What raster pictures are:
At present, raster painting in the contemporary application is more and more extensive, raster painting is worth our good study, now we have an in-depth understanding of raster painting, I hope this article can have a relatively large reference value for readers.
Raster introduction
When watching a stereoscopic film, the audience needs to wear a pair of special glasses to make them feel as if they are on the scene. The function of the glasses is to make the parallax images captured by the two cameras enter the left and right eyes of the person respectively.
Raster stereoscopic painting is the same as stereoscopic film, only with raster instead of glasses, without the audience wearing glasses encumbrance.
Grating three-dimensional painting is mainly composed of two parts, grating and sampling image sampling figure is by two or more parallax images according to certain rules in the synthesis of special image, grating can make the parallax image separation, the adhesive assembly to form a three-dimensional painting, people looking at the pictures, can be seen in a plane can be directly a three-dimensional stereogram, painting things can protrude from the picture, can also be hidden, lifelike, lifelike, even with animation, give people a strong visual impact.
However, in the common planar graph, because what enters the eye is an image with exactly the same Angle, the vision and brain cannot extract the three-dimensional sense of space in the real sense of the object on the picture, and cannot reflect its three-dimensional relationship.
There is an essential difference between stereoscopic painting and planar image, which reflects the two-dimensional relationship between the top and bottom of an object and the left and right sides of an object. Although people also have a sense of stereoscopic drawing when they see a plane, they only use light and shadow, virtual reality and contrast between light and shade to reflect it. The real stereoscopic painting is made by simulating the parallax of human eyes and the principle of optical imaging.
Three-dimensional painting has been popular in Europe and the United States for many years, because of its unique three-dimensional decorative effect is favored, in 1999 began to enter the Chinese market, early because of the high cost of materials and technical factors lead to high prices, limited the pace of development of three-dimensional industry.
In 2000-2001 gradually developed, the current stereoscopic painting market prospects are getting better and better.
The three-dimensional sense gives people a real sense of space, with a strong visual impact, and the sense of layers presents the effect of overlapping distinct layers of the image. If the two are combined, the picture will not only have rich layers, but also have a strong visual space.
The original stereoscopic image (stereoscopic painting), is the use of two lens stereoscopic camera shooting, developed film with stereoscopic viewing mirror to watch, in the 1950s and 1960s is very popular, but because can not get rid of the stereoscopic viewing mirror and gradually disappeared.
In the 1990s, with the progress of grating stereo technology, stereoscopic viewing has got rid of the bondage of various stereoscopic special glasses. Stereoscopic pictures made by stereoscopic color expanding silversalt photography have achieved unprecedented accuracy and effect, and are popular in the United States.
The production process is as follows:
Shoot with multi-lens stereo camera → out of stereo film → use raster paper for color expansion → obtain stereo photo finished product
It allows the eye to see up and down, left and right, front and back.
It's really a stereoscopic picture in the visual sense.
classification
At present, there are mainly the following kinds of digital stereo pictures:
(1) 2D: such as change, zoom, rotation, animation, etc., often used in advertising, holiday decoration, calendar, calendar, stationery, postcards, promotional products, business CARDS, etc.
(2) 3D stereo class: through photoshop or 3D layered software, after the picture is produced, the raster is added again, so that it produces the spatial distance before, in, after, each layer is a layer structure, is a kind of imitation stereo effect.
Is the current wedding photo, children according to the mainstream of the three-dimensional market.
(3) turn three-dimentional class: use the plane three-dimensional software, using hierarchical interpolation enhancement processing technology, the edge of the edge of each layer in depth continuously, eliminates the false three-dimensional layered body, the foreground and background of flake feeling, make a contour smooth transition, the three-dimensional images of thick, almost can achieve the effect of stereo camera.
(4) comprehensive effect category: comprehensive effect category is a three-dimensional advanced creation means, it is three-dimensional 2D, 3D effects, three-dimensional photography and other performance means interweaving and applying in one, designers can according to their rich imagination, creative out of the kaleidoscopic three-dimensional effect.
Production methods
The advantages of optical synthesis method are good stereoscopic effect and fast production, and its disadvantages are that the initial investment is too large, inconvenient to produce large stereoscopic photos.
The emergence of stereo image technology is in the field of image color instead of black and white again after a technical revolution, the image technology from 2 d plane to the three-dimensional, like a black and white photos to color photographs, from color to digital, accepted by the world step by step, it is a kind of inevitable trend, is inevitable trend of development of image industry, three-dimensional image industry will be the gold industry in the 21st century.
There are several methods of making stereoscopic pictures, the more common are the following three methods: plane photo stereoscopic method, a shooting method, orbit shooting method.
(1) plane photo stereo method, its production principle is that an ordinary plane photo with photoshop layered processing, transferred to the stereo software for composite output printing can get a three-dimensional photo.
The original stereoscopic drawing method is done in layers with photoshop, the characteristics are: before and after the layer is clear, stereoscopic sense is stronger, the disadvantage is: the object of each layer itself has no stereoscopic sense, easy to produce a feeling.
It makes sense to call it "false stereo".
Now most of the digital stereo photography technology training is this method.
(2) one-shot shooting, that is, the use of multi-lens stereo camera, digital stereo camera directly shooting.
Generally, the price of a low-end stereo camera is 20,000 to 30,000 yuan.
(3) orbital shooting method, the biggest advantage of this method is that ordinary camera can be used to take stereo photos, stereo effect is almost the same as the shooting method, but this method is only suitable for shooting still life or scenery, not shooting people, because this method to take a stereo photo needs to take 5-6 negatives.
Raster painting use range
Stereo technology application range is extremely broad, can say without exaggeration: as long as there is the place that the image USES, there will be the use of stereo technology.
Business card printing industry: cartoon CARDS, business CARDS, greeting CARDS, notebook cover, mouse pad, calendar, calendar, etc.
Small decoration industry: mobile screen map, lighter map, key chain map, toy decoration and other kinds of commodity fun map.
Advertising industry: outdoor, indoor light box advertising, posters, posters, counter dynamic advertising, signs, three-dimensional crafts, promotional CARDS and other products display advertising.
Photography industry: wedding photos, portrait photos, landscape pictures, scenic spots, decorative paintings, religious picture frames, and other kinds of photographic products.
Interior decoration: family, all kinds of business places use decorative paintings, murals, screens, etc.
Three-dimensional product packaging: exquisite product packaging, with a huge market share.
Product promotion: small crafts, preferential CARDS, membership CARDS, VIP CARDS, corporate image card.
Exhibition display: logo, image, display board, signage, etc.
Toymaker: children's favorite drawing card, etc.
Tourism: tickets, craft paintings that reflect local folk customs.
Anti - counterfeiting: anti - counterfeiting trademark, anti - counterfeiting CD cover, VIP card, brand license label, all kinds of anti - counterfeiting license, etc
Materials: PVC 3D soft film, mobile phone case, bag, bag, vamp, table mat, desk calendar, 3D postcard, etc