\u7528Django\u5b9e\u73b0\u56fe\u50cf\u94fa\u6ee1<\/li>\n<\/ol>\n<p><p>Django\u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684Web\u6846\u67b6\uff0c\u53ef\u4ee5\u901a\u8fc7\u7ed3\u5408\u56fe\u50cf\u5904\u7406\u5e93\u5b9e\u73b0\u56fe\u50cf\u94fa\u6ee1\u529f\u80fd\u3002\u5728Django\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4e0a\u4f20\u56fe\u7247\u5e76\u8c03\u6574\u5176\u5c3a\u5bf8\uff0c\u4f7f\u5176\u94fa\u6ee1\u76ee\u6807\u533a\u57df\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from django.shortcuts import render<\/p>\n<p>from django.http import HttpResponse<\/p>\n<p>from PIL import Image<\/p>\n<p>import io<\/p>\n<p>def upload_image(request):<\/p>\n<p>    if request.method == &#39;POST&#39; and request.FILES[&#39;image&#39;]:<\/p>\n<p>        file = request.FILES[&#39;image&#39;]<\/p>\n<p>        img = Image.open(file)<\/p>\n<p>        img = img.resize((800, 600), Image.ANTIALIAS)<\/p>\n<p>        buf = io.BytesIO()<\/p>\n<p>        img.save(buf, format=&#39;JPEG&#39;)<\/p>\n<p>        buf.seek(0)<\/p>\n<p>        return HttpResponse(buf, content_type=&#39;image\/jpeg&#39;)<\/p>\n<p>    return render(request, &#39;upload.html&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0cDjango\u5e94\u7528\u63d0\u4f9b\u4e86\u4e00\u4e2a\u4e0a\u4f20\u63a5\u53e3\uff0c\u7528\u6237\u53ef\u4ee5\u4e0a\u4f20\u56fe\u7247\uff0c\u5e76\u8fd4\u56de\u8c03\u6574\u540e\u7684\u56fe\u7247\u3002<\/p>\n<\/p>\n<p><p>\u603b\u7ed3<\/p>\n<\/p>\n<p><p>\u5728Python\u4e2d\uff0c\u5b9e\u73b0\u56fe\u7247\u94fa\u6ee1\u7279\u5b9a\u533a\u57df\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574\u56fe\u50cf\u5c3a\u5bf8\u3001\u88c1\u526a\u56fe\u50cf\u4ee5\u53ca\u4fdd\u6301\u5bbd\u9ad8\u6bd4\u7b49\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002PIL\u5e93\u548cOpenCV\u5e93\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u56fe\u50cf\u5904\u7406\u529f\u80fd\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5b9e\u73b0\u8fd9\u4e9b\u65b9\u6cd5\u3002\u5728Web\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528Flask\u6216Django\u7b49\u6846\u67b6\u7ed3\u5408\u56fe\u50cf\u5904\u7406\u5e93\uff0c\u5b9e\u73b0\u56fe\u7247\u94fa\u6ee1\u529f\u80fd\uff0c\u4ece\u800c\u6539\u5584\u7528\u6237\u4f53\u9a8c\u3002\u901a\u8fc7\u5408\u7406\u9009\u62e9\u8c03\u6574\u65b9\u6cd5\u5e76\u4fdd\u6301\u5bbd\u9ad8\u6bd4\u548c\u76ee\u6807\u533a\u57df\u5c3a\u5bf8\u7684\u5e73\u8861\uff0c\u53ef\u4ee5\u4f7f\u56fe\u50cf\u5728\u94fa\u6ee1\u76ee\u6807\u533a\u57df\u7684\u540c\u65f6\u4fdd\u6301\u826f\u597d\u7684\u89c6\u89c9\u6548\u679c\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u4f7f\u7528Python\u5b9e\u73b0\u56fe\u7247\u7684\u94fa\u6ee1\u6548\u679c\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u4e2a\u5e93\u6765\u5b9e\u73b0\u56fe\u7247\u7684\u94fa\u6ee1\u6548\u679c\u3002\u4f8b\u5982\uff0c\u4f7f\u7528Pillow\u5e93\u53ef\u4ee5\u8f7b\u677e\u8c03\u6574\u56fe\u7247\u7684\u5927\u5c0f\uff0c\u4ee5\u4fbf\u9002\u5e94\u7279\u5b9a\u7684\u753b\u5e03\u6216\u7a97\u53e3\u3002\u60a8\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4ee3\u7801\u5b9e\u73b0\uff1a  <\/p>\n<pre><code class=\"language-python\">from PIL import Image\n\n# \u6253\u5f00\u56fe\u7247\nimage = Image.open(&#39;your_image.jpg&#39;)\n\n# \u8bbe\u7f6e\u76ee\u6807\u5c3a\u5bf8\ntarget_size = (width, height)\n\n# \u8c03\u6574\u56fe\u7247\u5c3a\u5bf8\nimage = image.resize(target_size, Image.ANTIALIAS)\n\n# \u4fdd\u5b58\u6216\u663e\u793a\u56fe\u7247\nimage.save(&#39;padded_image.jpg&#39;)\n<\/code><\/pre>\n<p>\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u60a8\u53ef\u4ee5\u5c06\u56fe\u7247\u8c03\u6574\u4e3a\u6240\u9700\u7684\u5c3a\u5bf8\uff0c\u4f7f\u5176\u5728\u89c6\u89c9\u4e0a\u770b\u8d77\u6765\u94fa\u6ee1\u6574\u4e2a\u533a\u57df\u3002<\/p>\n<p><strong>\u5728Python\u4e2d\uff0c\u5982\u4f55\u4fdd\u6301\u56fe\u7247\u7684\u6bd4\u4f8b\u540c\u65f6\u94fa\u6ee1\u67d0\u4e2a\u533a\u57df\uff1f<\/strong><br \/>\u5982\u679c\u5e0c\u671b\u5728\u4fdd\u6301\u56fe\u7247\u6bd4\u4f8b\u7684\u60c5\u51b5\u4e0b\u8fdb\u884c\u94fa\u6ee1\uff0c\u53ef\u4ee5\u4f7f\u7528<code>thumbnail<\/code>\u65b9\u6cd5\u3002\u6b64\u65b9\u6cd5\u4f1a\u8c03\u6574\u56fe\u7247\u7684\u5927\u5c0f\uff0c\u4ee5\u9002\u5e94\u76ee\u6807\u5c3a\u5bf8\uff0c\u800c\u4e0d\u4f1a\u6539\u53d8\u56fe\u7247\u7684\u957f\u5bbd\u6bd4\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">image.thumbnail(target_size, Image.ANTIALIAS)\n<\/code><\/pre>\n<p>\u8fd9\u6837\u5904\u7406\u540e\uff0c\u60a8\u53ef\u4ee5\u518d\u5c06\u5176\u653e\u5165\u4e00\u4e2a\u80cc\u666f\u6216\u753b\u5e03\u4e2d\uff0c\u4f7f\u5176\u770b\u8d77\u6765\u94fa\u6ee1\u6574\u4e2a\u533a\u57df\u3002<\/p>\n<p><strong>\u4f7f\u7528OpenCV\u5982\u4f55\u8ba9\u56fe\u7247\u94fa\u6ee1\u7279\u5b9a\u533a\u57df\uff1f<\/strong><br \/>OpenCV\u662f\u53e6\u4e00\u4e2a\u5f3a\u5927\u7684\u56fe\u50cf\u5904\u7406\u5e93\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u5b9e\u73b0\u56fe\u7247\u7684\u94fa\u6ee1\u6548\u679c\u3002\u901a\u8fc7<code>cv2.resize<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u6307\u5b9a\u76ee\u6807\u5927\u5c0f\u6765\u8c03\u6574\u56fe\u7247\uff0c\u4ee3\u7801\u793a\u4f8b\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">import cv2\n\n# \u8bfb\u53d6\u56fe\u7247\nimage = cv2.imread(&#39;your_image.jpg&#39;)\n\n# \u8c03\u6574\u56fe\u7247\u5c3a\u5bf8\nresized_image = cv2.resize(image, (width, height))\n\n# \u4fdd\u5b58\u6216\u663e\u793a\u56fe\u7247\ncv2.imwrite(&#39;padded_image.jpg&#39;, resized_image)\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u4e5f\u53ef\u4ee5\u5e2e\u52a9\u60a8\u5c06\u56fe\u7247\u8c03\u6574\u4e3a\u6240\u9700\u7684\u5bbd\u5ea6\u548c\u9ad8\u5ea6\uff0c\u4f7f\u5176\u5b8c\u7f8e\u94fa\u6ee1\u6307\u5b9a\u533a\u57df\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u4e00\u3001\u4f7f\u7528Python\u8ba9\u56fe\u7247\u94fa\u6ee1\u7684\u65b9\u6cd5\u6982\u8ff0 \u5728Python\u4e2d\uff0c\u901a\u8fc7\u8c03\u6574\u56fe\u50cf\u5c3a\u5bf8\u4f7f\u5176\u94fa\u6ee1\u7279\u5b9a\u533a\u57df\uff0c\u53ef\u4ee5\u4f7f\u7528\u8c03\u6574\u56fe\u50cf [&hellip;]","protected":false},"author":3,"featured_media":961798,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/961786"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=961786"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/961786\/revisions"}],"predecessor-version":[{"id":961799,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/961786\/revisions\/961799"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/961798"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=961786"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=961786"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=961786"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}