Types of images:
- There are two main types of image files i.e, raster and vector.
- Raster images are created with pixel-based programs or captured with a camera. They are common in general such as jpg, gif and are widely used on the web
- Vector images are created with vector software and are common for images that will be applied onto a physical products.
Raster Graphics:
- When using a raster program you paint an image and it's similar to dipping a brush in paint and painting. You can blend colors to soften the transition from one color to another.
- Pixel-based images represent and edit photographs and photo-like images better than vector programs because they can use an abundant number of different color pixels.
- By arranging pixels and slowly increamenting or changing the color or shade of the pixels adaject to them, it creates a subtle gradation from one color to another nice and smooth color blends.
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| Raster image Without Zooming |
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| Raster image with Zooming |
Vector Graphics:
- When using a vector program you draw the outline of shapes and it's similar to create an image with tiles of all different shapes and sizes.
- Vector graphics are scalable because vector graphics are not composed of pixels they are resolution -independent. The vactor shapes also called objects and can be scaled and printed at any size without loosing quality. It can be printed as large and at the highest resolution the printer or the output device allows.
Raster vs Vector:
- Raster images are made of pixels. A pixel is a single point or the smallest single element in a display device. If you zoom in to a raster image you start to see a lot of little tiny squares.
- Vector images are mathematical calculations from one point to another that form lines and shapes. If you zoom into a vector graphic it will always look the same.
Real Time Applications of Raster Images:
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| Capture image with iphone |
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| Capture image with Camera |
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| Zooming of jpg image |
Real Time Applications of Vector Images:
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| Used for Physical Products |
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| Used for Grocery Products |
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| Used for Logos |