Product Packaging Appearance Image Information Digitization and Database Technology (I)

[Abstract] This article mainly elaborates the digital processing method of product packaging appearance image information and the processing method of product packaging appearance image information. Through the database technology, it analyzes the establishment of the product packaging image database model and the required technology, which is the product packaging appearance image information. Store, search and provide corresponding technical support.

Keywords: product packaging; image processing; database

Packaging in the national economy supporting services industry, occupies an important position, packaging product design, can not be separated from the packaging products, materials, colors, images and text descriptions. Appearance information of product packaging design, how to use computer technology, image technology, database technology for processing and storage is the current work of packaging industry information must be carried out. Computer processing objects are numerical, image, sound, and other information. The product packaging appearance image information must be a digital sequence that can be processed by the computer in the representation of the computer. Digital image processing for the appearance and appearance of the product packaging is to use a digital computer or other digital hardware to perform some mathematical operations on the electrical signals converted from the image information to improve the practicality of the image. The appearance information of various product packages has become a resource that can be used together. Therefore, an architecture is needed to accommodate internal and external data information in various formats, including historical data, current data, image information data, etc. A Corresponding Database Technology to Store and Access Product Packaging Appearance Data Information

1 Product Packaging Appearance Image Information Digitized

1.1 Digitization of image information

At present, computer operations and storage information are all performed in binary mode. In general, each color image can be composed of three primary colors of red (R), green (G), and blue (B) in a computer. Each primary color represents a range of 0-255, and then the three primary colors can be Combined into (256 × 256 × 256) 16.77 million kinds of colors, then, for image digitization in the general case, mainly include:

1) The digitization of image space locations refers not only to the spatial sampling of the image, but also to a whole image segmented by sampling into an array of numerous discrete pixels.
2) The digitization of the image gray scale means that discrete sampling is performed from the continuous change of the image gray scale.

The digitization of image information can now be acquired by a computer and corresponding auxiliary instrumentation equipment. The A/D (Analog/Digital) converter in the instrumentation is mainly used to convert the image analog information into a digital signal that the computer can accept. In actual use, the image information can generally be divided into dynamic image information and static image information, and the camera and the image capture card are used for the dynamic image information; the image information of the product packaging is obtained by operating the static image information with a graphic scanner or a digital camera. And stored in the computer. Therefore, the digitalization of various product packaging appearance image information is essentially how to express image information with R, G, B three primary colors or gray levels in a computer.

1.2 Image Information Processing

In the product packaging appearance image processing, the different expression forms of the product packaging appearance characteristic shape and the product packaging surface color difference, etc. should be different in the processing method, according to the appearance characteristics of the product packaging related image processing.

Image processing is to process the image with various forms of the operator Q, that is, the image processing can be expressed as Q(F). The form of the operator Q is determined by the purpose of image processing and the mathematical model of F. The most basic image can express 3 different mathematical models, namely continuous model, discrete model and random field model. For solving image processing problems, a model based on collection of pixel points is the most basic expression. A two-dimensional image function f(x,y,) is transformed into another two-dimensional image function g(x,y,,) through S, which is the basic form of image processing, as shown in Figure 1.

For image information processing, the image technology used includes three levels of image processing, image analysis (including image segmentation) and image understanding.

1) Image processing is a lower-level operation that performs a large amount of processing mainly at the image pixel level. Image processing emphasizes the transformation between images and performs various processing on the images to improve the visual effects of the images. Such as image enhancement processing, histogram correction, contrast correction, deblurring, smoothing, passivation, correction, restoration and other operations.

2) Image segmentation is an intermediate level operation. Image segmentation and feature extraction transform the original pixel-depicted image into a simpler non-graphical symbol description, and the extracted image features may have edges and regions, and the edge detection and the area segmentation have mutuality. Supplementary features. In actual image information processing, the computer can separate some objects or regions according to grayscale, color, texture, or geometric features to facilitate image recognition and analysis.

3) Image analysis is also an intermediate level operation. The image analysis is mainly the research personnel's analysis and processing of the interested target in the image. It is a research process that the image information enters and the data information exits.

4) Image understanding is mainly high-level operations, basically symbolic operations. Image comprehension mainly refers to the image analysis, based on the further study of the image in the target and the relationship between them and make an understanding of the content of the image, as well as the interpretation of the original objective scene, so as to guide and plan actions. The processing of image information also needs to consider the storage format of the image. Although the storage format of computer-processed digital images mainly includes vector graphics and bitmap images, the image information of packaging materials mainly uses BMP, PCX, GIF, and TIFF. The bitmap image format is stored, and the corresponding image data compression processing can be performed as needed during the storage process.

2 Product Packaging Appearance Image Information and Database Technology

2.1 Database

Data base is a commonly used technology in data management. It is a software tool that saves and manages a large amount of complex data and information by using a computer, that is, a computer software system that stores and manages data according to a data structure. In the use of various product packaging appearance information, a large amount of data and appearance image information need to be stored and managed, and the core of the information management system is a database. In the database system, the data of the information management system is stored in the database, and the management of all data is completed by the DBMS (Database Management System). With the development of database technology, the number of DBMS products available on the market is increasing day by day. A suitable DBMS can be selected according to the needs of the system. According to the size of the database system can be divided into: small databases, such as Foxpro, Access, etc.; medium and large databases, such as MS SQL Server, ORACLE, SYbase, INFORMIX and so on. (to be continued)