Packaging printing color distortion into obstacle, how to break?

Now, it has appeared many sets of color processing system in the world of printing, the printing color on has the certain control. But now the customer groups increasingly stringent requirements for color, in order to better serve customers, professional manufacturer of flexible packaging packaging specially compiled and distortion to identify the main factors leading to color distortion. One, the main cause of the color distortion 1, color reduction processing color distortion caused by modern printing generally use C, M, Y, K four-color ink reproduce color, purity problems because of the ink itself, thus when printing overprint color distortion. Color printing color distortion caused processing and 2 C, M, Y, K four color ink color copy, collected by computer image information and digital collection equipment generally is R, G, B information, therefore before printing plate need to convert image information into C, M, Y, K method, namely the color separation processing. The so-called & other; Color & throughout; Is the color of each pixel information (images General is R, G, B color information) Decomposition into suitable for printing of C, M, Y, K method color information. In the process of color separation will cause color information away. In color, just according to the ink, thin film, such as printing eligibility, properly set color parameters ( Such as setting outlet extension value, gray balance parameters, black plate order adjustment, etc. ) , perhaps only the output of high quality color piece, as far as possible, reduce the loss of color information. 3, the original manuscript of printing image color distortion are mostly method after taking pictures. About photo manuscript, besides because of wrong operation in the process of taking pictures a color distortion, because the color is a pigment color reappearance of the materials, such as color and color material is easy to occur attenuation, and therefore may cause photo color distortion. In addition, with the continuous popularity of digital cameras, more and more digital image manuscript, and the technical requirement of digital cameras for operators greatly improved, because the operator's technical level is poor, take pictures out images of a brief picture dim and blurred image problems, constitute the original color distortion. 4, scan color distortion caused processing photographs of the original image density is continuous, needs to be collected by computer image information. When using the scanner scans, need to put the image segmentation into discrete pixels, each pixel point on the line by line to collect the original point of R, G, B information. In the process of scanning, will cause the lost of pixel color information, and the image processing is based on image information collected, about the color of the operation is conducted on the basis of this, also does not increase the image color information. About the photo for the manuscript, therefore, scan is a crucial link in image processing, improper operation will cause distortion in image color. Second, how to distinguish colors distortion after have the knowledge of the main factors of color distortion, in the practice produces in the process of how to found the color distortion is the key. 1, the first image benchmark legal person in the eye to color must be adaptability. For color fine distortion image, repeat observation will weaken the ability of recognition. Therefore, in judging whether there is any color distortion, using the first impression to eliminate the limitations of human eye color vision is an important way to found the color distortion. 2, neutral color standards act in life has a lot of neuter color, like black, white, gray, etc. , which is a colorful world of color of the zero point, we can as to identify the basis of color distortion. 3, color standards law of skin color is the color of people know best, every character image, especially is given priority to with portraits of the picture, can according to the color of the skin as according to the difference of color distortion. No matter the yellow skin, white skin or black skin, the skin has a rule, it is that is there. Namely: Huang Zhongyou red, white inside deeply red or dark red, the characters in the image color of skin slants yellow will give people feeling sick. Under normal circumstances, even if the image characters really yellow skin color, also want to adjust for color in color correction, namely Huang Zhongyou red. In printing operations, the distortion if master and difference method, the main factors on the color of the printing can very good control, complete function smoothly meet customer heart. Therefore, mastering we are not allow to ignore to the printing color distortion.