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          樣本印刷中原稿色彩分類怎么實現?

          來源:http://www.mosstuckerlaw.com/   發布時間:2022-01-08
          樣本印刷中原稿色彩分類實現方式,通常原稿分為CMYK四色,如果是彩色畫稿或彩色照片,則幾乎很困難在成千上萬的畫面上選出顏色,因此通常采用的就是四色印刷方法。即對原稿做色分解,分成四色(CMYK)色版后再印刷,工藝中對色彩進行合成。傳統的“分色”主要是根據減色法原理,通過色彩的不同波長的選擇和吸收特性而分色過程,這樣被濾色形成補光,以至于感光膠片形成黑白圖像的負片、再行加網,構成網點實現。
          The implementation method of original color classification in sample printing is that the original is usually divided into CMYK four colors. If it is a color drawing or color photo, it is almost difficult to select the color on thousands of pictures. Therefore, the four-color printing method is usually used. That is, the original is color decomposed, divided into four-color (CMYK) color plates before printing, and the color is synthesized in the process. The traditional "color separation" is mainly a color separation process based on the principle of subtraction through the selection and absorption characteristics of different wavelengths of color. In this way, the color is filtered to form supplementary light, so that the photosensitive film forms a negative film of black-and-white image, and then screening to form a dot.
          由于企業的大量應用,現代印刷技術已經不再使用上述的分色方法,現在我們通過印前掃描、取樣轉化的數字化技術,將原稿分解為RGB三色,通過電腦的數字化計算處理為CMYK即可實現分色。
          Due to the extensive application of enterprises, the above color separation methods are no longer used in modern printing technology. Now we decompose the original into RGB three colors through the digital technology of prepress scanning and sampling transformation, and realize color separation by computer digital calculation and processing into CMYK.
          濟南臺歷掛歷
          圖像加網的原因與優勢,印刷設備的固態確定決定了印刷只能采用網點再現原稿的連續調層次。如果我們有經驗會發現,圖像放大若干,發現其是由大量的網點組成的圖案形象。
          The reasons and advantages of image screening, the solid-state determination of printing equipment determines that printing can only use dot to reproduce the continuous tone level of the original. If we have experience, we will find that the image is a pattern image composed of a large number of dots.
          因其占據同等大小的空間位置,盡管圖像網點大小不一定一樣大,為了避免這樣的工藝缺陷,我們通過對原稿圖像加網,通過網點中圓點大小來表示圖像顏色的深淺。
          Because it occupies a space position of the same size, although the image dot size is not necessarily the same, in order to avoid such process defects, we screen the original image and express the color depth of the image through the dot size in the dot.
          網點的空間位置和網點大小決定了產品的層次感,當掛網數量更高,網點所占據的空間位置則越小,反之所占據的位置就越大,所能描述的層次就會減少,印刷成品就越粗糙。事實上,印務前原稿的色彩與層次都是通過這樣的形式掛網后被再現出來的。
          The spatial position and size of the outlets determine the sense of hierarchy of the product. When the number of screens is higher, the smaller the spatial position occupied by the outlets. On the contrary, the larger the position occupied, the fewer levels that can be described, and the coarser the printed products. In fact, the color and level of the original before printing are reproduced after hanging the net in this form.
          濟南印刷廠講解的內容  更多的內容  請咨詢公司官網http://www.mosstuckerlaw.com/

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