{"id":4002,"date":"2026-03-09T03:23:02","date_gmt":"2026-03-08T19:23:02","guid":{"rendered":"https:\/\/fredkuo.idv.tw\/wordpress\/?p=4002"},"modified":"2026-03-09T03:35:03","modified_gmt":"2026-03-08T19:35:03","slug":"talk-about-new-g7","status":"publish","type":"post","link":"https:\/\/fredkuo.idv.tw\/wordpress\/?p=4002","title":{"rendered":"Talk about (New) G7+"},"content":{"rendered":"\n

Talk about (New) G7+<\/p>\n\n\n\n

\u8ac7\u4e00\u4e0b (\u65b0) G7+<\/p>\n\n\n\n

\u6211\u5728 2024 \u5e74\u521d\u6536\u5230 G7+ Definition & Algorithms v42 \u7248\u672c\uff0c\u8ac7\u4e86\u4e00\u8b1d\u4e9b\u6211\u7406\u89e3\u7684\u5167\u5bb9(https:\/\/fredkuo.idv.tw\/wordpress\/?p=3702<\/a>)\uff0c\u5c31\u5b9a\u7fa9\u4e0a\uff0c\u4e3b\u8981\u5169\u500b\u90e8\u5206\u6709\u65b0\u7684\u5b9a\u7fa9\uff1a1. \u7248\u8abf\u76ee\u6a19(L*)\u7531 TR015  \u4ee3\u6578\u6982\u5ff5\u6539\u70ba(scaled)RPC\u6982\u5ff5\u30022. \u7070\u5e73\u8861\u76ee\u6a19(a*,b*)\u91cd\u65b0\u5b9a\u7fa9\uff0c\u8b93\u5b83\u66f4\u7b26\u5408\u7d19\u767d\u984f\u8272\u3002\u53e6\u5916\u5c31\u662fG7+\u591a\u63d0\u51fa\u4e86High Density Smoothing(HDS)\uff0c\u5b9a\u7fa9\u4e86CMY 75%\u4ee5\u4e0a\u7684\u7248\u8abf\u884c\u70ba\uff0c\u907f\u514d\u4e86\u9ad8\u98fd\u548c\u5ea6\u5370\u5237(\u8f38\u51fa)\u572875%\u7684\u65b7\u968e\u73fe\u8c61\u3002\u4e5f\u5c31\u662f\u5c0d\u9019\u4e9b\u9ad8\u98fd\u548c\u5ea6\u7684\u8f38\u51fa\uff0c\u5728\u8d85\u904e75%\u7684\u7248\u8abf\u6703\u4ee5\u5e73\u9806\u70ba\u4e3b\uff0c\u7121\u9700\u9075\u5b88\u7070\u5e73\u8861\u898f\u5247\u3002<\/p>\n\n\n\n

\u671f\u9593\u4e5f\u5beb\u4e86verify\u5de5\u5177\uff0c\u4f46\u90a3\u6642Curve + \u8edf\u9ad4\u9084\u672a\u767c\u4f48\uff0c\u6211\u4e0d\u80fd\u78ba\u8a8d\u6211\u7684G7+ Verify \u7d50\u679c\u662f\u5426\u8207 Curve + \u7b26\u5408\u3002<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Fig. 2024 G7+ Definition & Algorithms v42 \u7248\u672c\u3002<\/p>\n\n\n\n

\u4eca\u5e74\u6536\u5230\u4e86v55b \u7248\u672c\uff0c\u6700\u4e3b\u8981\u7684\u8b8a\u5316\u662f\u7070\u5e73\u8861\u76ee\u6a19 a*,b* \u7684\u5b9a\u7fa9\u53c8\u8b8a\u4e86\uff0c\u66f4\u8cbc\u8fd1\u7d19\u5f35\u984f\u8272\uff0c\u6587\u4ef6\u4e2d\u76f4\u63a5\u6a19\u793a\u70baNew G7+\u3002\u5176\u9918\u90fd\u662f\u5c0f\u8b8a\u5316\uff0c\u6c92\u6709\u592a\u5927\u5f71\u97ff\u3002<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Fig. 2025 G7+ Definition & Algorithms v55b \u7248\u672c\u3002<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Fig. 2025 v55b \u7248\uff0c\u7070\u5e73\u8861\u76ee\u6a19 a*,b* \u7684\u5b9a\u7fa9\u53c8\u8b8a\u4e86\uff0c\u6587\u4ef6\u5167\u76f4\u63a5\u6a19\u793a\u70ba New G7+\u3002<\/p>\n\n\n\n

\u8d81\u9019\u4e00\u6b21\u6587\u4ef6\u7684\u6aa2\u95b1\uff0c\u4ee5\u81ea\u5df1\u7684\u7406\u89e3\uff0c\u518d\u505a\u4e00\u6b21G7+\u6574\u7406\u3002<\/p>\n\n\n\n

\u7b2c\u4e00\u500b\u8981\u8ac7\u7684\u4f9d\u820a\u662f\u7248\u8abf\u91cd\u65b0\u5b9a\u7fa9\uff0c\u5982\u524d\u8ff0\uff0c\u7248\u8abf\u5b9a\u7fa9\u7531TR015 \u6539\u70ba (Scaled) RPC-SPC\uff0cRPC as Reference Print Condition\uff0c\u76ee\u524d\u53c3\u7167\u76ee\u6a19\u70baCRPC6\uff0c\u5169\u500b\u7248\u672c\u6587\u4e2d\u90fd\u6709\u63d0\u5230\u9019\u500b\u53c3\u7167\u76ee\u6a19\u4ee5\u5f8c\u53ef\u80fd\u6703\u6709\u8b8a\u5316\uff0c\u4e0d\u4e00\u5b9a\u662f CRPC6 \u3002<\/p>\n\n\n\n

\u539f\u6587\u5982\u4e0b\uff1a<\/p>\n\n\n\n

Potential RPC change<\/p>\n\n\n\n

In future, the current RPC (based on CRPC6) may be replaced to align with changes in<\/p>\n\n\n\n

international printing standards, or for other reasons.<\/p>\n\n\n\n

G7+ support tools must facilitate easy adaptation to a new RPC, if and when one is chosen by<\/p>\n\n\n\n

PRINTING United Alliance.<\/p>\n\n\n\n

(v55b page 11)<\/p>\n\n\n\n

\u4e0d\u904e\uff0c\u5373\u4f7f\u6539\u70ba\u53c3\u7167\u5176\u5b83\u201dinternational standard” \uff0c\u4f30\u8a08\u5dee\u7570\u4e5f\u4e0d\u5927\uff0c\u6211\u4e0d\u6703\u592a\u5728\u610f\uff1b\u5c31\u50cf\u6211\u4e5f\u4e0d\u6703\u5728\u610f\u6211\u5de5\u4f5c\u55ae\u4f4d\u4e00\u5b9a\u8981\u8d70Fogra39 \u6216CRPC6 \uff0c\u4f9d\u7167\u6578\u64da\u898f\u5247\u7a69\u5b9a\u7684\u57f7\u884c\u6bd4\u8f03\u91cd\u8981\u3002<\/p>\n\n\n\n

\u4e5f\u7531\u65bc\u76ee\u524d\u7684\u53c3\u7167\u76ee\u6a19\u662fCRPC6 \uff0c\u6240\u4ee5\u7528\u9285\u7248\u7d19\u5e73\u7248\u5370\u5237(as SPC, Subject Print Condition)\u5728\u9075\u5faaG7+(RPC)\u6642\uff0c\u7248\u8abf(L*)\u5e7e\u4e4e\u6c92\u4ec0\u9ebc\u5dee\u7570 \u3002\u800c\u96e2CRPC6\u8d8a\u9060\u7684\u898f\u7bc4\uff0c\u5982CRPC1\uff0c\u5176\u7248\u8abf\u5dee\u7570\u5c31\u5f88\u5927\u3002<\/p>\n\n\n\n

\u4ee5\u73fe\u4ecaG7\u8a8d\u8b49\u591a\u4ee5\u9285\u7248\u7d19\u70ba\u4e3b\uff0c\u6240\u4ee5\u5728\u4f5c\u696d\u4e0a\u3001\u53ca\u5176\u8f38\u51fa\u7d50\u679c\u4e0d\u6703\u6709\u592a\u591a\u5dee\u7570\u3002\u4e5f\u56e0\u70ba\u9019\u6a23\uff0c\u76ee\u524d\u4ee5CRPC6\u70ba\u76ee\u6a19\u7684G7\u8a8d\u8b49\u5ee0\u5bb6\u5176\u5be6\u6c92\u6709\u9700\u6c42\u4e00\u5b9a\u8981\u53bb\u505aG7+\u8a8d\u8b49\u3002\u5012\u662f\u4e00\u4e9b\u6709\u7279\u5225\u6750\u6599\u7684\u5ee0\u5bb6\uff0c\u90a3\u7a2e\u98fd\u548c\u5ea6\u7279\u5225\u9ad8\u7684\uff0c\u8d85\u8d8aCRPC6 \u751a\u81f3 CRPC7\u7684\uff1b\u6216\u662f\u98fd\u548c\u5ea6\u7279\u5225\u4f4e\u7684\uff0c\u5982\u65b0\u805e\u7d19\u5370\u5237\uff0c\u7528G7+\u898f\u5247\u57f7\u884c\uff0c\u8996\u89ba\u6548\u679c\u6703\u6bd4\u8f03\u597d\u4e00\u9ede\uff0c\u9019\u4e9b\u55ae\u4f4d\u624d\u66f4\u9700\u8981\u53bb\u4e86\u89e3G7+\u7684\u898f\u5247\u3002<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Fig. \u820aG7 \u7248\u8abf\u4f9d TR015 (NPDC)\u4f5c\u70ba\u7248\u8abf\u76ee\u6a19\u503c\u3002<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Fig. G7+ \u7248\u8abf\u4f9d\u5be6\u969b\u5370\u5237\u72c0\u614b(SPC)\u53c3\u7167RPC\u7248\u8abf\u505a\u6578\u5b78\u5f0f\u7e2e\u653e(Scaled)\u4ee5\u4f5c\u70ba\u7248\u8abf\u76ee\u6a19\u503c\u3002\u5716\u793a\u70ba\u4ee5CRPC1 \u4f5c\u70ba SPC \uff0c\u5c07RPC(CRPC6) scale \u5230SPC(CRPC1) \u7684\u7248\u8abf\u5dee\u7570\u3002<\/p>\n\n\n\n

\u7b2c\u4e8c\u500b\u662f\u7070\u5e73\u8861\u76ee\u6a19\u503c(a*,b*)\u7684\u5dee\u7570\uff1a<\/p>\n\n\n\n

\u820a\u7684G7\u7070\u76ee\u6a19\u503c\u5f9e\u7d19\u5f35a*,b*\u503c\u8d77\u59cb\uff0c\u4f9d\u7248\u8abf\u6bd4\u4f8b\u4e00\u76f4100%\u6642\uff0ca*,b*\u503c\u540c\u6642\u70ba0\uff0c\u9019\u662f\u6578\u5b78\u516c\u5f0f\u7684\u610f\u6db5\u5927\u65bc\u5be6\u8cea\u8f38\u51fa\u7684\u610f\u6db5\uff0c\u4e5f\u56e0\u6b64\u6709\u5fc5\u8981\u505a\u5f8c\u7e8c\u7684\u4fee\u6b63\u3002<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n


Fig. \u820aG7 \u7070\u5e73\u8861 a*:b*\u76ee\u6a19\u5b9a\u7fa9\u3002<\/p>\n\n\n\n

G7+ \u7684\u7070\u5e73\u8861\u76ee\u6a19\u503c\u6703\u4ee5 CMY 300% \u7684XYZ\u503c\u70ba\u6a1e\u7d10\uff0c\u5176\u7070\u8272\u8868\u73fe\u6703\u66f4\u8cbc\u8fd1\u7d19\u5f35\u984f\u8272\u3002<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Fig.  G7+ \u7684\u7070\u5e73\u8861\u5b9a\u7fa9\uff0ca*,b*\u503c\u9808\u7531 CIEXYZ \u63db\u7b97\u800c\u4f86\u3002<\/p>\n\n\n\n

\u65b0\u7248G7+\u7684\u76ee\u6a19a*,b*\u503c\u6709\u9ede\u8907\u96dc\uff0c\u6587\u4ef6\u4e2d\u5f9e\u9801\u657812\u523015\u90fd\u5728\u8aaa\u660e\u8a08\u7b97\u65b9\u6cd5\u53ca\u89e3\u91cb\u610f\u6db5\uff0c\u6211\u7c21\u55ae\u6b78\u7d0d\u5e7e\u9ede\uff1a<\/p>\n\n\n\n

1.\u53d6\u5f97\u8f38\u51fa\u6700\u6697\u7684\u6578\u64da\uff1a\u2019Y_graymin\u2019\uff0c \u9019\u500b\u6578\u64da\u5148\u53d6\u81eap2p CMYK 400%\u7684\u8272\u584a\uff0c\u6b64\u6578\u64da\u518d\u4e58\u4ee5\u5e38\u6578 0.8 \u7528\u4f86\u6a21\u64ec IT8 1617 \u8272\u584a\u4e2d\u6700\u4f4eY\u503c\u7684\u8272\u584a\u3002(ps. \u4e00\u822c\u8f38\u51fa\u627f\u8f09\u4e0d\u4e86400%\u7684\u58a8\u91cf\uff0c\u6240\u4ee5CMYK400%\u7684Y\u503c\u6709\u53ef\u80fd\u4e0d\u6703\u662f 1617\u8272\u584a\u88cf\u6700\u4f4e\u7684Y\u503c\uff0c\u56e0\u6b64\u518d\u4e58\u5e38\u65780.8\u4f86\u6a21\u64ec\u5370\u5237\u54c1\u7684\u6700\u4f4eY\u503c\uff0cY_graymin\u3002)<\/p>\n\n\n\n

2.\u53d6\u5f97 XYZ Hinge \u6a1e\u7d10\u503c\uff1ap2p \u4e2d\u6700\u6697\u7684\u8272\u584a\u4e0d\u898b\u5f97\u662f\u7d14\u7070\uff0c\u56e0\u6b64\u6700\u6697X,Z\u7684\u6a1e\u7d10\u503c\u76f4\u63a5\u53c3\u7167D50\u5149\u6e90\u7684X,Z \u503c\uff0cY\u503c\u5247\u6cbf\u7528Y_graymin\u3002\u6b64\u6b65\u9a5f\u53d6\u5f97 hingeX,hingeY(Y_graymin x 0.8),hingeZ\u3002<\/p>\n\n\n\n

3. \u8a08\u7b97\u65b0\u7684 G7+ gray balanced XYZ\uff0c\u898f\u5247\u5982\u4e0b\uff1a<\/p>\n\n\n\n

For each cmy control point index (i) value (0, 2, 4, …95, 98, 100);<\/p>\n\n\n\n

Yi = (given by tonality algorithm)<\/p>\n\n\n\n

Xi = (Xs – hingeX) x (Yi – hingeY) \/ (Ys – hingeY) + hingeX;<\/p>\n\n\n\n

Zi = (Zs – hingeZ) x (Yi – hingeY) \/ (Ys – hingeY) + hingeZ;<\/p>\n\n\n\n

Where Xs, Ys and Zs are substrate values.<\/p>\n\n\n\n

Convert Xi, Yi, Zi to L*i, a*i, b*i, as needed by standard formulae.<\/p>\n\n\n\n

\u4ee5\u4e0a\u5373\u70ba\u65b0\u7684 (New) G7+ \u7070\u8272\u76ee\u6a19\u503c(a*,b*)\uff0c\u76f8\u5c0d\u65bcG7+\uff0c\u9019\u500b\u6578\u503c\u53c8\u66f4\u8cbc\u8fd1\u7d19\u5f35\u984f\u8272\u3002<\/p>\n\n\n\n

\u4ee5\u4e0b\u70ba\u4e00\u5be6\u969b\u6a23\u5f35\uff0c\u7d19\u767d Lab 93.07,1.53,-1.52 \u7684\u4e09\u7a2e\u7070\u5e73\u8861\u76ee\u6a19\u503c\uff0c\u820aG7 \u5728100%\u6642 a*,b*\u503c\u6b78\u96f6\uff0cG7+\u8f03\u8cbc\u8fd1\u7d19\u5f35\u984f\u8272 \uff0cNew G7+ \u6578\u503c\u53c8\u66f4\u8cbc\u8fd1\u7d19\u5f35\u984f\u8272\u3002<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Fig. a*, b* aim value for G7, G7+, New G7+\u3002G7+\u8f03\u8cbc\u8fd1\u7d19\u5f35\u984f\u8272 \uff0cNew G7+ \u6578\u503c\u53c8\u66f4\u8cbc\u8fd1\u7d19\u5f35\u984f\u8272\u3002(ps. G7+ \u572875%\u5f8c\u4e0d\u518d\u8a55\u4f30\u7070\u5e73\u8861\uff0c\u820a\u7248G7 \u56e0\u6b0a\u91cd\u95dc\u4fc2\uff0c75%\u5f8c\u7684\u7070\u5e73\u8861\u91cd\u8981\u6027\u4e5f\u6703\u964d\u4f4e)\u3002<\/p>\n\n\n\n

\u81f3\u65bc\u6211\u7684G7 + verify \u5de5\u5177\uff0c\u53c3\u7167 Curve + \u8edf\u9ad4(v5.1.1 beta)\uff0c\u5728Black w\u2206L*\u3001CMY w\u2206L*,w\u2206Ch\u7b49\u6578\u503c\u7684\u5dee\u7570\u975e\u5e38\u5c0f(<0.05)\uff0c\u8868\u793a\u6211\u5728\u9019\u65b9\u9762\u7684\u7406\u89e3\u53ca\u516c\u5f0f\u7684\u904b\u7528\u6c92\u6709\u554f\u984c\uff1b\u6211\u4ee5 New G7+ \u65b9\u5f0f\u8a08\u7b97\u7684avg w\u2206Ch ,max w\u2206Ch\u986f\u793a\u5728\u201dcmy2″ \u6b04\u4f4d\uff0c\u8ddfG7+\u5728max w\u2206Ch\u7d04\u67090.4\u7684\u5dee\u8ddd\uff1b\u53ef\u4ee5\u770b\u51fa\u4f86\uff0c\u76ee\u524dCurve + \u8edf\u9ad4\u5728\u76ee\u6a19a*,b* \u503c\u7684\u8a08\u7b97\u9084\u662f\u820a\u7248G7+\uff0c\u4e26\u672a\u7528\u4e0aNew G7+ \u8a08\u7b97\u65b9\u5f0f\u3002<\/p>\n\n\n\n

\u53e6\u5916\u5728 HDS \u7684\u2206TVI\u90e8\u5206\uff0c\u9084\u6709\u4e9b\u90e8\u5206\u672a\u5b8c\u5168\u91d0\u6e05\uff0c\u5f85\u66f4\u6e05\u695a\u4e00\u9ede\u518d\u4f86\u505aG7+ Verify \u7684\u5de5\u5177\u767c\u8868\u3002<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n
\"\"<\/a><\/figure>\n\n\n\n

Fig. \u6211\u7684G7 + verify \u5de5\u5177\uff0c\u6bd4\u5c0d Curve + \u8edf\u9ad4\u5728Black w\u2206L*\u3001CMY w\u2206L*,w\u2206Ch\u7b49\u6578\u503c\u7684\u5dee\u7570\u975e\u5e38\u5c0f\uff0c\u8868\u793a\u6211\u5728\u9019\u65b9\u9762\u7684\u7406\u89e3\u53ca\u516c\u5f0f\u7684\u904b\u7528\u6c92\u6709\u554f\u984c\u3002\u76ee\u524dCurve + \u5728\u76ee\u6a19a*,b* \u503c\u7684\u8a08\u7b97\u9084\u662f\u820a\u7248G7+\uff0c\u4e26\u672a\u7528\u4e0aNew G7+ \u7684\u8a08\u7b97\u65b9\u5f0f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

Talk about (New) G7+ \u8ac7\u4e00\u4e0b (\u65b0) G7+ \u6211\u5728 2024 \u5e74\u521d\u6536\u5230 G7+ Defin […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4002","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4002"}],"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=4002"}],"version-history":[{"count":7,"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4002\/revisions"}],"predecessor-version":[{"id":4021,"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4002\/revisions\/4021"}],"wp:attachment":[{"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fredkuo.idv.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}