Platemaking should be based on vivid colors

1. Depth basic color to do enough

1) Make sure that all the color blocks in the field, such as red, green, blue and other colors, and the depth of the basic colors do not require the depth of the basic color, the general customers of these header and logo color, require a bright . In theory, it is the maximum effect of the maximum solid density of offset ink to achieve maximum saturation. Although 95% of the printing sites will increase to 100% after printing, this is not the same as the effect produced by 100% on-site printing. 95% of the printing sites only reach the actual density in 95% of the dot area, and the increased number is 5. Although the % area has ink, the ink density is thin. The 95% dot gain to 100% ink density is not as thick and bright as 100% solid density.

2) The colors of blue sky, ocean, green leaves, and lawn in the landscape photography image have been fixed in people's minds. Therefore, in principle, the amount of color in the C version should be deepened based on the amount of color needed in the hue. Some green leaves and lawns are green, and the Y version is also green and bright. For the red, green, and blue depth base colors that require the level, the best saturation configuration is based on the color shift and ash characteristics of general offset inks:

Red = M95% + Y85%

Green = Y95%+C85%

Blue = C95% + M80%

3) Configuration features of sky-blue sky points: Firstly, 40% or less of the C-color version will not contain Y color, making the sky blue brighter; second, put some Y color at 50% of the C color version to make the sky blue Do not take the red, and make the blue calm and thick. At the same time, since the sky blue ink now used is reddish, the light blue is consciously reduced, making the sky blue more beautiful.

4) The autumn leaves of Xiangshan Mountain can be treated more reddish than the actual red leaves. The basic color Y is 100%: M is 95%, and C can hold it, making the leaves in the sun shine, it is extraordinarily gorgeous, giving a joy The sense of transparency.

The above-mentioned changes to the pursuit of color break through the traditional color matching methods and highlight the aesthetic value of color in the visual arts.

2. The depth of the basic color to maintain the level

1) The base tone value of the deep basic color is in the range of 65% to 90%. Since 80% of the network points increase more, the level is easy to merge. Therefore, for this area, the basic color of the hierarchy is required. Under the premise of emphasizing the fact that the density of the field is relatively sufficient, the hierarchy of the field should be maintained. The density of the field density cannot be emphasized, and the level of the basic color level can be achieved. Treatment essentials: The depth of the required level of basic colors, the focus is more than 80% of the color of the area for the appropriate lighten, so that it is a distance away from the field color, so that printing can not only print the full density, but also to maintain the level of .

2) In the color processing, the vivid saturation of the color and the light and shade levels in the color are difficult to both take into account. To preserve the light and shade levels in the color, complementary colors are used, and complementary colors are used. The vividness of the colors will be Decrease, increase grayscale. To make the colors colorful, complementary colors should be placed less, so that the light and shade levels in the colors will be affected. For timeliness and packaging products, emphasis should be placed on the saturated color of the color, affecting the light and dark levels of some colors. In this way, the color impression of the final print image is strong and the visual effect is good. The key lies in mastering a "degree", and the grasp of "degree" is the performance of the operator's aesthetic level and is directly related to the effect of color art.