Digital Image Creation & Editing Vector vs Raster

What is Raster? Image or images created with pixels Can be a photograph or video Can be in different digital formats such as jpg, gif, png, psd, tiff, mpg, mov, wmv, mp4

Features of Raster Image file format standard for photography and video Are resolution dependant More pixels = higher resolution Can be reduced in size but doesn’t scale up in size without reducing image detail/quality

Raster aka Bitmap Comprised of pixels and each pixel has a color value. More pixels/color = larger file size

What is Vector? Vector is a mathematically based method for creating line data Popularized by Pierre Bezier to help with automobile manufacturing techniques for Renault

Features of Vector Vector files are scaleable without losing image quality Because they are math based, vector files are smaller in file size generally Vector files aren’t internet browser friendly, require the proper software for display such as Adobe Flash

Vector Graphics Vector graphics can be stored in different formats, AI, PDF, WMF, FLC Font data is stored as vector Are resolution “independent”

Which one is a bitmap image Can you guess? Which one is a bitmap image and which are vector?

They are all vector! A proficient vector artist can create images that look like a photo. Yes, this is a time consuming process. Sometimes taking a photo is too easy.

Vector vs Bitmap Vector is scaleable, bitmap loses quality when scaled up Bitmap is best for photographs and video Fonts are stored as vector to ensure image quality at any size

Practice Do this for 10 images. Open up Microsoft word Remember to place your name, date, and class section in the right hand corner Select class appropriate Vector photos from the web Then use https://www.vectorizer.io/ to change them to Raster ( Bitmap) photos Do this for 10 images.