Lingo
Lorem Ipsum
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the
1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. more...
It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the
release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
Vector
Vector based programs such as Adobe Illustrator approach image creation in an entirely different way and do not render images on a pixel by pixel basis.
Using the same example as above the 1 inch x 1 inch square would only be made up of 4 dots/pixels, one on each corner. more...
These “vector points” allow the computer to
play connect the dots, each vector point has information telling the computer how to connect each point with straight or curved lines, and what colour the inner
space should be.
Because the computer only has to keep four points in its memory, it is much easier for the computer to edit vector based images as file sizes are really small. If you resize a vector based image it loses little or no detail, the vector points spread out and the computer just redraws the image. Vector images are ideal for logos as they can be resized and adjusted without losing clarity, so when looking for a logo designer ensure the final files produced are vector based.
Because the computer only has to keep four points in its memory, it is much easier for the computer to edit vector based images as file sizes are really small. If you resize a vector based image it loses little or no detail, the vector points spread out and the computer just redraws the image. Vector images are ideal for logos as they can be resized and adjusted without losing clarity, so when looking for a logo designer ensure the final files produced are vector based.
Raster
A raster image is made up of thousands of little dots/pixels, photo editors such as Adobe Photoshop are raster based and are great for rendering rich, full colour
images like photographs. Raster based programs do have some drawbacks though: more...
> Imagine a square 1 inch x 1 inch, if this square has been created at 300dpi then this will have 300 dots/pixels within it. The computer must keep track of all
the zeros and ones that make up those 300 dots/pixels, this can result in large file sizes which can be memory intensive when editing, the spec of your PC/MAC will
determine if this causes you problems or not.
> Raster images do not resize well, when you resize a low resolution raster image the pixels just get larger making the image appear distorted and blurry. One solution to this is to ensure the image is created at high resolution, an image at a minimum of 300dpi will resize quite well and keep fairly good clarity, however, it will only enlarge so much.
> Raster images do not resize well, when you resize a low resolution raster image the pixels just get larger making the image appear distorted and blurry. One solution to this is to ensure the image is created at high resolution, an image at a minimum of 300dpi will resize quite well and keep fairly good clarity, however, it will only enlarge so much.
CMYK
CMYK refers to the printing inks used in four-color process printing. Cyan, Magenta, Yellow and Black are the colors used to produce full-color photographs and
designs. (An approximate representation of these colors is above). These colors can be combined and printed to emulate a wide number of other colors.
more...
If you look
carefully at a printed color photograph in any magazine or book, you'll see that it's made up of rows of tiny dots called a halftone screen. The dots work together,
at different angles, to fool your eye into seeing a full spectrum of colors. For a graphics file to be printed in CMYK, it must be converted or created in that
color mode. When film is pr oduced, a different sheet of film is created for each color. For the computer to tell the machine that produces the film, an imagesetter,
what to put on each sheet of film, the computer image must be in CMYK format. Colors in a page layout program must also be specified in percentages of the four
colored inks. So, why do we refer to these four ink colors as CMYK and not CMYB? Well, quite simply, it's so that no one will be confused into thinking that the last
color is Blue rather than Black.
RGB
RGB means Red, Green and Blue. CMYK is the color profile used for full-color printing, RGB are the colors that monitors and televisions use to present colors to
you. The hardware used in monitors and televisions project beams of light to fill every pixel on your screen. more...
RGB is an additive system which means that when you
add the three colors together, you get white. When none of the colors are present, you get black (or the absence of light). Images that you find on the Internet
are in RGB mode or a variation of it called indexed color. When scans are created they are, by default, in RGB. RGB images divide the information into three
"channels" (one for each color) while CMYK photo files divide the color between four "channels." Therefore, CMYK images are bigger files and take up more space on
transport media or a hard drive. For best color accuracy though, images should be scanned in the color mode of it's final use (CMYK for color printing and RGB for
on-screen viewing).
