It can be achieved by replace a long sequence of the same symbol by a shorter sequence of a symbol. Read the message. Check the first character with the next character. If it is same, then increment the count and check the next character. Display the encoded message 34 Mr. Objective: - To perform animation using any animation software.
Description: Animation is anything that moves on your screen like a cartoon character. Time sequence of visual images on a scene. It can be achieved by using animation software like Swiss, flash Algorithm: Motion Tweening Step 1: Create an object in the first layer of first key frame. Step 2: Create the last key frame and move the object to it. Step 3: Right click on the first key frame and select create motion tween. Step 4: Play the picture. Shape Tweening Step 1: Create an object in the first layer of first key frame.
Step 2: Create the last key frame. Step 4: Change the shape of the object at the last frame. Step 5: Play the picture. Guide Layer Step 1: Create an object in the first layer of first key frame. Step 5: In motion guide draw your guide line. Step 6: Play the picture. Masking Step 1: Create an object in the first layer of first key frame Step 2: Add new layer and draw the shape of the view. Step 3: Add the motion guide to the view tool.
Step 4: Right click on the second layer view layer and select mask. Objective: - To perform basic operations on image using any image editing software. Description: Adobe Photoshop is a graphics editing program developed and published by Adobe Systems. Photoshop is a tool that helps design sequences for videos and films by removing the guesswork for film and video professionals.
Procedure: The Brush Popup Palette Allow quick, convenient access to a range of standard, preset brushes. The Brushes Palette Provides access to a wide variety of options for controlling the appearance and characteristics of brush. The Pencil Tool Used to draw free form lines. These draws with the foreground color. The Paint Bucket Tool Used to color pixels with the foreground color on the tolerance setting.
Cropping An Image Digital editors are used to crop images. Cropping creates a new image by selecting a desired rectangular portion from the image being cropped. The unwanted part of the image is discarded. Image cropping does not reduce the resolution of the area cropped. Removal of Unwanted Elements Most image editors can be used to remove unwanted branches, etc.
Sharpening And Softening Images Graphics programs can be used to both sharpen and blur images in a number of ways, such as unsharp masking or deconvolution. Output 41 Mr. What is scan conversion? A major task of the display processor is digitizing a picture definition given in an application program into a set of pixel-intensity values for storage in the frame buffer.
This digitization process is called scan conversion. Write the properties of video display devices? Properties of video display devices are persistence, resolution, and aspect ratio. What is rasterization? The process of determining the appropriate pixels for representing picture or graphics object is known as rasterization.
Define Computer graphics. Computer graphics remains one of the most existing and rapidly growing computer fields. Computer graphics may be defined as a pictorial representation or graphical representation of objects in a computer.
Name any four input devices. Four input devices are keyboard, mouse, image scanners, and trackball. Write the two techniques for producing color displays with a CRT? Beam penetration method, shadow mask method 7. What is vertical retrace of the electron beam? In raster scan display, at the end of one frame, the electron beam returns to the left top corner of the screen to start the next frame, is called vertical retrace of the electron beam. Short notes on video controller? Video controller is used to control the operation of the display device.
A fixed area of the system is reserved for the frame buffer, and the video controller is given direct access to the frame buffer memory. What is bitmap? Some system has only one bit per pixel; the frame buffer is often referred to as bitmap.
Differentiate plasma panel display and thin film electro luminescent display? In plasma panel display, the region between two glass plates is filled with neon gas.
In thin film electro luminescent display, the region between two glasses plates are filled with phosphor, such as zinc sulphide doped with manganese.
What is resolution? The maximum number of points that can be displayed without overlap on a CRT is referred to as the resolution. What is horizontal retrace of the electron beam? In raster scan display, the electron beam return to the left of the screen after refreshing each scan line, is called horizontal retrace of the electron beam. What is filament? In the CRT, heat is applied to the cathode by directing a current through a coil of wire, is called filament.
What is pixmap? Some system has multiple bits per pixel, the frame buffer is often referred to as pixmap. Write the types of clipping? Point clipping, line clipping, area clipping, text clipping and curve clipping. What is meant by scan code? When a key is pressed on the keyboard, the keyboard controller places a code carry to the key pressed into a part of the memory called as the keyboard buffer. This code is called as the scan code. List out the merits and demerits of Penetration techniques?
List out the merits and demerits of DVST? What do you mean by emissive and non-emissive displays? The emissive display converts electrical energy into light energy. The plasma panels, thin film electro-luminescent displays are the examples. The Non-emissive are optical effects to convert the sunlight or light from any other source to graphic form. Liquid crystal display is an example. List out the merits and demerits of Plasma panel display? What is persistence? The time it takes the emitted light from the screen to decay one tenth of its original intensity is called as persistence.
What is Aspect ratio? The ratio of vertical points to the horizontal points necessary to produce length of lines in both directions of the screen is called the Aspect ratio. What is the difference between impact and non-impact printers? Impact printer press formed character faces against an inked ribbon on to the paper.
A line printer and dot-matrix printer are examples. Non-impact printer and plotters use Laser techniques, inkjet sprays, Xerographic process, electrostatic methods and electro thermal methods to get images onto the papers. Define pixel? Pixel is shortened forms of picture element. Each screen point is referred to as pixel or pel. What is frame buffer?
Where the video controller is used? A special purpose processor, which is used to control the operation of the display device, is known as video controller or display controller. What is run length encoding? Run length encoding is a compression technique used to store the intensity values in the frame buffer, which stores each scan line as a set of integer pairs. One number each pair indicates an intensity value, and second number specifies the number of adjacent pixels on the scan line that are to have that intensity value.
What is point in the computer graphics system? Write short notes on lines? Define Circle? Circle is defined by its center xc, yc and its radius in user coordinate units. What are the various attributes of a line? The line type, width and color are the attributes of the line. The line type include solid line, dashed lines, and dotted lines.
What is antialiasing? The process of adjusting intensities of the pixels along the line to minimize the effect of aliasing is called antialiasing.
What is Transformation? What is translation? Translation is the process of changing the position of an object in a straight-line path from one coordinate location to another. Every point x , y in the object must undergo a displacement to x ,y. What is rotation? A 2-D rotation is done by repositioning the coordinates along a circular path, in the x-y plane by making an angle with the axes. What is scaling? What is shearing? The shearing transformation actually slants the object along the X direction or the Y direction as required.
What is reflection? The reflection is actually the transformation that produces a mirror image of an object. For this use some angles and lines of reflection. What are the two classifications of shear transformation? X shear, y shear. Find the rotation matrix and the resultant point. Name any three font editing tools. Differentiate serif and sans serif fonts. Give one example Serif fonts has a little decoration at the end of the letter, but serif font has not.
Times, new century schoolbook is the examples of serif fonts. Arial, potima are examples for sans serif fonts.
A portion of a picture that is to be displayed by a window is known as window port. The display area of the part selected or the form in which the selected part is viewed is known as view port. Define clipping? Clipping is the method of cutting a graphics display to neatly fit a predefined graphics region or the view port What is the need of homogeneous coordinates? To perform more than one transformation at a time, use homogeneous coordinates or matrixes. They reduce unwanted calculations intermediate steps saves time and memory and produce a sequence of transformations.
Distinguish between uniform scaling and differential scaling? When the scaling factors sx and sy are assigned to the same value, a uniform scaling is produced that maintains relative object proportions.
Unequal values for sx and sy result in a differential scaling that is often used in design application. What is fixed point scaling? What is Bezier Basis Function? Bezier Basis functions are a set of polynomials, which can be used instead of the primitive polynomial basis, and have some useful properties for interactive curve design.
What is surface patch A single surface element can be defined as the surface traced out as two parameters u, v take all possible values between 0 and 1 in a two-parameter representation.
Such a single surface element is known as a surface patch. Define B-Spline curve? A B-Spline curve is a set of piecewise usually cubic polynomial segments that pass close to a set of control points. However the curve does not pass through these control points, it only passes close to them. What is a spline? To produce a smooth curve through a designed set of points, a flexible strip called spline is used. Such a spline curve can be mathematically described with a piecewise cubic polynomial function whose first and second derivatives are continuous across various curve section.
What are the different ways of specifying spline curve? What are the important properties of Bezier Curve? Define Projection? The process of displaying 3D into a 2D display unit is known as projection. The projection transforms 3D objects into a 2D projection plane What are the steps involved in 3D transformation? What do you mean by view plane? A view plane is nothing but the film plane in camera which is positioned and oriented for a particular shot of the scene.
Define projection? The process of converting the description of objects from world coordinates to viewing coordinates is known as projection What you mean by parallel projection? Parallel projection is one in which z coordinates is discarded and parallel lines from each vertex on the object are extended until they intersect the view plane.
What do you mean by Perspective projection? Perspective projection is one in which the lines of projection are not parallel. Instead, they all converge at a single point called the center of projection. What is Projection reference point? In Perspective projection, the lines of projection are not parallel. Instead, they all converge at a single point called Projection reference point. Define computer graphics animation? Computer graphics animation is the use of computer graphics equipment where the graphics output presentation dynamically changes in real time.
What is tweening? It is the process, which is applicable to animation objects defined by a sequence of points, and that change shape from frame to frame. Define frame? One of the shape photographs that a film or video is made of is known as frame. What is key frame? One of the shape photographs that a film or video is made of the shape of an object is known initially and for a small no of other frames called key frame Define Multimedia Multimedia is the use of the computer to present and combine text, graphics, audio and video with links and tools that lets the user to navigate, interact, create and communicate.
Where to use multimedia? Multimedia improves information relation. What is hypermedia? A set of documents in which a given document can contain text, graphics video and audio clips as well as embedded references to other documents world wide web pages are hypermedia documents. List of Programs. Write a C program to implement Bresenhams line drawing algorithm.
Write a C program to implement Bresenhams circle drawing algorithm. Write a C program to implement Bresenhams ellipse drawing algorithm. Write a C program to implement the Line, Circle and ellipse attributes by drawing "House". Write a C program to do two Dimensional transformations - Rotation With and without pivot point , Scaling With and without pivot point.
Write a C program to do composite 2D Transformations —fixed point scaling, fixed point rotation. Write a C program to implement Cohen Sutherland 2D line clipping algorithm. Write a C program to do three dimensional transformations - Translation, Rotation, Scaling. Write a C program to do the projection of the 3D image. Write an OpenGL program to draw a chain of diamonds. Write an OpenGL program to draw village of houses. Write an OpenGL program to 'n' random sierpinski gaskets.
Write an OpenGL program to create checker board effect. Write an OpenGL program to draw flurry of diamonds in random color at random positions. Write an OpenGL program to draw random constellation of points within a window boundary. Write an OpenGL program to draw at least four basic graphics primitives. Write an OpenGL program to draw three dimensional objects.
Write an OpenGL program to draw three dimensional scenes. Write an OpenGL program to do window to view port mapping. Write an OpenGL program to implement color models. Write an OpenGL program to generate Mandelbrot set. Labels: Computer Graphics Lab. Amar Rajput October 24, at PM.
Unknown November 16, at AM. Andy Wilson May 1, at PM. Robin August 6, at PM. Vehicleyard August 12, at PM. Max Willor December 3, at PM. Assignment Achievers December 18, at AM. William Smith February 15, at PM. Veronica Kate July 27, at PM.
Assignment help December 15, at AM. Assignment help April 16, at PM. Newer Post Older Post Home.
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