Graphics is the art or science fields. A meaningful symbol using a line, painting, photo, which has the characteristics of obvious gain meaning instantly and correct according to user needs.
Computer graphics is the creation and management of graphics by using the computer, using the computer to create decoration image editor. Or management about images such as film, video, photo retouching, creating the ตามจินตนาการ and the use of graphics in the presentation. . so can convey clear and understand more easily than ever before, such as the presentation of information with diagram or graph. Instead of a grid of numbers. Which is currently using computer graphics with various jobs. Whether it is in education, business, the design of entertainment or the medicine, etc.
The working principle of a graphical image is divided into 2 forms.
Bitmap graphics.
Bitmap is Resolution image Dependent composed of spot colors. With the number of fixed according to create a Resolution or image resolution differently, if enlarge Bitmap will see that there is a small table Each bit is part of computer data.
Because Bitmap was Pixel constant consequently there are limitations in expanding the image size. Change image size by increasing or decreasing the Pixel existing when the bigger. The resolution of image is reduced. And if the value greater resolution, it will make the file is large and consumes more memory space as well. Image extend grow up to see is a square grid tiles made of beautiful.
The picture is suitable for Bitmap graphic in a desired lighting in detail. Files are suitable for working with a real photo, because Bitmap type is Channel special called Alpha Channel which is 32 bit. Or true color is unreal colors such images used with PhotoShop's portrait photos because the file from PhotoShop is Bitmap. While the file created from the Illustrator like cartoon or paintings, because as a Vector also suitable for image.