{"id":978,"date":"2021-12-30T16:30:59","date_gmt":"2021-12-30T08:30:59","guid":{"rendered":"http:\/\/139.9.1.231\/?p=978"},"modified":"2021-12-30T16:30:59","modified_gmt":"2021-12-30T08:30:59","slug":"pyruppyrdown","status":"publish","type":"post","link":"http:\/\/139.9.1.231\/index.php\/2021\/12\/30\/pyruppyrdown\/","title":{"rendered":"\u56fe\u50cf\u91d1\u5b57\u5854pyrUp\u548cpyrDown"},"content":{"rendered":"\n

\u51fd\u6570\u4f5c\u7528\uff1a
\u56fe\u50cf\u91d1\u5b57\u5854\u4e2d\u7684\u5411\u4e0a\u548c\u5411\u4e0b\u91c7\u6837\u5206\u522b\u901a\u8fc7 pyrUp \u548c pyrDown \u5b9e\u73b0\u3002\u8fd9\u91cc\u7684\u5411\u4e0a\u5411\u4e0b\u91c7\u6837\uff0c\u662f\u9488\u5bf9\u56fe\u50cf\u7684\u5c3a\u5bf8\u800c\u8a00\u7684\uff08\u548c\u91d1\u5b57\u5854\u7684\u65b9\u5411\u76f8\u53cd\uff09\uff0c\u5411\u4e0a\u5c31\u662f\u56fe\u50cf\u5c3a\u5bf8\u52a0\u500d\uff0c\u5411\u4e0b\u5c31\u662f\u56fe\u50cf\u5c3a\u5bf8\u51cf\u534a\u3002
\u5bf9\u4e8e pyrUp\uff0c\u56fe\u50cf\u9996\u5148\u5728\u6bcf\u4e2a\u7ef4\u5ea6\u4e0a\u6269\u5927\u4e3a\u539f\u6765\u7684\u4e24\u500d\uff0c\u65b0\u589e\u7684\u884c\u548c\u5217\uff08\u5076\u6570\u884c\u548c\u5217\uff09\u4ee5 0 \u586b\u5145\u3002\u7136\u540e\u7528\u6307\u5b9a\u7684\u6ee4\u6ce2\u5668\u8fdb\u884c\u5377\u79ef\uff08\u5b9e\u9645\u4e0a\u662f\u4e00\u4e2a\u5728\u6bcf\u4e2a\u7ef4\u5ea6\u4e0a\u90fd\u6269\u5927\u4e3a\u539f\u6765\u4e24\u500d\u7684\u8fc7\u6ee4\u5668\uff09\u53bb\u4f30\u8ba1\u201d\u4e22\u5931\u201c\u50cf\u7d20\u7684\u8fd1\u4f3c\u503c\u3002
\u5bf9\u4e8e pyrDown\uff0c\u5148\u7528\u9ad8\u65af\u6838\u5bf9\u56fe\u50cf\u8fdb\u884c\u5377\u79ef\uff0c\u7136\u540e\u5220\u9664\u6240\u6709\u5076\u6570\u884c\u548c\u5076\u6570\u5217\uff0c\u65b0\u7684\u5230\u7684\u56fe\u50cf\u9762\u79ef\u5c31\u4f1a\u53d8\u6210\u6e90\u56fe\u50cf\u7684\u56db\u5206\u4e4b\u4e00\u3002
\u6ce8\u610f\uff1apyrUp \u548c pyrDown \u4e0d\u662f\u4e92\u9006\u7684\u3002<\/p>\n\n\n\n

\u901a\u5e38\uff0c\u6211\u4eec\u8fc7\u53bb\u4f7f\u7528\u7684\u662f\u6052\u5b9a\u5927\u5c0f\u7684\u56fe\u50cf\u3002\u4f46\u662f\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528\u4e0d\u540c\u5206\u8fa8\u7387\u7684\uff08\u76f8\u540c\uff09\u56fe\u50cf\u3002\u4f8b\u5982\uff0c\u5f53\u5728\u56fe\u50cf\u4e2d\u641c\u7d22\u67d0\u4e9b\u4e1c\u897f\uff08\u4f8b\u5982\u4eba\u8138\uff09\u65f6\uff0c\u6211\u4eec\u4e0d\u786e\u5b9a\u5bf9\u8c61\u5c06\u4ee5\u591a\u5927\u7684\u5c3a\u5bf8\u663e\u793a\u5728\u56fe\u50cf\u4e2d\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u5c06\u9700\u8981\u521b\u5efa\u4e00\u7ec4\u5177\u6709\u4e0d\u540c\u5206\u8fa8\u7387\u7684\u76f8\u540c\u56fe\u50cf\uff0c\u5e76\u5728\u6240\u6709\u56fe\u50cf\u4e2d\u641c\u7d22\u5bf9\u8c61\u3002\u8fd9\u4e9b\u5177\u6709\u4e0d\u540c\u5206\u8fa8\u7387\u7684\u56fe\u50cf\u96c6\u79f0\u4e3a\u201c\u56fe\u50cf\u91d1\u5b57\u5854<\/strong>\u201d\uff08\u56e0\u4e3a\u5f53\u5b83\u4eec\u5806\u53e0\u5728\u5e95\u90e8\u65f6\uff0c\u6700\u9ad8\u5206\u8fa8\u7387\u7684\u56fe\u50cf\u4f4d\u4e8e\u9876\u90e8\uff0c\u6700\u4f4e\u5206\u8fa8\u7387\u7684\u56fe\u50cf\u4f4d\u4e8e\u9876\u90e8\u65f6\uff0c\u770b\u8d77\u6765\u50cf\u91d1\u5b57\u5854\uff09\u3002<\/p>\n\n\n\n

\u6709\u4e24\u79cd\u56fe\u50cf\u91d1\u5b57\u5854\u30021\uff09\u9ad8\u65af\u91d1\u5b57\u5854**\u548c2\uff09**\u62c9\u666e\u62c9\u65af\u91d1\u5b57\u5854<\/strong><\/p>\n\n\n\n

\u9ad8\u65af\u91d1\u5b57\u5854\u4e2d\u7684\u8f83\u9ad8\u7ea7\u522b\uff08\u4f4e\u5206\u8fa8\u7387\uff09\u662f\u901a\u8fc7\u5220\u9664\u8f83\u4f4e\u7ea7\u522b\uff08\u8f83\u9ad8\u5206\u8fa8\u7387\uff09\u56fe\u50cf\u4e2d\u7684\u8fde\u7eed\u884c\u548c\u5217\u800c\u5f62\u6210\u7684\u3002\u7136\u540e\uff0c\u8f83\u9ad8\u7ea7\u522b\u7684\u6bcf\u4e2a\u50cf\u7d20\u7531\u57fa\u7840\u7ea7\u522b\u76845\u4e2a\u50cf\u7d20\u7684\u8d21\u732e\u4e0e\u9ad8\u65af\u6743\u91cd\u5f62\u6210\u3002\u901a\u8fc7\u8fd9\u6837\u505a\uff0cM\u00d7NM\u00d7N\u56fe\u50cf\u53d8\u6210M\/2\u00d7N\/2M\/2\u00d7N\/2\u56fe\u50cf\u3002\u56e0\u6b64\u9762\u79ef\u51cf\u5c11\u5230\u539f\u59cb\u9762\u79ef\u7684\u56db\u5206\u4e4b\u4e00\u3002\u5b83\u79f0\u4e3aOctave\u3002\u5f53\u6211\u4eec\u5728\u91d1\u5b57\u5854\u4e2d\u8d8a\u9760\u4e0a\u65f6\uff08\u5373\u5206\u8fa8\u7387\u4e0b\u964d\uff09\uff0c\u8fd9\u79cd\u6a21\u5f0f\u5c31\u4f1a\u7ee7\u7eed\u3002\u540c\u6837\uff0c\u5728\u6269\u5c55\u65f6\uff0c\u6bcf\u4e2a\u7ea7\u522b\u7684\u9762\u79ef\u53d8\u4e3a4\u500d\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528**cv.pyrDown**()\u548c**cv.pyrUp**()\u51fd\u6570\u627e\u5230\u9ad8\u65af\u91d1\u5b57\u5854\u3002<\/p>\n\n\n\n

img = cv.imread('messi5.jpg') \nlower_reso = cv.pyrDown(higher_reso)<\/code><\/pre>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u51fd\u6570\u4f5c\u7528\uff1a\u56fe\u50cf\u91d1\u5b57\u5854\u4e2d\u7684\u5411\u4e0a\u548c\u5411\u4e0b\u91c7\u6837\u5206\u522b\u901a\u8fc7 pyrUp \u548c pyrDown \u5b9e\u73b0\u3002\u8fd9\u91cc\u7684\u5411\u4e0a\u5411\u4e0b\u91c7\u6837\uff0c\u662f\u9488 … \u7ee7\u7eed\u9605\u8bfb\u56fe\u50cf\u91d1\u5b57\u5854pyrUp\u548cpyrDown<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[],"_links":{"self":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/978"}],"collection":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/comments?post=978"}],"version-history":[{"count":2,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/978\/revisions"}],"predecessor-version":[{"id":980,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/978\/revisions\/980"}],"wp:attachment":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/media?parent=978"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/categories?post=978"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/tags?post=978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}