what does digital image enhancement mean?
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An image when taken by a digital device (digital image) is made up by a grid (normally) of pixels. This represents the fact that the screen they are displayed on is similarly made up of a grid, and the sensors used to capture the image were arranged in a grid. \n\nEach pixel contains values for colour and intensity. It is common that the image will contain details that cannot be detected easily by the human eye, but can be detected by a computer looking at the pixel values. To enhance the image, a program is used to create a new image that takes the old pixel values and alters them (say mutliplies by 10) to make the differences more noticable. \n\nOther enhancements can include adjusting for movement of the camera, smoothing a gritty image, blurring a sharp one, making brighter, making duller, converting to black and white (greyscale) etc. These are mostly matrix operations applied to each original pixel in turn.
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If you do not have the general knowhow, it will be very complex.\n\nBut, it is possible to tell if a digital image was taken by the same camera, if the images were not modified.\n\nExchangeable Image File (Exif) information, which is what most digital cameras use when generating a JPG or JPEG image.  This Exif information often contains details about the camera, it's current settings and sometimes serial information.\n\nBecause of  very small irregularities in imaging-chips in digital cameras, every camera produces a unique pattern, that can be detected in shading and coloration.\n\nSo, it can be detected if the picture was taken by the same camera. I know know technology that can tell if the same person used the same camera twice.
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It is very difficult to upscale a photo, if you have a 72 DPI photo there is really no way to increase the DPI....that is the same as having a digital zoom on a camera...if you have a poor picture to begin with you will only have a bigger poorer picture at the end.
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antialaising. it enhances the graphics but reduces the performance. it smoothens the edges of graphics to a straight line. removes the staircase effect. it is avialabe in 2x 4x upto 16x \nVsync. it gives smooth frame rate.improves the overall play but may reduce performance. keep it to application controlled\ntripple buffering. it only helps when the computer resources are available for buffering and computational power is available it enhances performance and gives smooth frame rate but if the GPU is overloaded then it is really a sucker on the resources.
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Maybe a higher resolution would help. Sometimes if the resolution is too low the pictures look blury. However higher resolution = larger file sizes.
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Refers to graphics filters
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Nope.  It's just a fundamental law of video editing.  If you enlarge a photo or video, there will be pixilation.
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Microsoft digital imaging pro. I suspect that your real issue is that you can not truly enlarge a photo as the picture only has so many pixels to work with.
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Effective pixels are derived from the screen resolution, while real pixels are derived from the diameter of the screen mask.\n\nThe two pixels MAY BE the same size.
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i believe it's the magnification (or other distortion such as increased brightness) of the appearance of a star in the sky or through a telescope. the diffraction can be eliminated digitally, but other than that i'm not sure.
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Image quality: Highest\nDPI: 300 for printing, 50-100 for on-screen only.\n\nIf the old photos are black-and-white save them as 8-bit gray-scale (256 colours). Otherwise, 24-bit colour. JPG is good for file size, but if you want it perfect then TIF.
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DSP, or Digital Signal Processing, as the term suggests, is the processing of signals by digital means. A signal in this context can mean a number of different things. Historically the origins of signal processing are in electrical engineering, and a signal here means an electrical signal carried by a wire or telephone line, or perhaps by a radio wave. More generally, however, a signal is a stream of information representing anything from stock prices to data from a remote-sensing satellite. The term "digital" comes from "digit", meaning a number (you count with your fingers - your digits), so "digital" literally means numerical; the French word for digital is numerique. A digital signal consists of a stream of numbers, usually (but not necessarily) in binary form. The processing of a digital signal is done by performing numerical calculations.\n\nFor a great tutorial on DSP, check here:\n\nhttp://www.dsptutor.freeuk.com/\n\nand here\n\nhttp://www.bearcave.com/misl/misl_tech/signal/\n\nFor additional info and explanations, check the sources
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Would use photshop rather than image ready - Image Ready is more for web-based graphic than photo correction.\n\nYou want to first select the area using the lasso tool; then use the colour correction tools - the "hue/saturation" or the "selective color" tools - adjust the colour/tonal ballance.
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Pixels (short for Picture Elements) are the smallest dots which make up an image.\n\nThe resolution of an image is a quality of how it is displayed. Windows PCs have a screen resolution of 72 DPI (dots/pixels per inch), while Macs have 92 DPI resolution screens. This doesn't affect much on screen (apart from the rendering of font point sizes), but when you print out an image it matters alot. A 1200 DPI images will have 1200 pixels printed per inch (1,440,000 pixels per square inch), while a 300 DPI images will only have 300 pixels per printed inch. The lower the resolution, the grainier the image will look when printed.
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The best I can do is give you an example from image processing.  \n\nA bitmap image is row upon row of dots in a grid. Each dot is called a pixel.  \n\nIf I am making an image smaller, I am interpolating it.  Each square grouping of 4 pixels are averaged and the average color is used to fill the area that was previously taken by the 4 pixels.  \n\nIf I am making an image larger.  I am extrapolating on the known data.  Each single pixel is divided into 4 and their colors are "guessed" by examining the colors of the surrounding pixels.\n\nWhere interpolation is absolutely accurate, a reduction of the available data, extrapolation involves considering data that wasn't part of the original equation.
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Nobody is perfect; celebrities included.  Airbrushing and other digital alterations are to help smooth out little imperfections, such as blemishes, large open pores, scars, etc., as well as enhance the lighting, the ambience and overall look of the picture itself...magazines often attain a better reputation when they have visually appealing photos and graphics that are nearly flawless.
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Digital signal processing (DSP) is used to perform analysis on digital data streams, such as video and audio. In the digital domain, it is possible to perform statistics calculations and analysis in the frequency domain. \n\nDSP is used for a wide variety of applications: CD and DVD players, graphic equalizers for audio, digital image manipulation, mobile phones, video games, etc.