Digital Art and Design
Introduced| English | Meaning |
|---|---|
| digital media/ˈdɪdʒɪtl ˈmiːdiːə/ | digital media |
| layers/ˈleɪəz/ | layers |
| raster/ˈræstə/ | raster |
| vector/ˈvektə/ | A quantity with both magnitude and direction. |
| resolution/ˌrezəˈluːʃn/ | The ability to distinguish fine detail or closely separated features. |
Creating on a screen
- Digital media 数字媒介 create and edit images on a computer or tablet.
- They work in layers 图层, so an artist can build and revise without damage.
- The same elements and principles guide digital work.
Select all advantages of working in layers.
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Layers let you edit, move, and revise; they do not guarantee good composition.
Raster and vector
- Raster 位图 images are made of pixels (photo editing, digital painting).
- Vector 矢量 images use maths paths and scale without losing quality.
- Choose raster for painterly work, vector for clean logos and type.
Additive (light, RGB) and subtractive (pigment, CMY) colour
Raster or vector?
Sort each case as better suited to raster or vector.
Images made of pixels, used for photos and digital painting, are ____ images.
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Raster images are pixel-based; vectors use maths paths.
Vector images become pixelated when they are scaled up.
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False. Vector images are made of paths and stay crisp at any size. Raster (bitmap) images pixelate when enlarged.
Match each term to its meaning.
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Raster = pixels; vector = paths; RGB = screen colour.
Colour and resolution
- Digital colour uses RGB (screen, additive) or CMYK (print, subtractive).
- Keep files high resolution 分辨率 so prints stay sharp.
- Low-resolution images look blocky and pixelated when enlarged.
For sharp prints, keep digital files at a high ____.
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High resolution keeps images sharp when printed or enlarged.
Digital tools do not replace design skill. Layers, filters, and undo make revision easy, but a weak composition is still weak on a screen. And for the portfolio, keep files high resolution — a great image ruined by low resolution loses marks.
A designer builds a poster in layers — background, image, text — so each can be moved and edited freely. The logo is drawn as a vector so it stays crisp at any size, while the photo is a raster image. Understanding both makes the work flexible and sharp.
Digital media create images in layers. Raster images use pixels (painting, photos); vector images use maths paths and scale cleanly. Colour is RGB (screen) or CMYK (print); keep files high resolution. The same elements and principles still apply.
Write from a drawing layer and a colour layer
- The sketch stays on layer 1.
- The colour stays on layer 2.
In a digital image the sketch is on layer 1 and the colour is on layer 2. Why keep them apart?
What sits on one layer can be edited while the other layer remains.
Why put colour on its own layer?
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The sketch stays safe on layer 1 while layer 2 is reworked.