Pixelation
General => General Discussion => Topic started by: helloimpoor on March 31, 2006, 07:01:43 pm
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i'm new and therefore i am a bit lost in all this pixel language. please can people post here the 'pixel word' and its meaning for us lesser mortals. Some examples of things i want to know are 'sprites', 'dithers' and 'pixel dumps' etc...
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Wikipedia knows all.
Pixel - "A pixel (a portmanteau of picture element) is one of the many tiny dots that make up the representation of a picture in a computer's memory. Usually the dots are so small and so numerous that, when printed on paper or displayed on a computer monitor, they appear to merge into a smooth image."
Dither - "Dithering is a technique used in computer graphics to create the illusion of color depth in images with a limited color palette (quantization). In a dithered image, colors not available in the palette are approximated by a diffusion of colored pixels from within the available palette. The human eye perceives the diffusion as a mixture of the colors within it. Dithering is analogous to the halftone technique used in printing. Dithered images, particularly those with relatively few colors, can often be distinguished by a characteristic graininess, or speckled appearance."
Sprite - "In computer graphics, a sprite is a two-dimensional image or animation that is integrated into a larger scene."
Pixel Dump - ...Well okay, it doesn't know everything. Not in the wikipedia, but I'm pretty sure this term denotes sketches and random artwork done using a pixelling technique to draw them. "Dump" probably connotes they don't necessarily reflect the artist's best work, and display their skill in its unpolished form.
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anti-aliasing or aa: a tecnique used to smooth out graphics. it means to take the pixels off the grid( i think???)
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Actually, I think aaing is when you blend two colours together in order to improve the smoothness of the piece (I think this is wahat ryumaru meant).
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Anti-aliasing. (http://en.wikipedia.org/wiki/Anti-aliasing)
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The Wiki (http://www.wayofthepixel.net/pixelation/pixipedia/index.php?title=Main_Page")
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Actually, I think aaing is when you blend two colours together in order to improve the smoothness of the piece (I think this is wahat ryumaru meant).
i know that much but aliasing is supposedly " alighning the pixels to the grid" or something to that effect and anti aliasing un-grids the pixels.
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you can't un-grid the pixels, by using aa it creates an illusion of smoothness, all the pixels are still in the grid.
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you can't un-grid the pixels, by using aa it creates an illusion of smoothness, all the pixels are still in the grid.
sorry, but.. duh
i like ryumarus explanation. aa is like transferring contrasting borders, which actually are running along sub-pixel level lines, into the pixelgrid imposed by the screen. it's all about estimating the percentages of space the contrasting colors in question would use up of each pixel, thus giving the 'formula' or mixing ratio for this pixel's color
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Just remember a subpixel is always a bigger pixel than a regular pixel :P
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A subpixel is when one intentially implies pixels between pixels, and is seen clearly in animation where pixels interact and change accordingly to represent the given/hidden detail more fully.
Atleast that is how I understand it. I'm sure Camus can explain it better.
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They're fat and a bit oily. And they cost a lot.
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yes? subpixel very much sounds like below pixel level for me.. whatever, what i mean is that pixels don't allow 100% accuracy in displaying curves, them being infinitely thin,.. blabla you get the idea :)
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you can't un-grid the pixels, by using aa it creates an illusion of smoothness, all the pixels are still in the grid.
i say it in more of a figurative way than literal.
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yeah, curves are pretty figurative..
You can say a curve is more a motion, pattern/path, or general shape..
You can use any number of objects to create a curve includeing pixels.
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yeah, curves are pretty figurative..
You can say a curve is more a motion, pattern/path, or general shape..
You can use any number of objects to create a curve includeing pixels.
thats geniouse.
never thought of it like that. I always saw a curve as a path or line, opposed to a pattern.
:)