Application of digital special effect processing technology for decorating images (I)

[Abstract] Digital processing technology has been widely used in all current industries. Image special effects processing technology has also played a very good role in the design of packaging and decoration. This article introduced the concept of digital images, focusing on the principle of special effects processing technology for packaging and decorating patterns and how to develop the image special effects software.

[Keywords] packaging and decorating, digital image processing, special effects processing

introduction

Today, as the packaging industry thrives, people are increasingly feeling that packaging has brought about ever-changing changes in our lives. This change is not only reflected in the novelty of the model, but also manifested in the diversification of the effects of the package decoration pattern. The design of a flat design of a packaging pattern not only reflects the designer's thoughts, but also reflects whether the society can possess the technical level of grasping the photographic vision that turns ideas into reality. How to better display patterns in front of people depends on the improvement of digital image processing technology.

In the process of understanding nature, mankind learned a wealth of knowledge from the diversities of the world. With the ever-increasing level of productivity, packaging's creative ideas and design ideas have become more and more abundant. Facts have proved that a color and form are beautiful and very new packaging. The sense of value and the strength of advertising information can satisfy the consumer's desire for safe consumption. It is inevitably less than a sense of beauty, ambiguity in the transmission of information, Packages that are inconsistent with the value of the packaging and the value of the goods have a much stronger incentive for consumers. The visual communication and displayability of the package have a good advertising effect for expressing a product effect. In the process of decorating design, the first thing the designers get is not a ready-made good material. The designer can only use the tools to achieve the effect of decorative patterns step by step. In order to make the effect clear and highlight the focus, we can use special effects processing technology. This is the digital image processing technology described below.

1. The basic concept of digital images

Digital Image Processing, also known as computer image processing, refers to the process of converting an image signal into a digital signal and processing it with a computer. At present, digital image processing technology has been widely used in many fields, such as aerospace, biomedical engineering, industrial inspection, robot vision, public security, justice, military guidance, culture and art.

"Figure" is the distribution of light projected or reflected by the object. "Image" is the impression or reflection of the acceptance of the human vision system in the brain. It is a combination of subjectivity and objectivity.

1.1 Digital Image Processing

1) The process of converting an image into another processed image is an image to image process.

2) Convert an image into a non-image representation, such as a decision.

An image is a vivid imitation or description of a similarity to an objectively existing object. It is an incomplete and inaccurate object, but it is a proper representation in a certain sense. Digital image processing is the use of computer systems for digital images for various purposes.

1.2 Computer Graphics

Uses computers to process and display objects (not physical objects) represented by concepts. Focus on generating an image based on a given object description model, lighting, and the imaging geometry of the imaginary camera. Including art creation called "computer art."

1.3 Characteristics of the Image

A color image can be seen as consisting of many points. A single point in the image is called a pixel. Each pixel has a value, called a pixel value, which indicates the intensity of a particular color. A pixel value is often represented by three components of R, G, and B. If each color component of each pixel is represented by a binary 1 bit, then each color component has only two values ​​of "1" and "0". This means that the intensity of each color is 100%, or 0%. In this case, the color displayed by each pixel is one of eight possible colors.

Image attributes include resolution, pixel depth, true/false color, image representation and type, and more. There are two kinds of resolution: display resolution and image resolution. The display resolution refers to the number of pixels that can be displayed on the screen. The more pixels the screen can display, the higher the resolution of the display device and the higher the quality of the displayed image. Each color pixel on the display is determined by the relative intensities of three analog signals representing R, G, and B. These color pixels form a color image. Image resolution refers to the measure of the density of pixels that make up an image. For a picture of the same size, if the number of image pixels that compose the picture is larger, the higher the resolution of the picture, the more realistic it looks. On the contrary, the image looks rough. Pixel depth refers to the number of bits used to store each pixel. It is also used to measure the color resolution of the image. The pixel depth determines the number of possible colors for each pixel of the color image, or determines the number of possible gray levels for each pixel of the grayscale image.

These are the factors that understand basic image processing. Such basic elements are fully understood to solve the access points that require the implementation of the functions. The realization of various image effects is to obtain specific effects based on changing pixels.

(to be continued)