Processing skills of print color saturation
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Matching saturation is an important part of color processing. It emphasizes the saturation of color on timeliness and packaging products to an excessive degree, so that color has a strong visual impact to meet the viewer's appreciation and pleasure. In color processing, some images can enhance the color of another part or the main part on the basis of equal compression of various colors or loss of a certain part of the color. Some pictures can balance the saturation of all colors according to the original content and subject. The color situation is preferred. The methods and essentials are as follows:
1. The depth of the basic primary color is enough
1) Make various solid color blocks, such as red, green, blue and other colors, such as headers and logos, and deep basic colors that do not require layers. Generally, customers require strong and vivid colors for these headers and logos. . In theory, it is to give full play to the extreme effect of the maximum solid density of offset inks to achieve maximum saturation. Although 95% of the dots will increase to 100% after printing, this is not the same as 100% solid printing. 95% of the dots have a density of 95% in the dot area, and the increase is 5 Although the % area has ink, the ink density is thin. 95% of the dots are increased to 100% and the ink density is not as thick and bright as 100% of the solid density.
2) The colors of blue sky, ocean, green leaves, lawns, etc. in landscape photography images, because in people’s minds
A fixed concept has been formed. Therefore, in principle, the color quantity of the C version should be deepened on the basis of the required color amount of the hue, and the green color of the green leaves and the lawn is also the Y version, so that the green color is saturated and vivid. For the basic color of red, green and blue depths required, according to the color shift and ash characteristics of general offset inks, the optimal saturation configuration is:
Red = M95% + Y85%
Green = Y95% + C85%
Blue = C95% + M80%
3) The configuration of the dot value of the blue sky: First, the Y color is not placed below 40% of the C color plate to make the sky blue more bright; the second is to put some Y color in the C color version above 50% to make the sky blue Does not make red, but makes the blue calm and thick. At the same time, because the sky blue ink used now is reddish, it is consciously light red, which makes the blue sky more beautiful.
4) The autumn red leaves of Xiangshan can be treated more red than the actual red leaves. The depth basic color Y is 100%, M is 95%, C can not be placed, making the red leaves appear extraordinarily gorgeous under the sunlight, giving a kind of pleasure. The sense of transparency.
The above-mentioned change in color pursuit breaks through the traditional color matching method and highlights the aesthetic value of color in visual art.
2. Depth basic color maintains the level
1) The depth of the basic color of the dot tone value range is 65% to 90%, because 80% increase the number of Internet points, the level is easy to level. Therefore, for this area, the basic color of the hierarchy should be maintained. Under the premise of emphasizing the density of the field, the level should be maintained, and the density of the ground can not be emphasized, and the level of the basic color should be leveled. Handling essentials: The depth of the basic color of the required level, the focus is that the amount of color in the area above 80% is moderately reduced, so that it can be separated from the solid color block, so that printing can not only print the density of the field, but also maintain the level. .
2) In color processing, the vivid saturation of color and the light and dark levels in color are difficult to balance. To preserve the light and dark levels in color, it is necessary to use complementary colors, and with complementary colors, the vividness of colors will be Lower, grayscale increases. To make the colors bright, it is necessary to put less complementary colors, so that the light and dark levels in the colors will be affected.
For timeliness and packaging products, emphasis should be placed on the saturation of color, which affects the shade of some colors. In this way, the final printed image has a strong color sense and a good visual effect. The key is to master a "degree", and the "degree" is the performance of the operator's aesthetic level, directly related to the color art effect.
3) The layered texture in the deep basic color is mainly expressed by the main color version. For example, the warm colors such as red and orange are expressed in the Y and M color versions, such as the cool colors such as green and cyan, which are represented by the C color version. Therefore, it is necessary to emphasize the hierarchical texture of the main color version, and realistically express the characteristics of the physical layering.
4) The basic color of the middle adjustment area is sufficient. The tone adjustment value of the mid-range area is from 35% to 65%, which is the main part of most objects and is the key area of color processing. To adjust the basic color of this area to the optimal saturation, the method is based on the amount of color required for the hue. Further deepening by about 5%, such as safflower, its light and medium tone M color needs 40% color, can be deepened to 45%, making red more saturated and bright.