What is autotracing?
Autotracing is a technique of generating a vector image from a bitmap image. Bitmap images represented by dots could have grains, halftone dots, or other restrictions. This can be solved by converting to vector images. Autotracing focuses on copying or converting a printable image into an outlined object.
Autotracing is carried out with the help of software applications. Autotracing analyzes the original bitmap image to separate the different areas into shapes. The shapes, in turn, are mathematically defined and help convert the image into a vector graphic. Various software packages are available to support autotracing, with most files being read in bitmap formats. However, the conversion technique and the accuracy of the conversion differ from software to software. In most cases, autotracing is faster than manual vectorization techniques.
In the case of simple bitmap images, autotracing is very efficient at converting them to vector graphics. Correct use of autotracing can help with file size reduction and also help create interesting artistic effects. Autotraced files are very useful in web applications as the smaller size can help reduce download times. Another application of autotracing is the manipulation of images generated by optical scanners. Bitmap images from scanners that are difficult to manipulate with other tools can be converted into vector form using autotracing. Flashy color effects can be added to both color and grayscale photos and images.
Autotracing may not be suitable for complex images because of the many different shapes and color shifts involved. In fact, the vector file could be much larger than the original file and may not be able to keep the look of the original image.