![]() ![]() One disadvantage of raster images however is that they don’t scale very well. At the zoomed in level, it becomes possible to individually manipulate the image one pixel at a time (if you want) using the paint bucket and other tools. I’ve worked a lot with raster graphics, and like the article says, the images are split up into grids of pixels.Īs a matter of fact, if you open up a raster graphic image in a paint program you can zoom in and see the individual pixels. Nowadays of course there are still cameras that have high resolution raster graphic capability you can print at much higher resolution. These pictures were okay on a computer monitor, but if you printed them out you could only print out a small picture because they couldn’t scale up to fill a 4 by 6 or 5 by 7 photo print. ![]() In the early days of digital camcorders with still camera capability, they took pictures in low resolution. ![]() For that reason I just stay with the default resolution of the image. I’ve noticed that myself when I play around with some image editing programs and try to scale up an image. ![]() September 4, - That’s true the raster grid doesn’t look as good when you expand it. A compression program looks for patterns of repetition among these numbers and squeezes the compressed file down to smaller size. The reason is that all of the pixels are essentially just numbers. What I like also about the raster format is that, regardless of the resolution, raster data is easy to compress. He is able to create posters with these images, all with rich color and stunning clarity. My friend has a still camera with something on the order of 12 megapixel resolution for his images. I was then able to scale my small GIF animation to where it filled the whole screen, with no loss of resolution! Talk about an easy way to do an animation. I got a GIF animated raster image, and used a vector image program to convert it from raster to vector format. I did this once and the results were amazing. You can even do a raster conversion where you convert from raster to vector and vice-versa. Unlike the raster image, which stores everything as pixels, vectors use mathematical formulas to compute the lines and curves the upshot is that the final image is completely scalable. The new thing these days is the vector format. Example: screen savers.September 5, - I’d like to point out that the raster image format, with all its pluses and minuses, is not the only kid on the block in this regard. The image is totally under the control of program instructions not under the user. Image is merely the product of static stored program and will work according to the instructions given in the program linearly. it is the computer graphics in which user does not have any kind of control over the image. Non Interactive Computer Graphics: In non interactive computer graphics otherwise known as passive computer graphics. The flight simulator is a mock up of an aircraft flight deck, containing all the usual controls and surrounded by screens on which we have the projected computer generated views of the terrain visible on take off and landing.įlight simulators have many advantages over the real aircrafts for training purposes, including fuel savings, safety, and the ability to familiarize the trainee with a large number of the world’s airports. We can create a flight simulator which may help the pilots to get trained not in a real aircraft but on the grounds at the control of the flight simulator. For example, it helps to train the pilots of our airplanes. Interactive computer graphics affects our lives in a number of indirect ways. In this way he maintains a conversation, or dialogue, with the computer. He can give a series of commands, each one generating a graphical response from the computer. To the user it appears that the picture is changing instantaneously in response to his commands. The computer on receiving signals from the input device can modify the displayed picture appropriately. This helps him to signal his request to the computer. Here the observer is given some control over the image by providing him with an input device for example the video game controller of the ping pong game. Interactive Computer Graphics: Interactive Computer Graphics involves a two way communication between computer and user. Basically there are two types of computer graphics namely. Pixel is the smallest graphical picture or unit represented on the computer screen. Computer graphics is made up of number of pixels. Computer graphics is an art of drawing pictures, lines, charts, etc using computers with the help of programming. ![]()
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