Various processes of printing quality of the printing (on) – print, process, pri
Print There are many processes to get a good print, must be no problems for each process it; the other hand, there is a process with slip, can not get high-quality print. Breakdown of the printing process if a scan, Workgroup Edition Make , The film , Proofing , Plate burning, and printing. Below, I will introduce one by one on each process, to discuss with you.
1, scanning Original level of quality and use of color is an important factor restricting the printing quality. In the original color selection and use of color, the color on the satisfaction Plate Printing requirements, has become a major factor in the overall print quality. In particular, photos, ignoring the printing plate requirements directly affect the overall quality of printing. Long points clear picture is painted of the pen, colorful, rich layers, clear vivid picture, to the readers of beauty. Hard to imagine a group of color cast serious lack of tone level, virtual hair deformation manuscript will print beautiful effect. Poor quality of the original, though you can handle, but to be clear, the picture information can only be picked up in the original basis of the information, but can not be recycled information. Adjustments will be significant loss of each level color information.
Here, on the original photos used to make the following request that the exact color, size medium, structured, good definition, not virtual barren, colorful, color-rich, accurate and realistic; contrast medium, the level point Cloth Uniform; handouts for second best original cable more than 150 projects printed materials, and best not to enlarge the use; network to download photo-level low over-sharpening, color are not allowed, the number of pixels is low, should be used with caution. Finalized manuscript, that is, how to scan and process the problem. Original type, level range of different content, colors vary, copied the same style to meet the printing requirements of the photo, is the center of scanning and processing tasks. The basic principle of this work is: faithful to original, higher than the original and seeks unified style.
Picture scan is the first image process, is loyal to the original concrete steps, the printing quality of the picture is conclusive. Faithful to the original as possible, to maximize the degree of fidelity to the original text, depending on the original scan to determine the appropriate environment. Manuscript should be carefully analyzed, such as the original type, level range, black and white field, color, content, use the location, use the size. Some Scanners Analysis function with the original, full use can play a multiplier effect. While also analyzing the shortcomings and deficiencies and the original understanding of the intention of editing, special requirements in order to adjust the scanning and adjustment and compensation. It should be noted, original analysis is an important task before scanning. Scanner parameter settings affect the information picked up a fundamental condition. Scan scanning software must first be members of the various parameters have a clear understanding of, and aware of their impact on the case print quality. Secondly, based on the original case, print the situation carefully set each parameter.
Mainly in image processing to master the following:
1. Picture level adjustment. Level adjustment has two purposes: First, the network expansion in the printing process to compensate, will be mainly concentrated in the 10% level to 60% of the visual sensitive areas, the adjustment process is to maximize the tone manuscript and can re-order phase modulation corresponding to the printing in order to make the image clear and true; the other hand, based upon the content and level of distribution of visual responses to adjust the high, medium and low-key level.
2. School colors. Color reproduction of original school is reflected in (rather than the manuscript itself) color. In the operation, mainly from the original master to correct the color cast caused by or scan to ensure accurate color of the main parts, the basic color to ensure accuracy. Schools must first ensure that the screen color adjustment effects and adapt to the effects of the printing unit. School color images should be valued not only by the specific parameter value display.
3.RGB to the CMYK format. Print out the image format used by film must be CMYK format. The color separation parameter will directly affect the printed results. Separation parameters of the scope of the black version generates the maximum Ink Volume, color separation model, dot gain and so very important, need to be changed according to printing conditions, printing should be in good condition with.
4. Sharpening. Sharpening is an effective means to improve image clarity. Sharpening too small level plain, much of the level will be too innovative. It should be noted, the content is different on different sharpening requirements. Such as the landscape can be smaller, while larger vessels can. View from the screening process, sharpening also eliminate the screening level of losses arising from the role. At this point, is do not can not do sharpening process, but necessary process of dealing with pictures.
2, Workgroup Edition production Group is for photo-text version of an important process, group version of standardization is to ensure and effective means to improve quality. This process on the quality of the major Table Now:
1. Text, images, blocks of color gradient operation is not standardized, so that page too crowded or too loose there affect the overall aesthetic.
2. As the screen printing results and the actual colors used in different modes of resolution and visual effects arising from differences in print results and imagination led to discrepancies.
3. Small number or small set of lines combined with the emergence multicolor overprint ghosting.
4. Direct use RGB format images into black and white group version of Er Shi.
5. In the group during the tension-compression version of photo quality images Ershi poor output slow. In particular, to enlarge image, a great impact on the image effect. Therefore, the group version should be strictly in accordance with the standardization requirements. Must be CMYK format such as pictures, pictures Foot Photoshop inch change shall be, not for tension and compression, deformation, image, text block, blocks of color space to a standardized and unified; text kerning generally do not change, so beautiful layout.
[Keywords]: Print Process Printing Quality Comment Large In Small
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