what is the difference between a real or virtual image?
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A real image and a virtual image are the forms of image. The difference between real and virtual images is the way they are produced. To obtain a real image, the light rays are converged while to obtain a virtual image, the light rays diverge.
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Key Differences Between Real and Virtual Image Real images are formed when light rays after reflection or refraction converge at a point before a mirror or lens. While virtual images are formed when the light rays diverge after reflection or refraction.
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The more general term computer-generated imagery (CGI) encompasses both static scenes and dynamic images, while computer animation only refers to moving images. ... This technique is identical to how the illusion of movement is achieved with television and motion pictures.
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As nouns the difference between image and copy is that image is an optical or other representation of a real object; a graphic; a picture while copy is the result of copying (confer original); an identical duplication.
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As nouns the difference between map and image is that map is a visual representation of an area, whether real or imaginary while image is an optical or other representation of a real object; a graphic; a picture.
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When used as adjectives, actual means relating to a person's acts or deeds, whereas virtual means in effect or essence, if not in fact or reality. ... Existing in reality, not just potentially; really acted or acting; occurring in fact.
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A Bitmap image or graphic is made up of pixels. JPEG images are too. However, vector graphics are made up of, you guessed it, vectors. These graphical renderings are made up of points and paths rather than tiny squares.
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A real image is defined as one that is formed when rays of light are directed in a fixed point. A real image can be projected or seen on a screen. ... The explanation for this is the fact that the rays of light that form a virtual image never converge therefore a virtual image can never be projected onto a screen.
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Image - Any visual object that's modified or altered by a computer or an imaginary object created using a computer. Photo or photograph - Anything taken by a camera, digital camera, or photocopier. Picture - A drawing, painting, or artwork created on a computer.
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Apparent Depth Real Depth with Examples. Picture shows the difference between the real depth and apparent depth of the object under water. We see the objects closer than their real depth to the surface. ... Thus, observer sees the image of the fish at the distance Da from the surface which is the apparent depth of the fish ...
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Concave mirrors can produce both real and virtual images; they can be upright (if virtual) or inverted (if real); they can be behind the mirror (if virtual) or in front of the mirror (if real); they can also be enlarged, reduced, or the same size as object.
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If the scene is presented as it was originally photographed by the photographer–with only enough processing to make it look as good as possible on screen, it still falls in the realm of photography. If there are elements added or deleted that alter the scene as it was photographed, then it's a digital image.
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As nouns the difference between image and icon is that image is an optical or other representation of a real object; a graphic; a picture while icon is an image, symbol, picture, or other representation usually as an object of religious devotion.
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The more general term computer-generated imagery (CGI) encompasses both static scenes and dynamic images, while computer animation only refers to moving images. ... Sometimes, the target of the animation is the computer itself, but sometimes film as well.
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TL;DR. Use JPEG format for all images that contain a natural scene or photograph where variation in colour and intensity is smooth. Use PNG format for any image that needs transparency or for images with text & objects with sharp contrast edges like logos. Use GIF format for images that contain animations.
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In image processing, an image is "processed", that is, transformations are applied to an input image and an output image is returned. ... Computer vision uses image processing algorithms to solve some of its tasks. The main difference between these two approaches are the goals (not the methods used).
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While Virtual Reality takes users into a digital world, 360 videos are live action, filming reality as it is seen at that moment. 360 videos are captured using special 360 degree cameras but can be viewed on any 360-compatible device, including various apps, smartphones, computers, and more.