Vectorization or tracing is the process of taking a bitmap image and re-drawing it as a vector image. When you export a file to a bitmap file format, such as TIFF, JPEG, CPT, or. Vector images consist of shapes like circles, rectangles, lines and curves, while bitmap images, also known as raster images, consist of a grid of pixels. So the best it can do is a close approximation. The process of converting a vector graphic to a bitmap is also known as rasterizing. It can create smaller, more detailed brush strokes than even the most talented artist but it is actually far worse at recognizing complex shapes. A good artist could get close but it would never be exact.Ī computer can do no better than an artist. The two most common programs used to convert. Another artist can then follow the instructions to reproduce the same painting.Ī computer is very good with numbers so it can reproduce either type of image with ease but turning a raster image into a vector image is like asking an artist to take a grid of numbers and a color pallet, determine what shapes the numbers represent and then record the brush strokes he would have used to create them.Īnyone can fill in a paint by numbers picture but what shapes and brush strokes it would take to create the same picture is open to interpretation. The opposite process, turning an image into a bitmap, is called rasterizing. While raster files consists of rows and columns of colored squares that together form the image, in vector files shapes are built by paths - mathematical. Begin by deleting whatever color groups you desire. He records every brush stroke by its location on the canvas, its shape, direction and size. After converting a raster image to a vector, you have free range to edit the image. Each pixel is assigned a number representing a color and the computer just fills in all the pixels to display it.Ī vector image is like asking an artist to write down all the steps he takes to create a painting. A raster image is like a paint-by-numbers picture you played with as a kid.
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