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Showing posts with the label vector graphic

Raster vs Vector

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There are two main type of image files: Raster and Vector. Raster images are created with pixel-based programs or captured with a camera or scanner. They are more common in general such as jpg, gif, png, and are widely used on the web. Vector graphics are created with vector software and are common for images that will be applied onto a physical product. Also used in CAD, engineering, and 3D 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. When using a vector program you draw the outline of shapes: and it's similar to creating an image with tiles of all different shapes and sizes. e.g. an eye shape, a nose shape, a lip shape. These shapes called objects display one single color each. A lot of images can be made with either raster or vector program and look exactly the same on both programs. Images with a subtle gradation of one col...

High Resolution Image for Printing

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What is a high resolution image? Common image files such as jpg, gif, png, tif, psd, bmp, are measured in pixels. The resolution of a pixel-based graphic is the number of pixels within an inch: PPI (pixels per inch) Whether the image has high enough resolution depends on the process being used. Generally, offset printers (paper printing) require a minimum of 300 ppi, screen printers (cloth printing) require 240 ppi. In order to determine whether an image is high enough resolution, you need to know 3 things: Your image's pixel dimensions (e.g 850 pixels wide) The printed size desired (e.g. want to print a 4 inch image on paper) The resolution required by the process your image will go through (e.g. printing 300 minimum ppi) ASSUMING RESOLUTION NEEDED IS 300 PPI  If your image is: (pixels wide) It can be printed in good quality at: (inches wide) 100 0.333 200 0.667 300 1 400 1.333 500 1.667 600 2 ...