Why make searchable databases from your images? You may, for example, add metadata like ‘page title’ or ‘draft number’ to your drawings.īefore you can make the most of this potential versatility, however, you need to convert the text in your images using OCR. There’s also the option of attaching data to the text elements within vector images. This means that users can edit or attach data to individual components (including text) of a technical drawing.Īs vector text is recognized as such (distinct from the surrounding drawings) you can search through it as you would in any other document. Vector images are comprised of distinct elements, each of which is defined by a mathematical equation. All of this is to say that having textual information stored in a raster format is a bad idea. What’s more, data cannot be attached to particular elements of the file, and zooming in or changing scale will result in a reduction in quality of the overall image. The text isn’t really text and thus it isn’t possible to search for these details within a raster image. And that’s it. Even if a raster image appears to contain text, for all intents and purposes (in other words, from a computer’s perspective) the text is indistinguishable from the imagery because it’s all just pixels. The issue when it comes to text, however, is that raster images are made up of pixels. If you want to store high quality photographs, for example, TIFF files are handy because they support a large number of colors and boast lossless compression-allowing images to retain their quality even after editing or compression has taken place. Raster images are good for certain purposes. Using this technique, a computer system that can retain multiple neural networks (which allow for deep learning) can even be trained to recognize handwritten text! It should recognize, for example, that a short horizontal line sitting on top of a longer, vertical line makes a ‘T’. Instead of matching similar letters, the computer is looking for certain features that it has learned, in combination, form a particular letter or number. While somewhat effective, this approach is limited in the sense that the OCR will only be able to detect common fonts like Times New Roman or its very own OCR-A.įeature extraction, on the other hand, has vastly improved the accuracy of OCR technology. The former involves a computer searching an image and comparing the information within to a collection of fonts, numbers and symbols that it already has stored. There are a number of different techniques that OCR utilizes, the two most common of which are pattern recognition and feature extraction. For example, the cameras that police use to track number plates rely on OCR, as does the software that enables law clerks to search for particular legal cases within a giant database. You can see it in action in various different forms across the globe, as it is put to use by industries with a range of OCR needs. It is the technology that allows computers to detect and highlight text within an image. OCR stands for Optical Character Recognition. Convert your images to searchable documents.How OCR can create searchable documents.Why make searchable databases from your images?.In this article, we’ll explore the process by which you can transform your images into versatile, editable and, most importantly, searchable documents. This level of efficiency is possible when you use conversion software that incorporates the power of OCR. Once organized into such a system, one would simply have to search for a text string within the imagery and the relevant image would appear. If you convert text within your imagery to text strings, you can begin to catalog your imagery into a searchable database. What if your goal is to create a searchable database of the data held within your images? This is where technology like OCR can be a real game-changer. And for good reason-you simply can’t get the full potential from your technical drawings while they’re in a raster format.īut there are other valuable benefits to converting your images than just editing your drawings. If this isn’t your first time to this blog, you’ll know that we’re forever touting the benefits of converting your images from raster to vector.
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