Computer Graphics and Multimedia is a field that focuses on the creation, manipulation, and representation of visual and interactive content using computers. It involves generating images, animations, and videos through techniques like rendering, modeling, and animation. Multimedia integrates various forms of media, such as text, audio, graphics, and video, to create engaging and interactive experiences. Applications include video games, virtual reality, film production, web design, and simulations. This field combines computer science, art, and design to innovate and enhance digital communication and entertainment.
42 questions and answers
Boundary Fill Algorithm starts at a pixel inside the polygon to be filled and paints the interior proceeding outwards towards the boundary. This algorithm works only if the color with which the region has to be filled and the color of the boundary of the region are different.
Given a rectangle, your task to fill this rectangle using flood fill algorithm. Examples: Input : rectangle(left = 50, top = 50, right= 100, bottom = 100) flood( x = 55, y = 55, new_color = 12, old_color = 0)
Midpoint ellipse algorithm plots(finds) points of an ellipse on the first quadrant by dividing the quadrant into two regions. Each point(x, y) is then projected into other three quadrants (-x, y), (x, -y), (-x, -y) i.e. it uses 4-way symmetry.
Generally, Computer animation is a visual digital display technology that processes the moving images on screen. In simple words, it can be put or defined as the art or power of giving life, energy and emotions etc. to any non-living or inanimate object via computers.
The CRT Monitor display by using a combination of phosphors. The phosphors are different colors. There are two popular approaches for producing color displays with a CRT are: 1.Beam Penetration Method 2.Shadow-Mask Method
It is a process of changing the angle of the object. Rotation can be clockwise or anticlockwise. For rotation, we have to specify the angle of rotation and rotation point. Rotation point is also called a pivot point. It is print about which object is rotated.
It is a transformation which produces a mirror image of an object. The mirror image can be either about x-axis or y-axis. The object is rotated by180°. Types of Reflection: Reflection about the x-axis
Once object description has been transmitted to the viewing reference frame, we choose the window extends in viewing coordinates and selects the viewport limits in normalized coordinates.
Clipping
When we have to display a large portion of the picture, then not only scaling & translation is necessary, the visible part of picture is also identified. This process is not easy. Certain parts of the image are inside, while others are partially inside. The lines or elements which are partially visible will be omitted.
It is used for clipping line. The line is divided in two parts. Mid points of line is obtained by dividing it in two short segments. Again division is done, by finding midpoint. This process is continued until line of visible and invisible category is obtained. Let (xi,yi) are midpoint
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