Modern packaging design is a branch of art, but it is not a pure art. Different from ordinary art, packaging design is a practical art, which is similar to art and has its own specific means of expression. It should not only be beautiful and reflect artistic value, but also be practical, serve the goods and better reflect the value of the goods. Generally, the following points should be paid attention to when designing: pay attention to the combination of form, function and material. The three-dimensional modeling of packaging design and the plane treatment of each display surface must combine functions and materials. Form should first meet the requirements of content protection and usability, and at the same time pay attention to the combination of morphological changes and physical and chemical properties of selected materials. We should prevent ourselves from consciously falling into blind formal games in design and form for the sake of form. Improper use of form will weaken the power of form and even have the opposite effect. Pay attention to the transmission of commodity information and the filling of packaging, which can be said to be advertising the content. Attention should be paid to the conveying function of packaging in design, and the content and characteristics of goods must be clearly and accurately conveyed. If the packaging of handkerchiefs is mistaken for the packaging of socks, then no matter how beautiful and novel the decoration form is, it will also fail. Of course, there are beauty and ugliness in formal treatment. It is hard to imagine that a package without formal beauty will be attractive. However, the performance of this kind of beauty should first come from the performance and development of commodity beauty. Cosmetics and hardware have their own beauty; Orange juice is beautiful, and ink has its beauty; The scientific beauty of electronic calculator and the decorative beauty of novel clothes. These can be resources in the form of exquisite packaging. The beauty of shape, structure and material of various commodities can be expressed and brought into play in the treatment of packaging formal beauty, which is an important basis for the treatment of packaging formal beauty. Pay attention to different consumers, aesthetic comprehension. The uniqueness of packaging form can not be separated from the general understanding of consumers. Beauty and ugliness refer to people's subjective factors in feelings. People of different ages, genders, cultures, occupations, nationalities, countries and regions often have different aesthetic tastes. The packaging forms of children's toys and old people's products, and the packaging forms of men's products and women's products must be very different. Due to the differences in occupation and culture, some people like bright colors, while others like simple colors. It is also purple, some people think it is luxurious, others think it is mysterious. It can be seen that the general packaging form cannot be required to adapt to all people in society, and the design should be handled according to the specific understanding of consumption. Pay attention to the timeliness of aesthetic changes. The so-called temporality refers to the broad sense of time, year, season and specific time period. People's aesthetic tastes often change with time, and designers have to be very sensitive to them. It is not uncommon for the changes of time to bring about aesthetic changes with some opposite characteristics. The aesthetic standards popular in one stage will go to the opposite in the next stage. Judging from the influence of the development and change of the times on aesthetics, this is very important. What was emphasized in the past was a balanced and harmonious style. Today, it is more sensitive, more dynamic, more powerful and more diverse. In modern design, it has become a trend to break the routine, flatten the layout, and create an original and energetic aesthetic feeling. In the past, the complicated style of "carving dragons and carving phoenixes" and "rococo" has been replaced by the concise and lively style in modern design. Especially some time-sensitive goods, such as winter goods, holiday goods, commemorative goods, cosmetics and so on. , put forward more specific timeliness requirements for packaging, and have to be treated specifically in form. Pay attention to the locality of aesthetic changes, and the aesthetic customs in different places are different. Japanese people don't love lotus, but there are various lotus images in China folk art; In our country, folklore regards owls as ominous things, while in some European countries they are regarded as a symbol of wisdom. China often takes yellow as the color of wealth, while Islamic regions regard yellow as the color of death. In Egypt, blue is often used to describe the color of the devil; Red tricolor is a symbol of toxicity in the Czech Republic; Green is a symbol in Turkey. These are the customs of some different places. China has a vast territory, and the east, south, west, north, China, urban and rural areas, coastal areas, inland areas, ethnic minorities and Han people have different feelings about formal beauty. Therefore, packaging design should adapt to the choice and acceptance of consumers in different places, so it is necessary to carry out corresponding investigation and research. In particular, some products themselves have strong local characteristics, and their packaging design should pay attention to the performance of this local characteristic. For example, Longjing in Suzhou and Hangzhou, Huadiao wine in Shaoxing, ceramics in Jingdezhen, palace cakes in Beijing, Chinese herbal medicines, chopsticks and Four Treasures of the Study. , should fully reflect the local flavor and national characteristics in the form of packaging design. Paying attention to the comparison of packaging forms and packaging designs of similar commodities is an important part of packaging design. On the basis of the above points, the design should clearly emphasize uniqueness and ingenuity, and strive to design novel and unique packaging. Judging from the trend of world packaging, the 1930s and 1940s tend to have uniform and complicated decorative effects, while the 1950s and 1960s tend to be simple and simple. From 1970s to 1990s, there was a new development momentum. On the basis of simplicity and lightness, the decoration form paid more attention to diverse and loud advertising performance. It goes without saying that packaging design, as a means of product promotion, must pay attention to the competitiveness of design and seek innovation and change. As for the traditional packaging style of some products, we don't make sudden changes, just to maintain their sales stability. Once this stability is shaken, it must be updated in time. Therefore, the form of packaging should be significantly different from similar designs. Pay attention to the diversity of forms and means. When we watch a packaging design work, it is not a simple visual acceptance, but must be accompanied by visual communication to produce a certain psychological reaction, which is called "vivid", "noble" and "exquisite". First of all, we should look at the objective situation of the audience, not only graphics and colors, but also three-dimensional modeling, material texture, structural style, processing technology and so on. These different factors form the visual attraction of packaging design. If one of them is not done well, it will weaken this attraction. Therefore, in order to realize the beauty of decoration, modeling, structure, material and technology, designers are required to have various treatment methods, have certain knowledge of materials and technology, and strive to understand new information in time. Resolution and size Resolution and size are more confusing than almost anything related to scanning and input. What role does resolution play in digitized images? What kind of input resolution should I choose when scanning the original image? How high resolution is enough to ensure high-quality output, and what resolution is not too high? When is the best time to resize an image and what is the best way to resize an image? What is the resolution? Wait a minute. What is resolution? If all the terms in the field of digital imaging are regarded as actors, then in terms of universality, "resolution" can win an Oscar. No matter what the "dress-up" and "function" of resolution is, one of its most basic facts is that it is always used to describe the quantity or density of digital information, so any discussion about resolution can not be separated from the characteristics of pixels and grids, which are the basic components of scanning equipment or output equipment to reproduce raster images. Now let's discuss the properties of pixels in the digital imaging environment. The original gray-scale or color photos all have continuous tones, that is, there is a smooth transition between adjacent colors or shadows, but the computer can't understand anything continuous, the information is divided into independent units that can be processed, and pixels (graphic elements) are the smallest units that can be used to measure image data. The complexity of all digital image reproduction lies in the use of these individual, discontinuous small elements to simulate continuous tones. Each pixel in a raster image has four basic characteristics: size, hue, color depth and position, which are helpful to define the resolution from different angles. All pixels in the same image have the same size. At first, the pixel size was determined by the resolution used when scanning the image, that is, capturing the image digitally. For example, a scan resolution of 600ppi means that each pixel is only one sixth of an inch. The higher the input resolution, the smaller the pixels, which means that each unit of measurement has more information and potential details, and the tone looks more continuous; The lower the resolution, it means that the larger the pixel, the smaller the detail of each unit of measurement, so it looks a bit rough. The combination of pixel size and number in an image determines the total amount of information it contains. You can change the pixel size by changing the resolution at any time during the production process. If your output is used for printing, modifying the resolution will automatically change the size of the printed content. A tracker or filmless camera assigns a color or gray value to each pixel in an image. When the pixels are small, the color or tone of adjacent pixels changes little, which will cause the illusion of continuous tone. Images scanned by devices with low noise figure and wide dynamic range will appear very natural continuous tones, because they include a particularly wide tone range from light to dark. Tip: Details in an image are functions of pixel size and hue range. The pixel size is directly related to the resolution, while the hue range is determined by the dynamic range of the scanning device. Only one value can be assigned to a pixel, and the bit depth or color depth of a digital device determines how many potential colors or tones can be used to assign values. Although each extra bit can increase the smoothness of the transition between adjacent colors and tones, it requires more file storage space. A raster image is just a grid containing many independent pixels, and each pixel has a definable horizontal and vertical position within the grid. In most major image editing programs, the coordinate position of any pixel can be obtained by moving a tool called eyedropper on the map. The physical size of the grid is determined by the total number of pixels and the resolution, which in turn determines the relative position of each pixel. It is not easy to complete a successful packaging design. It requires the combination of artistry and practicality, and the value of goods should be fully considered. It is both a part and an extension of art. ..