Vextractor is a professional software for converting raster images to vector (vectorizer). Vextractor converts drawings, maps and other images, including photo, logos, black-and-white illustrations from raster to vector format. The program can save converted raster images to the following vector formats: DXF, WMF, EMF, EPS, AI or SVG. Files of these vector formats can be imported to popular vector graphics applications like AutoCAD, Corel Draw, Adobe Illustrator, and many others. For the purpose of supporting GIS applications, the program allows saving images to the ArcInfo Shape and MapInfo MID/MIF formats. This software is a perfect replacement for the traditional tracing and digitizing. It can save lots of your time, for it is much quicker to use this program rather than do the tracing by hand or using a digitizer.
Chances are these days you can open raster files (e.g., BMP, TIFF, PNG, JPG) with your favorite CAD program - the majority of modern CAD programs can import and display raster images. However, as soon as you import your raster file in your CAD program, you will find out that all you can do with it is just view it and trace it over. You are unable to modify or edit the raster as easily as you can do vector data. That takes place because CAD software can only work with vector files. If you want to edit raster files in a CAD application you are to convert them to vector files first. That can be done with a raster to vector conversion program (vectorizer). Once your raster image is converted to the vector format, you will be able to import it in your CAD application and then edit it like any other drawings that you do with your CAD application.
The list below summarizes the conversion of hard-copy drawings to CAD drawings, using the raster to vector converter:
Vextractor can replace the traditional tracing and digitizing applications. It offers a simple and easy way to convert paper-based drawings to CAD drawings for further editing and use. Vextractor will save many hours of your time and free you from the boring and monotonous work.
If you want to check whether Vextractor will work for you - try it for converting your scanned images to the vector format. You can do that even with the demo version of Vextractor. It allows reading your raster files and converting them.
As soon as you see the conversion results, you will be able to tell, what is faster: edit the converted image in a vector editor or draw it by hand from a scratch. If you use Vextractor, it is normally quicker to vectorize a raster image and then edit the result than trace and digitize the entire drawing from the scratch. Quite often, the quality of the original hardcopy or raster is obviously insufficient for the precise conversion to the vector format. In such case, you can use the collection of special raster filters implemented in Vextractor for the preparation of raster images to vectorizing. With filters like median, despeckle, remove isolated spots or gaussian smoothing you can sufficiently improve the quality of the original image.
Sometimes, in spite of all efforts, the quality of the original scanned drawing makes the vectorizing and the further editing literally impossible. The automatic vectorizing is not perfect. That is true for all raster-to-vector conversion applications; not a single solution guarantees the 100% result. However, it does work and allows inputting a hard-copy drawing to CAD for the further quick and easy editing. It does not promise the irreproachable results at all times; nevertheless, it is a very useful tool for your work.
The program has all tools necessary for viewing images: scaling, scrolling, and color selection. Vextractor features: TWAIN support for importing images from any scanner; automatic recognition of orthogonal lines, arcs, and circles; saving the original drawing's scale. Vextractor can convert halftone and color images to black-and-white images for further recognition; it can rotate and change the orientation of raster images.
Vextractor has a built-in vector editor, which can be used for the editing of vectorization results. The program can create curves using Bezier splines, which allow obtaining images smoother than the original raster. By picking specific optimal parameters, you can obtain an image of curves, which look greater than the original image.
The program also can be used for the digitizing of function graphs to be used in MS Excel and other mathematical applications. The special text format ASCII XYZ with a very simple structure is provided for importing to such applications.
GIS professionals can use Vextractor's functions for digitizing hardcopy maps. The vectorizer supports such GIS formats as ArcInfo shape files and MapInfo MID/MIF. Specially for GIS users, the program has the capability of georeferencing raster images by points with known coordinates. The referencing via GeoTIFF and ArcInfo/ArcView World-files is also supported.
This software is not reviewed yet.
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