{"id":214,"date":"2009-03-19T21:49:12","date_gmt":"2009-03-19T21:49:12","guid":{"rendered":"http:\/\/xromata.com\/?p=214"},"modified":"2017-03-12T09:37:14","modified_gmt":"2017-03-12T09:37:14","slug":"%ce%bc%ce%af%ce%be%ce%b7-cmyk","status":"publish","type":"post","link":"https:\/\/xromata.com\/?p=214","title":{"rendered":"\u039c\u03af\u03be\u03b7 CMYK – CMYK color mixing"},"content":{"rendered":"

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CMYK<\/span><\/span><\/span><\/p>\n

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Ο τρ\u03afτος τρ\u03ccπος μ\u03afξης χρωμ\u03acτων ε\u03afναι μια μ\u03adθοδος κατ\u03ac την οπο\u03afα συνεργ\u03acζονται –θα μπορο\u03cdσαμε να πο\u03cdμε- και η αφαιρετικ\u03ae και η προσθετικ\u03ae αν\u03acμιξη χρωμ\u03acτων. <\/span><\/span><\/p>\n

Αφορ\u03ac κυρ\u03afως στα εκτυπωτικ\u03ac μελ\u03acνια και πρ\u03ccκειται για \u03adνα συνδυασμ\u03cc βαφ\u03aeς και εν\u03adργειας των φωτειν\u03ceν ακτινοβολι\u03ceν. Τα μελ\u03acνια που χρησιμοποιο\u03cdνται ε\u03afναι βαφ\u03adς διαφανε\u03afς και λ\u03ccγω της διαφ\u03acνει\u03acς τους δεν καλ\u03cdπτουν πλ\u03aeρως ο\u03cdτε τη λευκ\u03ccτητα του χαρτιο\u03cd το οπο\u03afο χρωματ\u03afζουν, ο\u03cdτε το χρ\u03ceμα της βαφ\u03aeς του υποστρ\u03ceματος, αλλ\u03ac επιτρ\u03adπουν τη δι\u03adλευση των αντανακλ\u03ceμενων ακτινοβολι\u03ceν, ο συνδυασμ\u03ccς των οπο\u03afων αποδ\u03afδει το τελικ\u03cc χρ\u03ceμα. (Αυτ\u03cc θα γ\u03afνει καλ\u03cdτερα κατανοητ\u03cc αργ\u03ccτερα, \u03ccταν προχωρ\u03aeσουμε και εντρυφ\u03aeσουμε στη λειτουργ\u03afα της χρωματικ\u03aeς απ\u03ccδοσης των διαφ\u03ccρων αντικειμ\u03adνων).<\/span><\/span><\/p>\n

Τα βασικ\u03ac χρ\u03ceματα αυτ\u03aeς της μεθ\u03ccδου, ε\u03afναι και π\u03acλι τρ\u03afα το κυαν\u03cc<\/span>, η ματζ\u03adντα<\/span> και το κ\u03afτρινο<\/span>. Απ\u03cc τα αρχικ\u03ac των αγγλικ\u03ceν ονομασι\u03ceν αυτ\u03ceν των τρι\u03ceν χρωμ\u03acτων (<\/span>Cyan<\/span> – <\/span>Magenta<\/span> <\/span>– <\/span>Yellow<\/span>) σχηματ\u03afζεται η ονομασ\u03afα αυτ\u03aeς της μεθ\u03ccδου, <\/span>C<\/span>M<\/span>Y<\/span>–<\/span>K<\/span>.<\/span><\/span><\/p>\n

Το Κ, στο τ\u03adλος της ονομασ\u03afας, ε\u03afναι το τελευτα\u03afο γρ\u03acμμα της αγγλικ\u03aeς λ\u03adξης <\/span>black<\/span> = μα\u03cdρο. Επειδ\u03ae με τη μ\u03adθοδο <\/span>C<\/span>M<\/span>Y<\/span>K<\/span> <\/span>η απ\u03ccδοση του μα\u03cdρου χρ\u03ceματος δεν ε\u03afναι τ\u03adλεια, προστ\u03afθεται στο τ\u03adλος και μα\u03cdρο μελ\u03acνι, για καλ\u03cdτερη απ\u03ccδοση των χρωμ\u03acτων, οπ\u03ccτε ουσιαστικ\u03ac για την εκτ\u03cdπωση χρησιμοποιε\u03afται τετραχρωμ\u03afα.<\/span><\/span><\/p>\n

Τα τρ\u03afα βασικ\u03ac χρ\u03ceματα της μεθ\u03ccδου <\/span>Cyan<\/span> – <\/span>Magenta<\/span> <\/span>– <\/span>Yellow<\/span> <\/span>ε\u03afναι τα παρ\u03acγωγα χρ\u03ceματα των βασικ\u03ceν ακτινοβολι\u03ceν. Μπορε\u03af να καλο\u03cdνται και να ε\u03afναι βασικ\u03ac, \u03ccμως δεν \u03adχουν την ιδι\u03ccτητα των βασικ\u03ceν χρωμ\u03acτων των δυο \u03acλλων μεθ\u03ccδων, τα οπο\u03afα δηλαδ\u03ae δεν<\/span> μπορο\u03cdν να προκ\u03cdψουν απ\u03cc μ\u03afξη \u03acλλων χρωμ\u03acτων.<\/span><\/span><\/p>\n

Στην μεν προσθετικ\u03ae μ\u03adθοδο (των ακτινοβολι\u03ceν) ε\u03afναι ξεκ\u03acθαρο \u03ccτι πρ\u03ccκειται για παρ\u03acγωγα χρ\u03ceματα.<\/span><\/span><\/p>\n

Στην δε αφαιρετικ\u03ae μ\u03adθοδο (των χρωστικ\u03ceν ουσι\u03ceν), εκτ\u03ccς απ\u03cc το κ\u03afτρινο<\/span> που ε\u03afναι καθαρ\u03ac βασικ\u03cc χρ\u03ceμα και δεν παρ\u03acγεται απ\u03cc \u03acλλες χρωστικ\u03adς, τα \u03acλλα δυο δ\u03cdνανται να παραχθο\u03cdν. Το μεν κυαν\u03cc<\/span> περι\u03adχει μπλε<\/span> και κ\u03afτρινο<\/span>, η δε ματζ\u03adντα<\/span> κ\u03ccκκινο<\/span> και μπλε<\/span>. Και στις δυο περιπτ\u03ceσεις (που ε\u03afναι τελικ\u03ac αποχρ\u03ceσεις των κυρ\u03afων βασικ\u03ceν τους χρωμ\u03acτων μπλε<\/span> και κ\u03ccκκινου<\/span>) ε\u03afναι απαρα\u03afτητη η προσθ\u03aeκη λευκο\u03cd (φωτειν\u03ccτητας).<\/span><\/span><\/p>\n

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\"\"<\/span><\/span><\/p>\n

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Με τη μ\u03adθοδο <\/span>C<\/span>M<\/span>Y<\/span>K<\/span> <\/span>\u03adχουμε τους εξ\u03aeς χρωματικο\u03cdς συνδυασμο\u03cdς:<\/span><\/span><\/p>\n

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κυαν\u03cc<\/span> + κ\u03afτρινο<\/span> = πρ\u03acσινο<\/span><\/span><\/span><\/p>\n

κυαν\u03cc<\/span> + ματζ\u03adντα<\/span> = μπλε<\/span><\/span><\/span><\/p>\n

κ\u03afτρινο<\/span> + <\/span>ματζ\u03adντα<\/span> = κ\u03ccκκινο<\/span><\/span><\/span><\/p>\n

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Η σ\u03cdμπτωση και των τρι\u03ceν χρωμ\u03acτων αποδ\u03afδει \u03adνα σχεδ\u03ccν μα\u03cdρο σκο\u03cdρο χρ\u03ceμα.<\/span><\/span><\/p>\n

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\"\"<\/span><\/span><\/p>\n

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CMYK color mixing<\/span><\/p>\n

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The third color mixing method is a method in which cooperate -it could be said- the subtractive and the additive color mixing.<\/span><\/span><\/span><\/p>\n

CMYC system refers mainly in printing inks and is a combination of dye and the power of light rays. The inks used are transparent dyes and due to their transparency they not fully cover the whiteness of the underneath paper which they color but allow the passage of the reflected radiation, the combination of which gives the final color. (This will be better understood later, when we’ll talk about the color phenomenon for various objects).<\/span><\/span><\/span><\/p>\n

The primary colors of this method are once again three: cyan, magenta and yellow. From the original English names of these three colors (Cyan – Magenta – Yellow)  is formed the name of this method, CMY-K.<\/span><\/span><\/span><\/p>\n

The K at the end of the name, is the last letter of the English word black. Because the CMYK process of black color is not perfect, black ink is added at the end for better color performance.<\/span><\/span><\/span><\/p>\n

The three primary colors of this method, Cyan – Magenta – Yellow are the secondary colors formed by the basic radiations of RGB system. They called basic but actually not having the status of basic colors of the other two methods, that they cannot be produced by mixing of other colors.<\/span><\/span><\/span><\/p>\n

In additive method (radiation) it is clear that these (cyan, yellow, magenta) are produced (secondary) colors.<\/span><\/span><\/span><\/p>\n

In the subtractive method (pigment mixing) except the yellow, which is very basic color and is not produced by other pigments, the other two (cyan, magenta) can be produced. The cyan contains blue and yellow, and magenta red and blue. In<\/span> <\/span>both<\/span> <\/span>cases<\/span> <\/span>is<\/span> <\/span>necessary<\/span> <\/span>to<\/span> <\/span>add<\/span> <\/span>white<\/span> (<\/span>brightness<\/span>).<\/span><\/span><\/span><\/p>\n

On<\/span> CMYK method we have the following color combinations:<\/span><\/span><\/span><\/p>\n

blue + yellow = green<\/span><\/span><\/span><\/p>\n

cyan + magenta = blue<\/span><\/span><\/span><\/p>\n

yellow + magenta = red
\nThe coincidence of all three colors yields a dark almost black color.<\/span><\/span><\/span><\/p>\n

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    CMYK   Ο τρ\u03afτος τρ\u03ccπος μ\u03afξης χρωμ\u03acτων ε\u03afναι μια μ\u03adθοδος κατ\u03ac την οπο\u03afα συνεργ\u03acζονται –θα μπορο\u03cdσαμε να πο\u03cdμε- και η αφαιρετικ\u03ae και η προσθετικ\u03ae αν\u03acμιξη χρωμ\u03acτων. Αφορ\u03ac κυρ\u03afως στα εκτυπωτικ\u03ac μελ\u03acνια και πρ\u03ccκειται για \u03adνα συνδυασμ\u03cc βαφ\u03aeς και εν\u03adργειας των φωτειν\u03ceν ακτινοβολι\u03ceν. Τα μελ\u03acνια που χρησιμοποιο\u03cdνται ε\u03afναι βαφ\u03adς διαφανε\u03afς και λ\u03ccγω της διαφ\u03acνει\u03acς […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[52,456,80,48,451,61,62,8,77,81,457,7],"tags":[463,35,34,146,144,40,280,56,68,60,464,465,405,55,41,57,198,118],"class_list":["post-214","post","type-post","status-publish","format-standard","hentry","category-cmyk","category-subtractive-mixing","category-kitrino-2","category-kokkino","category-cyan","category-magenta","category-mavro","category-mixeis-xromaton","category-mple","category-prasino-2","category-additive-mixing","category-sympantikoi-nomoi-kai-xromata","tag-cmyk","tag-aktinovolia","tag-antanaklasi","tag-146","tag-144","tag-vasiko-xroma","tag-280","tag-kitrino","tag-68","tag-cyano","tag-magenta","tag-mavro","tag-405","tag-ble","tag-paragogo-xroma","tag-prasino","tag-198","tag-118"],"_links":{"self":[{"href":"https:\/\/xromata.com\/index.php?rest_route=\/wp\/v2\/posts\/214","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xromata.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xromata.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xromata.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xromata.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=214"}],"version-history":[{"count":12,"href":"https:\/\/xromata.com\/index.php?rest_route=\/wp\/v2\/posts\/214\/revisions"}],"predecessor-version":[{"id":8934,"href":"https:\/\/xromata.com\/index.php?rest_route=\/wp\/v2\/posts\/214\/revisions\/8934"}],"wp:attachment":[{"href":"https:\/\/xromata.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=214"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xromata.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=214"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xromata.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=214"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}