{"id":3652,"date":"2023-07-05T13:37:27","date_gmt":"2023-07-05T05:37:27","guid":{"rendered":"http:\/\/www.fredkuo.idv.tw\/wordpress\/?p=3652"},"modified":"2023-07-05T13:37:27","modified_gmt":"2023-07-05T05:37:27","slug":"phone-camera-as-colorimeter","status":"publish","type":"post","link":"https:\/\/fredkuo.idv.tw\/wordpress\/?p=3652","title":{"rendered":"Phone camera as colorimeter?"},"content":{"rendered":"

Phone camera\u00a0 as colorimeter?<\/span><\/p>\n

\"phonmeter\"<\/p>\n

\u6211\u4e00\u76f4\u5728\u8aaa\uff0c\u5728\u8272\u5f69\u7684\u5de5\u4f5c\u4e0a\u9700\u8981\u4e00\u500b\u5100\u5668\u5c07\u8272\u5f69\u9019\u500b\u73fe\u8c61\u8b8a\u6210\u6578\u5b57\uff0c\u800c\u9019\u500b\u6240\u8b02\u7684\u5100\u5668\uff0c\u6700\u4f4e\u968e\u7684\u67b6\u69cb\u6703\u662f\u4ec0\u9ebc\u6a23\u5462\uff1f<\/span><\/p>\n

 <\/p>\n

\u76ee\u524d\u624b\u4e0a\uff0c\u6240\u8b02\u4f4e\u968e\u7684\u8272\u5ea6\u5100\u5668\u662f\u4e0a\u5716\u90a3\u5169\u9846\u3002<\/span><\/p>\n

 <\/p>\n

\u9084\u6709\u66f4\u4f4e\u7684\u55ce\uff1f\u5176\u5be6\uff0c\u624b\u6a5f\u76f8\u6a5f\u5c31\u662fRGB sensor\uff0c\u80fd\u62c9\u5f97\u5230\u6578\u503c\uff0c\u80fd\u53d6\u5f97\u6578\u503c\uff0c\u5c31\u6709\u6a5f\u6703\u53ef\u4ee5\u6210\u70ba\u8272\u5ea6\u8a08\u3002<\/span><\/p>\n

 <\/p>\n

\u9019\u4e00\u7bc7\u5c31\u662f\u9019\u4e00\u65b9\u9762\u7684\u63a2\u7d22\u3002<\/span><\/p>\n

\u5148\u628a\u5de5\u4f5c\u65b9\u6cd5\u3001\u5de5\u4f5c\u908f\u8f2f\u5148\u7406\u51fa\u4f86\uff0c\u5c07\u4f86\u662f\u5426\u80fd\u5920\u5be6\u969b\u904b\u7528\uff1f\u904b\u7528\u7684\u5834\u666f\uff1f\u2026\u2026\u90fd\u6703\u5efa\u7acb\u5728\u9019\u4e00\u6b21\u63a2\u7d22\u7684\u57fa\u790e\u4e0a\u3002<\/span><\/p>\n

 <\/p>\n

\u5de5\u4f5c\u908f\u8f2f\u5176\u5be6\u5f88\u55ae\u7d14\uff1a<\/span><\/p>\n

\u76f8\u6a5f\u505a\u70ba\u4e00\u500bRGB sensor\uff0c\u5927\u91cf\u6bd4\u5c0d\u76f8\u6a5fRGB\u7684\u6578\u503c\u8207\u5be6\u969b\u8272\u5f69Lab\u7684\u6578\u503c\uff0c\u5c31\u80fd\u5efa\u7acb\u8d77\u4e00\u500b\u76f8\u6a5fRGB\u8207\u5be6\u969b\u8272\u5f69Lab\u7684\u5c0d\u61c9\u8868(icc profile)\u3002\u5982\u6b64\uff0c\u76f8\u6a5f\u7684RGB\u53cd\u61c9\u503c\u5c31\u53ef\u4ee5\u900f\u904e\u6b64\u5c0d\u61c9\u8868\u5f97\u5230\u4e00\u500bLab\u6578\u503c\u3002\u4e5f\u5c31\u662f\uff0c\u76f8\u6a5fRGB\u900f\u904e\u4e00\u500bprofile\uff0c\u5b83\u5c31\u53ef\u4ee5\u662f\u4e00\u500b\u8272\u5ea6\u8a08\u3002<\/span><\/p>\n

 <\/p>\n

\u908f\u8f2f\u5df2\u7d93\u6709\u4e86\u3002\u5de5\u4f5c\u65b9\u6cd5\u4e0a\u8981\u8655\u7406\u54ea\u4e9b\u554f\u984c\uff1f\u7a0b\u5e8f\u5982\u4f55\u9032\u884c\uff1a<\/span><\/p>\n

 <\/p>\n

1.\u6a23\u672c\u91cf\uff1a\u76f8\u6a5f\u53d6\u8272\u584a\u6a23\u672c\u81ea\u7136\u4e0d\u662f\u554f\u984c\uff0c\u518d\u591a\u8272\u584a\u90fd\u662f\u4e00\u500bshot\uff0c\u554f\u984c\u662f\uff0c\u8981\u6bd4\u5c0d\u7684\u8272\u5f69\u6578\u503c\u5fc5\u9808\u4e00\u500b\u4e00\u500b\u7684\u91cf\u51fa\u4f86\uff1b\u7528i1\u4f86\u91cf\uff0c\u53d6\u4e00\u500bA4\u9762\u7a4d400\u500b\u6a23\u672c\u4e0d\u662f\u592a\u5927\u554f\u984c\uff0c\u5982\u679c\u7528\u55ae\u9ede\u8a2d\u5099\u4f86\u91cf\uff0c\u9019\u500b\u5de5\u4f5c\u91cf\u5c31\u6709\u9ede\u5927\u4e86\uff1b\u57fa\u65bc\u4e0a\u9762\u5e7e\u6b21\u7684\u767c\u6587\uff0c36\u500b\u8272\u584a\u5df2\u7d93\u8db3\u4ee5\u5efa\u69cb\u4e00\u500b\u5b8c\u6574\u7684profile\uff1b\u540c\u6a23\u7684\uff0c\u57fa\u65bc\u6700\u5c11\u7684\u5de5\u4f5c\u91cf\uff0c\u9019\u6b21\u4e00\u6a23\u752836\u500b\u6a23\u672c\u4f86\u5efa\u7acb\u76f8\u6a5f\u7684profile\u3002<\/span><\/p>\n

 <\/p>\n

    \n
  1. \u5efa\u7acb\u4e00\u5957\u7a0b\u5e8f\u4f86\u53d6\u5f97\u76f8\u7247\u88e1\u976236\u7d44RGB\u6578\u503c\uff0c\u9019\u4e00\u6b21\u7528imagemagick\u4f86\u8655\u7406\u9019\u65b9\u9762\u7684\u4f5c\u696d\u3002\u7a0b\u5e8f\u5982\u4e0b\uff1a<\/span><\/li>\n<\/ol>\n
      \n
    • \u5148\u81ea\u884c\u628a\u4f5c\u696d\u7bc4\u570dcrop\u4e0b\u4f86\u3002<\/span><\/li>\n
    • \u4ee5imagemagick \u6307\u4ee4’convert \u00a0 -info:’\u53d6\u5f97\u5716\u50cf\u9577\u5bec pixel \u6578\u3002<\/span><\/li>\n
    • \u4f9d\u4e0a\u8ff0\u9577\u5becpixel\u8a08\u7b976\u00d76\u7684\u4e2d\u5fc3\u9ede\u4f4d\u7f6e\u3002<\/span><\/li>\n<\/ul>\n
        \n
      • \u4f9d\u4e0a\u8ff0\u4f4d\u7f6e\u53d63×3 pixel RGB \u5e73\u5747\u503c\u3002<\/span><\/li>\n<\/ul>\n

        \"Think36\"<\/p>\n

          \n
        1. \u4f9d\u4e0a\u8ff036\u7d44RGB\u503c\u8207\u5be6\u9ad436\u7d44Lab\u503c\u5373\u53ef\u5f62\u6210icc profile\u3002<\/span><\/li>\n<\/ol>\n

           <\/p>\n

          \u6578\u503c\u9a57\u8b49\uff1a<\/span><\/p>\n

          \u5c0736\u7d44\u76f8\u6a5fRGB\u6578\u503c\u7d93\u7531profile\u53d6\u5f9736\u7d44Lab\u503c\uff0c\u8207\u539f\u59cbLab\u503c\u6bd4\u5c0d\u8272\u5dee\uff0c\u5f97\u7d50\u679c\u5982\u4e0b\uff1a<\/span><\/p>\n

          \u5de6\u908a\u4e00\u7d44\u70ba\u4ee5 percetual intent \u8a08\u7b97Lab\uff0c\u8207\u539f\u59cbLab\u6bd4\u5c0d\uff0c\u5e73\u5747de00\u8272\u5dee0.8\uff0c\u6700\u5927\u8272\u5dee2.3\u3002\u53f3\u908a\u4e00\u7d44\u70ba\u4ee5 absolut intent \u8a08\u7b97Lab\uff0c\u8207\u539f\u59cbLab\u6bd4\u5c0d\uff0c\u5e73\u5747de00\u8272\u5dee0.59\uff0c\u6700\u5927\u8272\u5dee1.88\u3002<\/span><\/p>\n

          \"profileDe2\"<\/p>\n

          \u7c21\u55ae\u7d50\u8ad6<\/span><\/p>\n

          \u9019\u4e00\u6b21\u5de5\u4f5c\u908f\u8f2f\u53ca\u5de5\u4f5c\u65b9\u6cd5\u63a2\u7d22\u7684\u7d50\u679c\uff0c\u76f8\u6a5fRGB sensor \u6578\u503c\u7d93\u7531\u8f49\u63db\u53ef\u9054\u5230\u5e73\u5747\u7cbe\u5ea60.5\u7684\u4f4d\u7f6e\u3002\u56de\u61c9\u5230\u672c\u7bc7\u7684\u4e3b\u984c\uff0c\u624b\u6a5f\u76f8\u6a5f\u662f\u6709\u80fd\u529b\u9054\u6210\u8272\u5ea6\u8a08\u7684\u529f\u80fd\u3002<\/span><\/p>\n

           <\/p>\n

          \u7576\u7136\uff0c\u5be6\u969b\u4f7f\u7528\u4e0a\u9084\u662f\u6703\u6709\u4e00\u4e9b\u554f\u984c\uff0c\u6bd4\u5982\u8aaa\u76f8\u6a5f\u4e0a\u4e0b\u5de6\u53f3\u66dd\u5149\u7684\u5747\u52fb\u5ea6\u5c31\u662f\u4e00\u500b\u554f\u984c\uff0c\u9019\u65b9\u9762\u7684\u5de5\u4f5c\u908f\u8f2f\u4e5f\u6709\u505a\u4e00\u4e9b\u63a2\u8a0e\u3002<\/span><\/p>\n

          \u76f8\u6a5f\u66dd\u5149\u5747\u52fb\u5ea6\u88dc\u511f\u7684\u5de5\u4f5c\u908f\u8f2f\u5982\u4e0b\uff1a<\/span><\/p>\n

            \n
          • \u5148\u53d6\u5f97\u4e0a\u4e0b\u5de6\u53f34\u500b\u767d\u8272\u90e8\u5206\u7684RGB\u503c\u3002<\/span><\/li>\n
          • \u53d6\u5176\u5e73\u5747\u503c\u4f5c\u70ba\u53c3\u8003\u4eae\u5ea6\u3002<\/span><\/li>\n
          • \u4ee5\u4e0a\u8ff0\u5e73\u5747\u4eae\u5ea6\u70ba\u76ee\u6a19\uff0c\u53d6\u5f976\u00d76 36\u500b\u4f4d\u7f6e\u7684\u88dc\u511f\u56e0\u5b50\uff08compansate factor\uff09\u3002<\/span>
            \n<\/span>\"ExpoComp\"
            \n<\/span>Fig. \u5de6\u908a\u70ba\u539f\u59cb\u66dd\u5149\uff0c\u53f3\u908a\u70ba\u66dd\u5149\u5747\u52fb\u5ea6\u88dc\u511f\u7d50\u679c\u3002<\/span><\/li>\n
          • \u5c07\u524d\u4e00\u968e\u6bb5\u53d6\u5f97\u76846\u00d76 36\u7d44RGB\uff0c\u4f9d\u88dc\u511f\u56e0\u5b50\u7b97\u51fa\u65b0\u7684RGB\u6578\u503c\uff0c\u6b64\u6578\u503c\u5373\u70ba\u66dd\u5149\u5e73\u5747\u5ea6\u77ef\u6b63\u5f8c\u7684\u6578\u5b57\u3002<\/span><\/li>\n<\/ul>\n

             <\/p>\n

            \u6240\u4ee5\u5c31\u662f\u7528\u8edf\u9ad4\u7684\u65b9\u5f0f\u4f86\u88dc\u8db3\u66dd\u5149\u5747\u52fb\u5ea6\u7684\u554f\u984c\u3002<\/span><\/p>\n

             <\/p>\n

            \u4ee5\u4e0a\u5169\u500b\u908f\u8f2f\u5806\u758a\u5728\u4e00\u8d77\u3002\u589e\u52a0\u4e86\u76f8\u6a5f\u4f5c\u70ba\u8272\u5ea6\u8a08\u7684\u4fe1\u4efb\u5ea6\u3002<\/span><\/p>\n

             <\/p>\n

            \u6211\u5148\u5b8c\u6210\u9019\u5169\u500b\u908f\u8f2f\uff0c\u5f8c\u7e8c\u518d\u4f86\u770b\u770b\u600e\u9ebc\u61c9\u5c0d\u5de5\u4f5c\u5834\u5408\u4e2d\u7684\u8b8a\u6578\u3002<\/span><\/p>\n

             <\/p>\n

            #PrintByNumber<\/span><\/p>\n

            #colorimeter<\/span><\/p>\n

            #CameraAsColorimeter<\/span><\/p>\n

             <\/p>\n","protected":false},"excerpt":{"rendered":"

            Phone camera\u00a0 as colorimeter? \u6211\u4e00\u76f4\u5728\u8aaa\uff0c\u5728\u8272\u5f69\u7684\u5de5\u4f5c\u4e0a\u9700\u8981\u4e00\u500b\u5100\u5668\u5c07\u8272\u5f69\u9019\u500b\u73fe […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-3652","post","type-post","status-publish","format-standard","hentry","category-4"],"_links":{"self":[{"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3652"}],"collection":[{"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3652"}],"version-history":[{"count":1,"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3652\/revisions"}],"predecessor-version":[{"id":3657,"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3652\/revisions\/3657"}],"wp:attachment":[{"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3652"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3652"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}