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![]() "Custom colors" means that you can select the exact set of colors to be used, while "unlimited colors" mean that the algorithm will pick them automatically. The next choice determines how the colors to be used in the vectorized result are selected. Sometimes an image can appear clean and crisp when zoomed out, but defects become apparent when inspecting it in detail. It is definitely a high quality image, so we will select that choice (see below).īut be sure to zoom in on any given image to take a close look. In this case, the input image is a very clean, crisp PNG, with no noise. The algorithm needs to know this so that, in the case of a noisy image, it doesn't mistake compression noise or other imperfections in the image as representing actual features to be reproduced in the vector image. The next option is the quality of the source image. In this case, the transparency is alpha-blended and we want to preserve the transparency in the vector result, so we will select 'Leave Transparent.' This page (shown below) lets the user make this selection. If the transparency is implemented as a 1-bit transparency mask (as with GIF), but the rest of the image has anti-aliasing, then it is necessary to flatten the image to a suitable background color. If the transparency is alpha-blended at the boundary (as is typically the case with PNG images), then the user should leave the transparency alone. This does require the user to make a choice. Transparency is supported by VM Desktop Edition but not the online version. So if an image contains transparent sections, as this one does, they will show through as the checkerboard. Just like many other image viewers and editors, VM uses a checkerboard pattern to indicate the background (behind the image). This is a convenience feature to make selection easier. You will note that this choice was also recommended and pre-selected by the program. We therefore select the second option, Logo with Blended Edges. A close inspection of any of the edges present in the image will reveal that this image does contain anti-aliased edges. You can zoom using the mouse wheel and can pan around the image using the hand tool by clicking and dragging the mouse. Go ahead and zoom in on this image to decide whether it is a logo with or without blended edges (i.e., whether it has anti-aliasing or not). ![]() The icons associated with each of these categories illustrate the differences between them. The three choices are Photograph, Logo with Blended Edges (anti-aliased), and Logo without Blended Edges (aliased). This will take you to the Image Type page, where we must select which category of image we are dealing with. This tutorial will follow the Basic Wizard, so you should click on the second of the three big buttons on the Wizard Mode page. Loading the image will take you to the wizard mode page (shown below). Pick your favorite method and load the image into the application. This can be done from the clipboard, by dragging and dropping the image onto the application or its launcher icon, or by using the conventional file browse dialog. It may be helpful to follow along to get a feel for how the application works. In this section, we will go through the steps that you should take to properly process this image in Vector Magic Desktop Edition. I have also elected to use a PNG, rather than a JPG or a GIF, because I'd like to focus this tutorial on the basic work-flow, and not on the specific challenges of overcoming compression noise. This is a fairly high-resolution image (604x528 pixels), but also fairly typical of this category among the images uploaded by our users. The image that I have chosen as an example is shown below: With those caveats in mind, you can also use the Online Edition to follow this tutorial. The user interface looks slightly different, and there's no transparency support. The Online Edition is very similar to the Fully Automatic mode in the Desktop Edition. You can download a trial version from the desktop application page. This tutorial uses Vector Magic Desktop Edition. In this tutorial, I go through the process of re-vectorizing such an image. This comes up when the original vector art has been lost or is inconvenient or time-consuming to retrieve. This tutorial applies only to bitmaps arising from the digital rasterization of a vector art original. Images drawn in a bitmap editing tool like Photoshop.Scans of artwork that was originally drawn or printed on paper. Bitmaps that were digitally rasterized from a vector art original. ![]() What kind of images does this tutorial apply to? In this tutorial, we explain how to use Vector Magic to perform this conversion quickly and easily. This process is called tracing or vectorization, and can either be done manually or using an automatic tool. This tutorial describes how to convert a digitally rasterized bitmap image into vector art.
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