Digital Printing Three Of The Most Important Design Element - Digital Printing, Color Mixing,
Editor's note: color mixing, Vignette and the gradient (when we put one color and another color when mixed together, they actually refer to the same concept) is the digital printing process we often encounter three problem.
Because people can easily create a drawing and publishing software, color mixing, such as virtual light gradient effect, they get a lot of applications, and we can see in a lot of publishing on the mixing error is one example.
When they are displayed on the screen, they look very normal?? Other elements are true. However, due to resolution digital press restrictions, it is more suitable for printing ribbon manuscript.
If you want a virtual photon as a raster image to use, then open the image in Photoshop to a certain extent, reduce the compartmentalization of (chunking, is a clear difference in color blocks, rather than a color or ladder effect relationship between the smooth transition.) phenomenon, in addition, you can choose "Add variegated" filter, which is our most common solutions.
1, learn to calculate a given order of Adjustment will appear in the replication process of chunking phenomenon.
2, with a device divided by the output device resolution, line screens, you calculate the number of colors it can create (or gray level).
3, with the value derived above to calculate a given tone color within the scope of the actual number.
If the size of each ribbon is 0.05 inches / 0.12 centimeters, or smaller, then the difference between different ribbon is not clear, the basic can form a smooth transition.
Example, in a resolution of 600dpi and screening lines to 85 lines Screen, you can get 49 gray levels (N = 600/85). If the gradient of a color from the color blocks 20% of the transition to 75%, then the fractional difference between them is 26.95 ((49) x (0.75? 0.20)). If the gradient color block length is 5 inches, then the width of each ribbon is 0.18 (5/26.95) inch?? Image will be very obvious phenomenon of compartmentalization.
Recommendation: Although this is not a constant formula, but it is useful to you. If you come to the ribbon is smaller than 0.05 inches, then you can get a perfect image. Currently, most digital printers are used in the second generation of stochastic screening technology, can greatly reduce the people's calculations. But no matter under what circumstances, by printing proofs to check the problem is a relatively safe way.
Toner coverage In normal circumstances, the toner in the sheet of paper within a given region does not exceed 320% of total coverage, which means after printing four colors overprint the total can not exceed 320% toner coverage.
From a technical point of view, we can let each primary color toners are 100% coverage, but
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