{"id":1137266,"date":"2025-01-08T21:46:35","date_gmt":"2025-01-08T13:46:35","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1137266.html"},"modified":"2025-01-08T21:46:38","modified_gmt":"2025-01-08T13:46:38","slug":"python%e5%9b%be%e5%83%8f%e4%b8%80%e5%a4%a7%e4%b8%80%e5%b0%8f%e5%a6%82%e4%bd%95%e5%8f%a0%e5%8a%a0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1137266.html","title":{"rendered":"python\u56fe\u50cf\u4e00\u5927\u4e00\u5c0f\u5982\u4f55\u53e0\u52a0"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25101143\/83f1df61-ba7b-4483-aa53-f07b5b724fe9.webp\" alt=\"python\u56fe\u50cf\u4e00\u5927\u4e00\u5c0f\u5982\u4f55\u53e0\u52a0\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528Pillow\u5e93\u6765\u5b9e\u73b0\u56fe\u50cf\u7684\u4e00\u5927\u4e00\u5c0f\u53e0\u52a0\u3002<\/strong> \u901a\u8fc7Pillow\uff0c\u6211\u4eec\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u6253\u5f00\u3001\u5904\u7406\u548c\u4fdd\u5b58\u56fe\u50cf\u3002\u5177\u4f53\u5b9e\u73b0\u6b65\u9aa4\u5305\u62ec\uff1a\u52a0\u8f7d\u56fe\u50cf\u3001\u8c03\u6574\u56fe\u50cf\u5927\u5c0f\u3001\u53e0\u52a0\u56fe\u50cf\u3001\u4fdd\u5b58\u7ed3\u679c\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u5c06\u8be6\u7ec6\u89e3\u91ca\u8fd9\u4e9b\u6b65\u9aa4\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u5b89\u88c5\u548c\u5bfc\u5165\u5fc5\u8981\u7684\u5e93<\/h3>\n<\/p>\n<p><p>\u5728\u5f00\u59cb\u4e4b\u524d\uff0c\u4f60\u9700\u8981\u786e\u4fdd\u5df2\u7ecf\u5b89\u88c5\u4e86Pillow\u5e93\u3002\u5982\u679c\u8fd8\u6ca1\u6709\u5b89\u88c5\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install Pillow<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u5728Python\u811a\u672c\u4e2d\u5bfc\u5165\u5fc5\u8981\u7684\u5e93\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from PIL import Image<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e8c\u3001\u52a0\u8f7d\u56fe\u50cf<\/h3>\n<\/p>\n<p><p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u52a0\u8f7d\u5c06\u8981\u5904\u7406\u7684\u4e24\u5f20\u56fe\u50cf\u3002\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u5f20\u8f83\u5927\u7684\u80cc\u666f\u56fe\u50cf\u548c\u4e00\u5f20\u8f83\u5c0f\u7684\u524d\u666f\u56fe\u50cf\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u6253\u5f00\u80cc\u666f\u56fe\u50cf\u548c\u524d\u666f\u56fe\u50cf<\/p>\n<p>background = Image.open(&quot;background.jpg&quot;)<\/p>\n<p>foreground = Image.open(&quot;foreground.png&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e09\u3001\u8c03\u6574\u56fe\u50cf\u5927\u5c0f<\/h3>\n<\/p>\n<p><p>\u5728\u56fe\u50cf\u53e0\u52a0\u4e4b\u524d\uff0c\u901a\u5e38\u9700\u8981\u8c03\u6574\u524d\u666f\u56fe\u50cf\u7684\u5927\u5c0f\u4ee5\u9002\u5e94\u80cc\u666f\u56fe\u50cf\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u8c03\u6574\u524d\u666f\u56fe\u50cf\u5927\u5c0f<\/p>\n<p>foreground = foreground.resize((100, 100))  # \u8c03\u6574\u4e3a100x100\u50cf\u7d20\u5927\u5c0f<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u56db\u3001\u53e0\u52a0\u56fe\u50cf<\/h3>\n<\/p>\n<p><p>\u786e\u5b9a\u524d\u666f\u56fe\u50cf\u7684\u4f4d\u7f6e\uff0c\u5e76\u5c06\u5176\u53e0\u52a0\u5230\u80cc\u666f\u56fe\u50cf\u4e0a\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Pillow\u7684<code>paste<\/code>\u65b9\u6cd5\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u786e\u5b9a\u524d\u666f\u56fe\u50cf\u7684\u4f4d\u7f6e<\/p>\n<p>position = (background.width - foreground.width, background.height - foreground.height)<\/p>\n<h2><strong>\u53e0\u52a0\u524d\u666f\u56fe\u50cf\u5230\u80cc\u666f\u56fe\u50cf\u4e0a<\/strong><\/h2>\n<p>background.paste(foreground, position, foreground)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e94\u3001\u4fdd\u5b58\u7ed3\u679c<\/h3>\n<\/p>\n<p><p>\u6700\u540e\uff0c\u5c06\u5904\u7406\u540e\u7684\u56fe\u50cf\u4fdd\u5b58\u5230\u78c1\u76d8\u4e0a\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u4fdd\u5b58\u7ed3\u679c<\/p>\n<p>background.save(&quot;result.jpg&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u516d\u3001\u66f4\u591a\u9ad8\u7ea7\u64cd\u4f5c<\/h3>\n<\/p>\n<p><p>\u9664\u4e86\u57fa\u672c\u7684\u56fe\u50cf\u53e0\u52a0\u64cd\u4f5c\uff0cPillow\u8fd8\u63d0\u4f9b\u4e86\u8bb8\u591a\u9ad8\u7ea7\u529f\u80fd\uff0c\u4f8b\u5982\u900f\u660e\u5ea6\u5904\u7406\u3001\u989c\u8272\u8c03\u6574\u7b49\u3002\u4e0b\u9762\u6211\u4eec\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u66f4\u9ad8\u7ea7\u7684\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<p><h4>\u900f\u660e\u5ea6\u5904\u7406<\/h4>\n<\/p>\n<p><p>\u5728\u4e00\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4f60\u53ef\u80fd\u5e0c\u671b\u524d\u666f\u56fe\u50cf\u5177\u6709\u4e00\u5b9a\u7684\u900f\u660e\u5ea6\u3002\u53ef\u4ee5\u4f7f\u7528<code>Image<\/code>\u6a21\u5757\u7684<code>putalpha<\/code>\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u8bbe\u7f6e\u524d\u666f\u56fe\u50cf\u900f\u660e\u5ea6<\/p>\n<p>foreground.putalpha(128)  # \u8bbe\u7f6e\u900f\u660e\u5ea6\u4e3a50%<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>\u989c\u8272\u8c03\u6574<\/h4>\n<\/p>\n<p><p>\u4f60\u8fd8\u53ef\u4ee5\u8c03\u6574\u56fe\u50cf\u7684\u989c\u8272\uff0c\u4f8b\u5982\u4eae\u5ea6\u3001\u5bf9\u6bd4\u5ea6\u7b49\u3002\u53ef\u4ee5\u4f7f\u7528<code>ImageEnhance<\/code>\u6a21\u5757\u6765\u5b9e\u73b0\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from PIL import ImageEnhance<\/p>\n<h2><strong>\u8c03\u6574\u524d\u666f\u56fe\u50cf\u4eae\u5ea6<\/strong><\/h2>\n<p>enhancer = ImageEnhance.Brightness(foreground)<\/p>\n<p>foreground = enhancer.enhance(1.5)  # \u589e\u52a0\u4eae\u5ea6<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e03\u3001\u5b8c\u6574\u4ee3\u7801\u793a\u4f8b<\/h3>\n<\/p>\n<p><pre><code class=\"language-python\">from PIL import Image, ImageEnhance<\/p>\n<h2><strong>\u6253\u5f00\u80cc\u666f\u56fe\u50cf\u548c\u524d\u666f\u56fe\u50cf<\/strong><\/h2>\n<p>background = Image.open(&quot;background.jpg&quot;)<\/p>\n<p>foreground = Image.open(&quot;foreground.png&quot;)<\/p>\n<h2><strong>\u8c03\u6574\u524d\u666f\u56fe\u50cf\u5927\u5c0f<\/strong><\/h2>\n<p>foreground = foreground.resize((100, 100))<\/p>\n<h2><strong>\u8bbe\u7f6e\u524d\u666f\u56fe\u50cf\u900f\u660e\u5ea6<\/strong><\/h2>\n<p>foreground.putalpha(128)<\/p>\n<h2><strong>\u8c03\u6574\u524d\u666f\u56fe\u50cf\u4eae\u5ea6<\/strong><\/h2>\n<p>enhancer = ImageEnhance.Brightness(foreground)<\/p>\n<p>foreground = enhancer.enhance(1.5)<\/p>\n<h2><strong>\u786e\u5b9a\u524d\u666f\u56fe\u50cf\u7684\u4f4d\u7f6e<\/strong><\/h2>\n<p>position = (background.width - foreground.width, background.height - foreground.height)<\/p>\n<h2><strong>\u53e0\u52a0\u524d\u666f\u56fe\u50cf\u5230\u80cc\u666f\u56fe\u50cf\u4e0a<\/strong><\/h2>\n<p>background.paste(foreground, position, foreground)<\/p>\n<h2><strong>\u4fdd\u5b58\u7ed3\u679c<\/strong><\/h2>\n<p>background.save(&quot;result.jpg&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u6b65\u9aa4\u548c\u793a\u4f8b\u4ee3\u7801\uff0c\u4f60\u53ef\u4ee5\u8f7b\u677e\u5730\u5728Python\u4e2d\u4f7f\u7528Pillow\u5e93\u5b9e\u73b0\u56fe\u50cf\u7684\u4e00\u5927\u4e00\u5c0f\u53e0\u52a0\u64cd\u4f5c\u3002\u65e0\u8bba\u662f\u57fa\u672c\u7684\u53e0\u52a0\u64cd\u4f5c\uff0c\u8fd8\u662f\u66f4\u9ad8\u7ea7\u7684\u900f\u660e\u5ea6\u548c\u989c\u8272\u8c03\u6574\uff0cPillow\u90fd\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u529f\u80fd\u6765\u6ee1\u8db3\u4f60\u7684\u9700\u6c42\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u53e0\u52a0\u4e00\u5927\u4e00\u5c0f\u7684\u56fe\u50cf\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528OpenCV\u6216PIL\u5e93\u6765\u53e0\u52a0\u56fe\u50cf\u3002\u9996\u5148\uff0c\u60a8\u9700\u8981\u52a0\u8f7d\u4e24\u5f20\u56fe\u50cf\uff0c\u7136\u540e\u8c03\u6574\u5c0f\u56fe\u50cf\u7684\u5927\u5c0f\u4ee5\u9002\u5e94\u5927\u56fe\u50cf\u7684\u5c3a\u5bf8\u3002\u63a5\u4e0b\u6765\uff0c\u53ef\u4ee5\u4f7f\u7528\u56fe\u50cf\u7684 alpha \u901a\u9053\u8fdb\u884c\u6df7\u5408\uff0c\u6216\u8005\u76f4\u63a5\u5728\u5927\u56fe\u50cf\u4e0a\u6307\u5b9a\u5c0f\u56fe\u50cf\u7684\u4f4d\u7f6e\u8fdb\u884c\u53e0\u52a0\u3002<\/p>\n<p><strong>\u4f7f\u7528OpenCV\u53e0\u52a0\u56fe\u50cf\u7684\u6b65\u9aa4\u662f\u4ec0\u4e48\uff1f<\/strong><br \/>\u4f7f\u7528OpenCV\u53e0\u52a0\u56fe\u50cf\u7684\u57fa\u672c\u6b65\u9aa4\u5305\u62ec\uff1a\u5bfc\u5165cv2\u5e93\uff0c\u8bfb\u53d6\u5927\u56fe\u50cf\u548c\u5c0f\u56fe\u50cf\uff0c\u4f7f\u7528cv2.resize()\u51fd\u6570\u8c03\u6574\u5c0f\u56fe\u50cf\u7684\u5927\u5c0f\uff0c\u6700\u540e\u4f7f\u7528cv2.addWeighted()\u51fd\u6570\u6216\u76f4\u63a5\u5728\u6307\u5b9a\u533a\u57df\u590d\u5236\u5c0f\u56fe\u50cf\u5230\u5927\u56fe\u50cf\u4e0a\u3002\u786e\u4fdd\u5904\u7406\u56fe\u50cf\u7684\u8def\u5f84\u548c\u683c\u5f0f\u6b63\u786e\uff0c\u4ee5\u907f\u514d\u8bfb\u53d6\u9519\u8bef\u3002<\/p>\n<p><strong>\u53e0\u52a0\u56fe\u50cf\u65f6\u5982\u4f55\u5904\u7406\u900f\u660e\u5ea6\uff1f<\/strong><br \/>\u5904\u7406\u900f\u660e\u5ea6\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u5c0f\u56fe\u50cf\u7684 alpha \u901a\u9053\u6765\u5b9e\u73b0\u3002\u5728\u4f7f\u7528OpenCV\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528cv2.addWeighted()\u51fd\u6570\u6765\u63a7\u5236\u4e24\u4e2a\u56fe\u50cf\u7684\u6df7\u5408\u7a0b\u5ea6\u3002\u901a\u8fc7\u8c03\u6574\u6743\u91cd\u53c2\u6570\uff0c\u53ef\u4ee5\u5b9e\u73b0\u4e0d\u540c\u7684\u900f\u660e\u6548\u679c\uff0c\u4f7f\u5f97\u5c0f\u56fe\u50cf\u4e0e\u5927\u56fe\u50cf\u878d\u5408\u5f97\u66f4\u52a0\u81ea\u7136\u3002\u5bf9\u4e8ePIL\u5e93\uff0c\u53ef\u4ee5\u4f7f\u7528Image.alpha_composite()\u51fd\u6570\u6765\u5904\u7406\u5177\u6709\u900f\u660e\u5ea6\u7684\u56fe\u50cf\u53e0\u52a0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528Pillow\u5e93\u6765\u5b9e\u73b0\u56fe\u50cf\u7684\u4e00\u5927\u4e00\u5c0f\u53e0\u52a0\u3002 \u901a\u8fc7Pillow\uff0c\u6211\u4eec\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u6253\u5f00\u3001\u5904 [&hellip;]","protected":false},"author":3,"featured_media":1137270,"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\/1137266"}],"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=1137266"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1137266\/revisions"}],"predecessor-version":[{"id":1137272,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1137266\/revisions\/1137272"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1137270"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1137266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1137266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1137266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}