Ever had an image that has printed out pixelated or blurry?
When printing it is important to have the correct file set up to produce the best quality results. There are two main types of files, one that is made up of small pixels to create an image & Vector images which are made from points or polygons to create an image.
PIXELS
When taking a photograph the camera recordeds the scene in thouslands of small coloured squares called pixels. Each pixel has a certain limit it can be enlarged to untill it no longer looks sharp. The pixels are designed to be printed at a specific size to ensure the image stays sharpe. Most iphones and standard cameras have enough mega pixels to allow and image to be printed up to 1-2m wides with resonable image quality. Profesional quality cameras along with computer editing can however be printed larger.
When it comes to printing your images for best results have a high resolution image with 300dpi these are oftern saved as .jpeg or .tiff files. Other files such as .png or low res .jpegs are design to be used in low resolution applications such as screen views on websites or email signatures. These small files don't offer good printing results.
VECTOR
Vector files are computer generated images that are constructed with points/polygons or computer generated shapes and lines. These images don't have a pre definded limit to which they can be scaled too. A vector image could be printed the size of a football feild and still looks as sharp as a small version would. These files ofter the best print quality as there is never any pixelation and look sharp is all sizes. Vector files are usually saved as .esp files or outlined .pdf files which can be easily edited to change colours and sizes.
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