In recent years, due to the development of digital printing, people have had an impression that the color of printed matter is not as stringent as in the past. From the point of view of the printer, the colors that could have been successfully completed cannot be reproduced. Although there may be reasons for the lower costs of employers and the technical conditions of the platemaking and printing companies in this area, there is another reason that printers may also pessimistically believe that the problem cannot be solved because of digital technology.
Nowadays, the processing of image data tends not to take into account printing-related requirements and directly converts from RGB to CMYK. In order to produce high-quality prints from a professional perspective, it is necessary to construct an RGB data workflow and adopt the CMYK data conversion method that is most suitable for printing requirements.
Past platemaking technology is a technology that needs long-term accumulation. For example, in order to reproduce the bright part of the skin, the Japanese skin takes M15% and Y20%, and the European and American take M20%, and the white light on the eyeball is cut off.
Even if digitalization has been achieved in the process, it is necessary to make good use of the accumulated technologies and perform correct RGB-CMYK data conversion to achieve high-quality printing requirements.
1 RGB data processing
The so-called RGB data processing refers to using RGB data as prepress worker data, and the data is converted and adjusted to satisfy CMYK printing data. Specifically include: 1). CMYK conversion operations of RGB data; 2). Calibration operations (digital cameras, displays, output devices, storage media, etc.); 3). Image processing operations (color correction, image synthesis, tone conversion, Image correction, etc.) 4). Color management (prediction of output results based on digital data, etc.), etc.
In order to do RGB processing, photographers, designers, and plate-making companies are required to distinguish their respective responsibilities and formulate RGB data processing standards accordingly. It is important to clarify the conversion rules.
Prepress companies should set up departments that inspect incoming foreign RGB digital manuscripts in order to transfer the appropriate data to the next process as required.
2 The Necessity of RGB Workflow
In order to realize the processing of RGB data, it is necessary to construct a workflow corresponding to RGB image data. Now that the number of digital camera RGB manuscripts has increased, it is necessary to meet this demand.
Through the implementation of the RGB workflow, the responsibility and workload of photographers, designers, etc. can be reduced, and the occurrence of quality accidents can be reduced. In addition, the delivery period can be shortened and the cost can be reduced. If the image data is made into a database, in addition to improving the work efficiency, the image data can also be used twice.
3 Benchmarking of RGB Workflows
In order to construct an RGB workflow, it is necessary to provide the cooperation of the employer of the manuscript. Therefore, it is important to propose a standard. The following are specific examples.
1). Requirements for photographers
Versions above photoshop6.0 must be used for display calibration. Do not convert RGB image data to CMYK data. If you need to make large changes to the color, please give the prepress company a resolution of 350dpi in RAW data format.
Provide data content records (photographer, use software, color space, resolution, sharpening, etc.)
When the print size is A4 size, a camera with an image of 6 million or more must be used to photograph the skin that requires high quality, such as skin photography. The camera is required to have a camera size of 12 million or more.
2). Requirements for designers
The monitor must be calibrated. The color correction and color management of RGB image data is not converted to CMYK data image. The pre-press company is responsible for completing the layout of continuous spelling, imposition, etc.
4 CMYK conversion from a professional perspective
For CMYK conversion, the color settings made according to the graphic must be changed. The conversion job itself is very simple and originally meant to “reproduce the desired color, how to convert to obtain high qualityâ€, but this is a professional technical problem. In order to reproduce the colors approaching the RGB image, density adjustment and gradation adjustment are required, and techniques are applied in the CMYK color space to obtain the desired color. Here are some key points for obtaining high-quality color reproduction:
1. At the same time as adjusting the generation of black prints, perform conversion operations (make it possible to print clear black text, adjust gray balance, approach original colors, pursue details, etc.);
2. Because the problem of inaccurate printing plates sometimes occurs, trapping is performed (making the background less visible).
In the case where the image data or the background of the second point has a gradation, it is difficult to prevent inaccurate printing plates, and a skillful technique is required. This kind of work can be said to be a professional job.
Quiet airplane spinner wheels and an adjustable 3-level 100%pure aluminum telescoping handle allow you to quickly maneuver in tight spaces and it`s sturdier than most of the telescoping handle on the market. The unique shaped multi-directional 360°silent wheels will not make any noise when being rotated and it`s more durable in structure.
PP(polypropylene)material,high hardness and lighter hard shell , Eco-friendly and featured finish to prevent against scratches, an innovation material in hard luggage industry. Unique streamline design to get your luggage stand out in the crowd.
With side-mounted TSA locks, you can make sure that only you or a TSA agent easy access to your belongings when traveling.
Make packing clothes easy with the fully lined interior and the multi-use organizational pockets. 20inch and 24inch luggage is perfect for business and personal travel, 28in is expandable add 15% to the scalable space.
Superior wheel control - Constant design and testing ensures the performance of our wheels lead the industry
Virtually unbreakable PP - Exclusive IT luggage design combined with strong material provides the best protection
Pp Luggage,Business Zipper Luggage,Business Travel Suitcase,Pp Trolley Suitcase, large luggage, mens luggage, hand carry luggage, travelers choice luggage
Zhejiang Yinglin Luggage Co. Ltd , https://www.yllcluggage.com