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Abstract Photography
Abstract Photography

... • Abstract photography is unlike most other types of photography - rules, such as composition and accurate focusing hold no values. The abstract photographer uses his (or her) creative imagination to create stunning works of art. ...
A Non-Photorealistic Lighting Model For Automatic Technical
A Non-Photorealistic Lighting Model For Automatic Technical

... extraneous detail is diminished or eliminated. Images at any level of abstraction can be aesthetically pleasing, but this is a side-effect rather than a primary goal for technical illustration. A rationale for using abstraction to eliminate detail from an image is that, unlike the case of 3D scene p ...
ARTISTIC IMAGE GENERATION BY DEVIATION MAPPING LIU
ARTISTIC IMAGE GENERATION BY DEVIATION MAPPING LIU

... where, I is the result image intensity, λ is the color channel, which is one of Red, Green, and Blue, θ is the angle between the lighting direction (L) and the normal (N) of the virtual object surface, α is the angle between the viewing direction (V) and the reflecting direction (R), Ia is the ambie ...
Image representation
Image representation

... computer displays etc. Two categories-volatile display & statics display Volatile display-It requires constant power output to refresh the image on screen. Volatile display is one of the type of flat panel display. Eg: plasma display , liquid crystal display. ...
Eye detection using color cues and projection functions S. A.
Eye detection using color cues and projection functions S. A.

... histogram stretching operation. It is essential to eliminate the noise in the image which manifests itself in the lowermost and uppermost ends of the histogram. To this end, we compute the cumulative sum of the histogram. from either end and discard pixels below 0.1% of the sum. The residual histogr ...
Visibility Algorithms for Computer Graphics
Visibility Algorithms for Computer Graphics

... – requires synchronization between video signal and electron beam vertical sync pulse • Early computer displays – avoided synchronization using ‘vector’ algorithm ...
Graphics
Graphics

... The background is set, the unfilled rectangle are drawn using the default colour (black), the colour is set to myGreen and the filled rectangle and oval drawn, the colour is set back to black and the arc drawn and finally the colour is set to red and the pie drawn. PHY-102 SAP ...
Antialiasing
Antialiasing

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slides

... perserving sharp detail (line art, illustrations with type) ...
Anastasia Bezerianos - Prog IS drawing.key
Anastasia Bezerianos - Prog IS drawing.key

... g2.drawLine((int) (250 * Math.random()), (int) (250 * Math.random()), (int) (250 * Math.random()), (int) (250 * Math.random())); ...
Introduction
Introduction

... information, because in the broadest sense, the overall significance of the term is overwhelming. Instead of taking into account all of the ramifications of visual information; the first restriction we shall impose is that of finite image size, In other words, the viewer receives his or her visual i ...


... Smaller file size All aspects of music can be edited Effects can be applied to individual ...
View File - UET Taxila
View File - UET Taxila

... – Number of pixels on the screen – Higher number creates sharper images – Higher number creates smaller images ...
Illumination and Shading
Illumination and Shading

... Color ...
design3
design3

... • Each pixel is stored as a single bit (0 or 1), so also referred to as binary image. • Such an image is also called a 1-bit monochrome image since it contains no color. ...
Chapter 10
Chapter 10

... • Requires a fifth argument in addition to the x- and y-coordinates and width and height • Fifth argument is a Boolean value – True if you want the raised rectangle effect – False if you want the lowered rectangle ...
Histogram statistics for image enhancement Let r denote a discrete
Histogram statistics for image enhancement Let r denote a discrete

...  Correlating a filter w with a function that contains a single 1with the rest being 0’s result that is a copy of w rotated by 180ᵒ  If the filter mask is symmetric correlation and convolution yield the same result  Correlation can be used to find matches between images W(x,y).f(x,y)=∑ ...
1 - ASU JMC 305
1 - ASU JMC 305

... Once you’ve created the album, you can access it by clicking on “My Photos”, and selecting the album you want. Once you’re in the album, click the “Slideshow” button in the upper left to preview what the photo story will look like. If you want to add more photos, simply click on “Add photos” when yo ...
Adjusting the PMT signal gain
Adjusting the PMT signal gain

... are better at discriminating colour than tones of gray, and our eye will therefore only see the central part of the 8-bit gray scale. At best we can only see up to 60 tones of gray. In order to contrast stretch the emitted signal from the sample into the PMT, and not over- or under-saturate it, we m ...
Introduction to Computer Graphics
Introduction to Computer Graphics

... Allows flexible use of colors without lots of frame-buffer memory. Allows change of display without remapping underlying data double buffering. Permits simple animation. Common sizes: 8 x 12; 8 x 24; 12 x 24. ...
Displaying Stereoscopic Images
Displaying Stereoscopic Images

... Lenticular Displays  Defeat brightness problem of BS by controlling ray path with lenses instead of barriers  Array of long cylindrical lenses (per pixel column) refract light to places with same distance constraint as BS, continuous angle  100% of light passes in and out, no backlighting ...
ch-04 - It works
ch-04 - It works

Human Information Processing - Sensory - ppt
Human Information Processing - Sensory - ppt

... • Addressing each of the, e.g., 10 Nielsen, heuristics may not be best approach, as become “hectic” – Better to note in passing many, but focus on few to show depth of your analysis ...
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Overview of Graphics Systems
Overview of Graphics Systems

... Raster-scan Displays • The image is stored in a frame buffer containing the total screen area and where each memory location corresponds to a pixel. • In a monochrome system, each bit is 1 or 0 for the corresponding pixel to be on or off (bitmap). • The display processor scans the frame buffer to t ...
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Indexed color



In computing, indexed color is a technique to manage digital images' colors in a limited fashion, in order to save computer memory and file storage, while speeding up display refresh and file transfers. It is a form of vector quantization compression.When an image is encoded in this way, color information is not directly carried by the image pixel data, but is stored in a separate piece of data called a palette: an array of color elements. Every element in the array represents a color, indexed by its position within the array. The individual entries are sometimes known as color registers. The image pixels do not contain the full specification of its color, but only its index in the palette. This technique is sometimes referred as pseudocolor or indirect color, as colors are addressed indirectly.Perhaps the first device that supported palette colors was a random-access frame buffer, described in 1975 by Kajiya, Sutherland and Cheadle. This supported a palette of 256 36-bit RGB colors.
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