{"id":973869,"date":"2024-12-27T06:00:23","date_gmt":"2024-12-26T22:00:23","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/973869.html"},"modified":"2024-12-27T06:00:25","modified_gmt":"2024-12-26T22:00:25","slug":"python%e5%a6%82%e4%bd%95%e4%bf%9d%e5%ad%98%e9%ab%98%e6%b8%85%e5%9b%be%e7%89%87","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/973869.html","title":{"rendered":"python\u5982\u4f55\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24195836\/9c53f6b7-be9f-4a47-9eb9-a1b40f6c4c6b.webp\" alt=\"python\u5982\u4f55\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\" \/><\/p>\n<p><p> \u5f00\u5934\u6bb5\u843d\uff1a<br \/>\u5728Python\u4e2d\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\uff0c\u53ef\u4ee5\u901a\u8fc7<strong>\u4f7f\u7528PIL\u5e93\u3001\u5229\u7528OpenCV\u5e93\u3001\u9009\u62e9\u5408\u9002\u7684\u56fe\u7247\u683c\u5f0f<\/strong>\u7b49\u65b9\u5f0f\u5b9e\u73b0\u3002\u5176\u4e2d\uff0c\u9009\u62e9\u5408\u9002\u7684\u56fe\u7247\u683c\u5f0f\u662f\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\u7684\u5173\u952e\u3002JPEG\u548cPNG\u662f\u4e24\u79cd\u5e38\u89c1\u7684\u56fe\u7247\u683c\u5f0f\uff0c\u5176\u4e2dPNG\u683c\u5f0f\u66f4\u9002\u5408\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\uff0c\u56e0\u4e3a\u5b83\u652f\u6301\u65e0\u635f\u538b\u7f29\uff0c\u53ef\u4ee5\u4fdd\u7559\u56fe\u7247\u7684\u6240\u6709\u7ec6\u8282\u3002\u5728\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\u65f6\uff0c\u9700\u786e\u4fdd\u8bbe\u7f6e\u9ad8\u8d28\u91cf\u53c2\u6570\uff0c\u4ee5\u51cf\u5c11\u538b\u7f29\u8fc7\u7a0b\u4e2d\u4ea7\u751f\u7684\u5931\u771f\u3002\u6b64\u5916\uff0c\u8c03\u6574\u56fe\u7247\u7684\u5206\u8fa8\u7387\u548c\u5c3a\u5bf8\u4e5f\u662f\u5f71\u54cd\u56fe\u7247\u6e05\u6670\u5ea6\u7684\u91cd\u8981\u56e0\u7d20\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u63a2\u8ba8\u8fd9\u4e9b\u65b9\u6cd5\u53ca\u5176\u5177\u4f53\u5b9e\u73b0\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u4f7f\u7528PIL\u5e93<\/p>\n<\/p>\n<p><p>PIL\uff08Python Imaging Library\uff09\u662fPython\u4e2d\u5e38\u7528\u7684\u56fe\u50cf\u5904\u7406\u5e93\uff0c\u5b83\u63d0\u4f9b\u4e86\u591a\u79cd\u56fe\u50cf\u6587\u4ef6\u683c\u5f0f\u7684\u652f\u6301\uff0c\u5e76\u652f\u6301\u56fe\u50cf\u7684\u521b\u5efa\u3001\u4fee\u6539\u548c\u4fdd\u5b58\u7b49\u64cd\u4f5c\u3002\u8981\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\uff0c\u53ef\u4ee5\u5229\u7528PIL\u5e93\u63d0\u4f9b\u7684\u529f\u80fd\u3002<\/p>\n<\/p>\n<ol>\n<li>\u5b89\u88c5PIL\u5e93<\/li>\n<\/ol>\n<p><p>\u8981\u4f7f\u7528PIL\u5e93\uff0c\u9996\u5148\u9700\u8981\u5b89\u88c5Pillow\uff0c\u8fd9\u662fPIL\u7684\u4e00\u4e2a\u5206\u652f\uff0c\u4e14\u5728Python 3\u4e2d\u88ab\u5e7f\u6cdb\u4f7f\u7528\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5Pillow\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install pillow<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>\u4f7f\u7528PIL\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247<\/li>\n<\/ol>\n<p><p>PIL\u5e93\u63d0\u4f9b\u4e86Image\u6a21\u5757\uff0c\u53ef\u4ee5\u901a\u8fc7\u8be5\u6a21\u5757\u52a0\u8f7d\u3001\u5904\u7406\u5e76\u4fdd\u5b58\u56fe\u7247\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528PIL\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\u7684\u57fa\u672c\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from PIL import Image<\/p>\n<h2><strong>\u6253\u5f00\u56fe\u7247<\/strong><\/h2>\n<p>image = Image.open(&#39;input.jpg&#39;)<\/p>\n<h2><strong>\u4fdd\u5b58\u56fe\u7247\uff0c\u5e76\u8bbe\u7f6e\u8d28\u91cf\u53c2\u6570<\/strong><\/h2>\n<p>image.save(&#39;output.png&#39;, &#39;PNG&#39;, quality=95)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u6253\u5f00\u4e86\u4e00\u5f20JPEG\u683c\u5f0f\u7684\u56fe\u7247\uff0c\u5e76\u5c06\u5176\u4fdd\u5b58\u4e3aPNG\u683c\u5f0f\u3002\u8fd9\u662f\u56e0\u4e3aPNG\u683c\u5f0f\u652f\u6301\u65e0\u635f\u538b\u7f29\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u4fdd\u7559\u56fe\u7247\u7ec6\u8282\u3002\u6b64\u5916\uff0c\u901a\u8fc7\u8bbe\u7f6e<code>quality<\/code>\u53c2\u6570\uff0c\u53ef\u4ee5\u63a7\u5236\u56fe\u7247\u4fdd\u5b58\u65f6\u7684\u8d28\u91cf\u3002\u8d28\u91cf\u53c2\u6570\u7684\u53d6\u503c\u8303\u56f4\u4e3a1\u5230100\uff0c\u6570\u503c\u8d8a\u9ad8\uff0c\u56fe\u7247\u8d28\u91cf\u8d8a\u597d\u3002<\/p>\n<\/p>\n<p><p>\u4e8c\u3001\u5229\u7528OpenCV\u5e93<\/p>\n<\/p>\n<p><p>OpenCV\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u8ba1\u7b97\u673a\u89c6\u89c9\u5e93\uff0c\u652f\u6301\u591a\u79cd\u56fe\u50cf\u5904\u7406\u529f\u80fd\uff0c\u5e76\u4e14\u53ef\u4ee5\u4e0ePython\u7ed3\u5408\u4f7f\u7528\u3002OpenCV\u53ef\u4ee5\u7528\u6765\u8bfb\u53d6\u3001\u663e\u793a\u548c\u4fdd\u5b58\u56fe\u50cf\u3002<\/p>\n<\/p>\n<ol>\n<li>\u5b89\u88c5OpenCV\u5e93<\/li>\n<\/ol>\n<p><p>\u5728\u4f7f\u7528OpenCV\u4e4b\u524d\uff0c\u9700\u8981\u5b89\u88c5\u5176Python\u7248\u672c\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u5b89\u88c5OpenCV\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install opencv-python<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>\u4f7f\u7528OpenCV\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247<\/li>\n<\/ol>\n<p><p>\u4ee5\u4e0b\u662f\u4f7f\u7528OpenCV\u5e93\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\u7684\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import cv2<\/p>\n<h2><strong>\u8bfb\u53d6\u56fe\u7247<\/strong><\/h2>\n<p>image = cv2.imread(&#39;input.jpg&#39;)<\/p>\n<h2><strong>\u4fdd\u5b58\u56fe\u7247\uff0c\u5e76\u8bbe\u7f6e\u538b\u7f29\u53c2\u6570<\/strong><\/h2>\n<p>cv2.imwrite(&#39;output.png&#39;, image, [cv2.IMWRITE_PNG_COMPRESSION, 9])<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528<code>cv2.imread<\/code>\u51fd\u6570\u8bfb\u53d6\u4e86\u4e00\u5f20JPEG\u683c\u5f0f\u7684\u56fe\u7247\uff0c\u5e76\u4f7f\u7528<code>cv2.imwrite<\/code>\u51fd\u6570\u5c06\u5176\u4fdd\u5b58\u4e3aPNG\u683c\u5f0f\u3002<code>cv2.IMWRITE_PNG_COMPRESSION<\/code>\u53c2\u6570\u7528\u4e8e\u8bbe\u7f6ePNG\u683c\u5f0f\u7684\u538b\u7f29\u7ea7\u522b\uff0c\u8303\u56f4\u4e3a0\u52309\uff0c\u6570\u503c\u8d8a\u9ad8\uff0c\u538b\u7f29\u7387\u8d8a\u9ad8\uff0c\u4f46\u53ef\u80fd\u635f\u5931\u4e00\u4e9b\u7ec6\u8282\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001\u9009\u62e9\u5408\u9002\u7684\u56fe\u7247\u683c\u5f0f<\/p>\n<\/p>\n<p><p>\u5728\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\u65f6\uff0c\u9009\u62e9\u5408\u9002\u7684\u56fe\u7247\u683c\u5f0f\u81f3\u5173\u91cd\u8981\u3002\u4e0d\u540c\u7684\u56fe\u7247\u683c\u5f0f\u6709\u4e0d\u540c\u7684\u7279\u70b9\u548c\u7528\u9014\u3002<\/p>\n<\/p>\n<ol>\n<li>JPEG\u683c\u5f0f<\/li>\n<\/ol>\n<p><p>JPEG\u662f\u4e00\u79cd\u6709\u635f\u538b\u7f29\u683c\u5f0f\uff0c\u9002\u5408\u4fdd\u5b58\u771f\u5b9e\u4e16\u754c\u7684\u7167\u7247\u548c\u590d\u6742\u7684\u573a\u666f\u3002\u4f46\u5728\u538b\u7f29\u8fc7\u7a0b\u4e2d\u53ef\u80fd\u4f1a\u4e22\u5931\u4e00\u4e9b\u7ec6\u8282\uff0c\u4e0d\u9002\u5408\u4fdd\u5b58\u9700\u8981\u9ad8\u4fdd\u771f\u5ea6\u7684\u56fe\u7247\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>PNG\u683c\u5f0f<\/li>\n<\/ol>\n<p><p>PNG\u662f\u4e00\u79cd\u65e0\u635f\u538b\u7f29\u683c\u5f0f\uff0c\u9002\u5408\u4fdd\u5b58\u9700\u8981\u9ad8\u8d28\u91cf\u548c\u4fdd\u771f\u5ea6\u7684\u56fe\u7247\u3002\u5b83\u652f\u6301\u900f\u660e\u80cc\u666f\u548c\u4e30\u5bcc\u7684\u8272\u5f69\u8868\u73b0\uff0c\u662f\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\u7684\u7406\u60f3\u9009\u62e9\u3002<\/p>\n<\/p>\n<ol start=\"3\">\n<li>TIFF\u683c\u5f0f<\/li>\n<\/ol>\n<p><p>TIFF\u683c\u5f0f\u662f\u4e00\u79cd\u7075\u6d3b\u7684\u6587\u4ef6\u683c\u5f0f\uff0c\u652f\u6301\u591a\u79cd\u538b\u7f29\u7b97\u6cd5\uff0c\u5305\u62ec\u65e0\u635f\u538b\u7f29\u3002\u5b83\u901a\u5e38\u7528\u4e8e\u4e13\u4e1a\u56fe\u50cf\u5904\u7406\u9886\u57df\uff0c\u5982\u51fa\u7248\u548c\u5370\u5237\u7b49\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u8c03\u6574\u56fe\u7247\u5206\u8fa8\u7387\u548c\u5c3a\u5bf8<\/p>\n<\/p>\n<p><p>\u8c03\u6574\u56fe\u7247\u7684\u5206\u8fa8\u7387\u548c\u5c3a\u5bf8\u4e5f\u662f\u5f71\u54cd\u56fe\u7247\u6e05\u6670\u5ea6\u7684\u91cd\u8981\u56e0\u7d20\u3002\u5728\u4fdd\u5b58\u56fe\u7247\u65f6\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u8c03\u6574\u56fe\u7247\u7684\u5206\u8fa8\u7387\u548c\u5c3a\u5bf8\uff0c\u4ee5\u83b7\u5f97\u6700\u4f73\u7684\u663e\u793a\u6548\u679c\u3002<\/p>\n<\/p>\n<ol>\n<li>\u8c03\u6574\u56fe\u7247\u5206\u8fa8\u7387<\/li>\n<\/ol>\n<p><p>\u56fe\u7247\u5206\u8fa8\u7387\u6307\u7684\u662f\u56fe\u7247\u4e2d\u6bcf\u82f1\u5bf8\u6240\u5305\u542b\u7684\u50cf\u7d20\u6570\uff08DPI\uff09\uff0c\u5206\u8fa8\u7387\u8d8a\u9ad8\uff0c\u56fe\u7247\u8d8a\u6e05\u6670\u3002\u5728\u67d0\u4e9b\u573a\u5408\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u8c03\u6574\u56fe\u7247\u7684\u5206\u8fa8\u7387\u4ee5\u6ee1\u8db3\u7279\u5b9a\u7684\u9700\u6c42\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u8c03\u6574\u56fe\u7247\u5c3a\u5bf8<\/li>\n<\/ol>\n<p><p>\u8c03\u6574\u56fe\u7247\u5c3a\u5bf8\u53ef\u4ee5\u901a\u8fc7\u7f29\u653e\u56fe\u7247\u7684\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u6765\u5b9e\u73b0\u3002\u5728\u8c03\u6574\u5c3a\u5bf8\u65f6\uff0c\u9700\u8981\u4fdd\u6301\u56fe\u7247\u7684\u5bbd\u9ad8\u6bd4\uff0c\u4ee5\u907f\u514d\u56fe\u7247\u5931\u771f\u3002<\/p>\n<\/p>\n<p><p>\u4ee5\u4e0b\u662f\u8c03\u6574\u56fe\u7247\u5206\u8fa8\u7387\u548c\u5c3a\u5bf8\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from PIL import Image<\/p>\n<h2><strong>\u6253\u5f00\u56fe\u7247<\/strong><\/h2>\n<p>image = Image.open(&#39;input.jpg&#39;)<\/p>\n<h2><strong>\u8c03\u6574\u56fe\u7247\u5c3a\u5bf8<\/strong><\/h2>\n<p>image = image.resize((1920, 1080), Image.ANTIALIAS)<\/p>\n<h2><strong>\u8c03\u6574\u56fe\u7247\u5206\u8fa8\u7387<\/strong><\/h2>\n<p>image.save(&#39;output.png&#39;, &#39;PNG&#39;, dpi=(300, 300))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528<code>resize<\/code>\u65b9\u6cd5\u8c03\u6574\u4e86\u56fe\u7247\u7684\u5c3a\u5bf8\uff0c\u5e76\u901a\u8fc7\u8bbe\u7f6e<code>dpi<\/code>\u53c2\u6570\u8c03\u6574\u4e86\u56fe\u7247\u7684\u5206\u8fa8\u7387\u3002<\/p>\n<\/p>\n<p><p>\u4e94\u3001\u4f18\u5316\u56fe\u7247\u4fdd\u5b58\u53c2\u6570<\/p>\n<\/p>\n<p><p>\u5728\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\u65f6\uff0c\u4f18\u5316\u56fe\u7247\u7684\u4fdd\u5b58\u53c2\u6570\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u56fe\u7247\u7684\u8d28\u91cf\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u4f18\u5316\u53c2\u6570\uff1a<\/p>\n<\/p>\n<ol>\n<li>JPEG\u683c\u5f0f\u7684\u4f18\u5316\u53c2\u6570<\/li>\n<\/ol>\n<p><p>\u5728\u4f7f\u7528JPEG\u683c\u5f0f\u4fdd\u5b58\u56fe\u7247\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e<code>quality<\/code>\u53c2\u6570\u63a7\u5236\u56fe\u7247\u7684\u8d28\u91cf\u3002\u6b64\u5916\uff0c<code>optimize<\/code>\u53c2\u6570\u53ef\u4ee5\u7528\u4e8e\u4f18\u5316\u6587\u4ef6\u5927\u5c0f\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">image.save(&#39;output.jpg&#39;, &#39;JPEG&#39;, quality=95, optimize=True)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>PNG\u683c\u5f0f\u7684\u4f18\u5316\u53c2\u6570<\/li>\n<\/ol>\n<p><p>\u5728\u4f7f\u7528PNG\u683c\u5f0f\u4fdd\u5b58\u56fe\u7247\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e<code>compression<\/code>\u53c2\u6570\u63a7\u5236\u538b\u7f29\u7ea7\u522b\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">image.save(&#39;output.png&#39;, &#39;PNG&#39;, compression=9)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"3\">\n<li>TIFF\u683c\u5f0f\u7684\u4f18\u5316\u53c2\u6570<\/li>\n<\/ol>\n<p><p>\u5728\u4f7f\u7528TIFF\u683c\u5f0f\u4fdd\u5b58\u56fe\u7247\u65f6\uff0c\u53ef\u4ee5\u9009\u62e9\u4e0d\u540c\u7684\u538b\u7f29\u7b97\u6cd5\uff0c\u5982LZW\u3001ZIP\u548cJPEG\u7b49\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">image.save(&#39;output.tiff&#39;, &#39;TIFF&#39;, compression=&#39;lzw&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u516d\u3001\u603b\u7ed3<\/p>\n<\/p>\n<p><p>\u5728Python\u4e2d\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528PIL\u5e93\u3001\u5229\u7528OpenCV\u5e93\u3001\u9009\u62e9\u5408\u9002\u7684\u56fe\u7247\u683c\u5f0f\u3001\u8c03\u6574\u56fe\u7247\u5206\u8fa8\u7387\u548c\u5c3a\u5bf8\u3001\u4f18\u5316\u56fe\u7247\u4fdd\u5b58\u53c2\u6570\u7b49\u65b9\u5f0f\u5b9e\u73b0\u3002\u901a\u8fc7\u9009\u62e9\u5408\u9002\u7684\u56fe\u7247\u683c\u5f0f\u548c\u8bbe\u7f6e\u5408\u7406\u7684\u53c2\u6570\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u56fe\u7247\u7684\u8d28\u91cf\uff0c\u6ee1\u8db3\u4e0d\u540c\u573a\u5408\u7684\u9700\u6c42\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u548c\u53c2\u6570\uff0c\u624d\u80fd\u83b7\u5f97\u6700\u4f73\u7684\u56fe\u7247\u6548\u679c\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u5904\u7406\u9ad8\u6e05\u56fe\u7247\uff1f<\/strong><br \/>\u5728Python\u4e2d\u5904\u7406\u9ad8\u6e05\u56fe\u7247\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u591a\u4e2a\u5e93\uff0c\u5982PIL\uff08Pillow\uff09\u3001OpenCV\u7b49\u3002Pillow\u662f\u4e00\u4e2a\u975e\u5e38\u6d41\u884c\u7684\u56fe\u50cf\u5904\u7406\u5e93\uff0c\u652f\u6301\u591a\u79cd\u6587\u4ef6\u683c\u5f0f\uff0c\u53ef\u4ee5\u8f7b\u677e\u52a0\u8f7d\u3001\u5904\u7406\u548c\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\u3002\u901a\u8fc7\u8c03\u6574\u56fe\u50cf\u7684\u5206\u8fa8\u7387\u548c\u8d28\u91cf\u53c2\u6570\uff0c\u60a8\u53ef\u4ee5\u786e\u4fdd\u4fdd\u5b58\u7684\u56fe\u7247\u4fdd\u6301\u9ad8\u6e05\u3002<\/p>\n<p><strong>\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\u65f6\u9700\u8981\u6ce8\u610f\u54ea\u4e9b\u53c2\u6570\uff1f<\/strong><br \/>\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\u65f6\uff0c\u60a8\u9700\u8981\u5173\u6ce8\u6587\u4ef6\u683c\u5f0f\u3001\u5206\u8fa8\u7387\u548c\u538b\u7f29\u8d28\u91cf\u3002\u9009\u62e9\u5408\u9002\u7684\u6587\u4ef6\u683c\u5f0f\uff08\u5982PNG\u6216JPEG\uff09\u53ef\u4ee5\u5f71\u54cd\u56fe\u7247\u7684\u8d28\u91cf\u3002JPEG\u683c\u5f0f\u901a\u5e38\u4f1a\u6709\u538b\u7f29\u8bbe\u7f6e\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574\u201cquality\u201d\u53c2\u6570\u6765\u63a7\u5236\u56fe\u7247\u7684\u6e05\u6670\u5ea6\u3002PNG\u683c\u5f0f\u5219\u4e0d\u6d89\u53ca\u538b\u7f29\uff0c\u9002\u5408\u9700\u8981\u4fdd\u6301\u900f\u660e\u5ea6\u6216\u9ad8\u8d28\u91cf\u7684\u573a\u5408\u3002<\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528Pillow\u5e93\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\uff1f<\/strong><br \/>\u4f7f\u7528Pillow\u5e93\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\u975e\u5e38\u7b80\u5355\u3002\u60a8\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\u5b9e\u73b0\uff1a  <\/p>\n<pre><code class=\"language-python\">from PIL import Image\n\n# \u6253\u5f00\u56fe\u7247\nimage = Image.open(&#39;input_image.jpg&#39;)\n\n# \u4fdd\u5b58\u4e3a\u9ad8\u6e05PNG\nimage.save(&#39;output_image.png&#39;, quality=95)\n<\/code><\/pre>\n<p>\u5728\u8fd9\u91cc\uff0c\u201cquality\u201d\u53c2\u6570\u53ef\u6839\u636e\u9700\u8981\u8fdb\u884c\u8c03\u6574\uff0c\u4ee5\u786e\u4fdd\u8f93\u51fa\u56fe\u7247\u7684\u8d28\u91cf\u8fbe\u5230\u60a8\u7684\u8981\u6c42\u3002<\/p>\n<p><strong>\u9664\u4e86Pillow\uff0c\u8fd8\u6709\u54ea\u4e9b\u5e93\u53ef\u4ee5\u7528\u4e8e\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\uff1f<\/strong><br \/>\u9664\u4e86Pillow\uff0cOpenCV\u4e5f\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u9009\u62e9\uff0c\u5c24\u5176\u9002\u5408\u9700\u8981\u8fdb\u884c\u590d\u6742\u56fe\u50cf\u5904\u7406\u7684\u573a\u666f\u3002OpenCV\u652f\u6301\u591a\u79cd\u56fe\u50cf\u683c\u5f0f\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u56fe\u50cf\u5904\u7406\u529f\u80fd\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\uff1a  <\/p>\n<pre><code class=\"language-python\">import cv2\n\n# \u8bfb\u53d6\u56fe\u7247\nimage = cv2.imread(&#39;input_image.jpg&#39;)\n\n# \u4fdd\u5b58\u4e3a\u9ad8\u6e05JPEG\ncv2.imwrite(&#39;output_image.jpg&#39;, image, [int(cv2.IMWRITE_JPEG_QUALITY), 95])\n<\/code><\/pre>\n<p>\u4f7f\u7528OpenCV\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574JPEG\u8d28\u91cf\u53c2\u6570\u786e\u4fdd\u56fe\u7247\u7684\u9ad8\u6e05\u5ea6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5f00\u5934\u6bb5\u843d\uff1a\u5728Python\u4e2d\u4fdd\u5b58\u9ad8\u6e05\u56fe\u7247\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528PIL\u5e93\u3001\u5229\u7528OpenCV\u5e93\u3001\u9009\u62e9\u5408\u9002\u7684\u56fe\u7247\u683c\u5f0f\u7b49\u65b9\u5f0f\u5b9e\u73b0 [&hellip;]","protected":false},"author":3,"featured_media":973879,"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\/973869"}],"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=973869"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/973869\/revisions"}],"predecessor-version":[{"id":973880,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/973869\/revisions\/973880"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/973879"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=973869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=973869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=973869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}