The handling of landscape manuscripts in prepress production

(This article is an original article from Bisheng. It is forbidden to reprint, and reprinting must be corrected)

Among the printed manuscripts, there is a kind of manuscripts that use a lot-landscape manuscripts. In general, this type of manuscript requires strong contrast between color and light and dark, higher color saturation, longer tone, and no longer black version, so the printed matter produced in this way has a good effect.

For the color separation of landscape manuscripts, the black version only plays the role of outline. Usually, the middle and dark parts are heavier, and the level of this part is expressed. The main colors are through the cyan, magenta, and yellow versions. appeared. Normal normal landscape manuscripts mainly focus on bright and middle tones, and at the same time require good color saturation. Therefore, when making landscape manuscripts, we can appropriately sacrifice some of the dark tone levels, and make the middle and bright tone layers rich in color. Bright. When processing landscape manuscripts, another important point is clarity. During production, some sharpening needs to be added to strengthen the small changes of the objects and make the scene clear.

Some landscape manuscripts are mainly based on color, which needs to ensure the vividness and contrast of colors. In landscape manuscripts, the sky is generally handled, and the sky is expected to be blue. The yellow version should be as small as possible. The black version should not have dots. The main color version is the green version, especially the clear sky. Please pay attention to the treatment of the grass in the manuscript. The main color version of the grass is the green version and the yellow version. The yellow version is generally larger than the green version. The degree of the yellow version depends on the season. Generally, the spring grass is green and yellow. There are more versions of the Daqing version, up to 50% to 60%. When the grass reaches the end of summer, the green becomes darker, and the gap between the blue version and the yellow version becomes smaller, about 20%, and the magenta version has certain outlets. .

When processing landscape manuscripts, it is also important to observe the photographing of the manuscripts. For originals in different situations, the processing method is also different. Below we analyze three different situations.

1. Overexposed originals

The characteristics of this type of manuscript are that the main body of the image is concentrated in the bright and medium-bright parts, the dark tone level is small, the density is small, the contrast is insufficient, and the color saturation is insufficient, and the image looks white and bright.

When processing such manuscripts, it is necessary to pay attention to the processing of midtones and midtones. The density of midtones and midtones should be increased, which increases the contrast of the image, and enriches the gradation, and the color saturation will also be corresponding. Improved.

2. Underexposed originals

The characteristic of this type of manuscript is that the main body of the image is concentrated in the middle and dark tones, the overall is dark, the density is too thick, and the dark tone is more powerful.

The processing of this type of manuscript mainly needs to brighten the image as a whole, reduce the density of the midtones and middark tones, and reduce the midtones by a part to enrich the midtone tones. During the adjustment process, you must always pay attention to the changes in the highlights. , Be careful not to make the area of ​​the insulation part too large.

3. Normally exposed original

This type of manuscript has normal image levels, high contrast, good hue saturation, and bright colors, making it an ideal manuscript. When processing, normal calibration is sufficient. It is necessary to pay attention to sharpening, do some edge sharpening, or do some Unsharp Mask to enrich the subtle levels of the image.

In fact, when dealing with landscape manuscripts and other types of manuscripts, it is necessary to pay attention to the setting of black and white field dots and the control of gray balance. Generally speaking, according to the characteristics of landscape manuscripts, the percentage of dots in the white field is: 3% for C version, 2% for M version, 2% for Y version, and 0% for K version; the percentage of dots for black field is: 95% for C version and 90 for M version %, Y version 90%, K version 85%.

The black and white field is set correctly and normal contrast can be obtained; the gray balance is controlled well to avoid color shift. These two points are very important for image processing. Only by doing these two points can you get a good image.

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