Digital photography allows one to tweak photographs to make them looker smarter. And converting from Raster to Vector is a special technique that graphic artists use. Online photo imaging companies apply it to help agencies and businesses to market effectively their products online.

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To understand and appreciate the need of a professional to convert raster images to vector, it is important to first understand the difference between the two. It is also essential to comprehend why vector conversion is more meaningful. Any business that has a sizable online presence will need to be attractive enough for the consumer/client/user to remain on the website for some time. Most useful will its need be for marketing. Hence the graphics and visualization will have to be sharp enough to keep the user busy. Simply using Raster images and putting them online is no solution. When a professional converts the Raster to a Vector, chances of good stimulation and visual attraction is guaranteed. Often a logo determines a brand’s success. Having a business logo converted to vector is likely to result in a sharper image. And this is what a pro can do:

Understanding the conversion from Raster to Vector

Raster images are created from little boxes of color known as pixels. Image editors like Photoshop, MS Paint and painter can be used to edit such images. Vector images on the other hand are made up of paths forming dots, lines and different shapes. They are far more flexible for editing but require the comparatively modern drawing tools like CorelDraw or Illustrator to name a few. The usage of the two kinds of graphics is appropriate for separate situations, but there are instances when both need to be used together. It is at this time that a specialized professional knowledge is required to understand the limitations and advantages of both technologies to use the available tools optimally.

Raster images are not very edit- friendly. Because they are made up of several thousand pixels, editing these images actually mean editing the pixels. Images like photographs in a digital camera are a good example of raster images. Editing options of such images are very limited and are usually restricted to increasing or decreasing brightness, contrast, hue and size. Of these, resizing is not a very preferred option as these images are resolution dependent, and any change to that has a corresponding impact on the image quality. Vector images on the other hand can be edited to a much higher extent. In the hands of the experienced editor, these images can be transformed and enhanced to look completely new. The catch, however is that one needs to have access to converter software and a specialist who knows how to use them. Resolution and resizing are not issues with vector images, irrespective of how they are stretched or shrunk; these images do not lose clarity.

Graphic editors using vectors usually work with rotating, sketching, moving, skewing, changing of the z-order and affine transformations. Their work also involves combining a multitude of primitive objects like polygons, circles, ellipses etc to more complex objects. More sophisticated operations include transformations like set operations and use of various types of curves like NURBS or Catmull-ROM splines. Achieving the desired end result while working with so many variables and options is not always easy for laymen or even the gifted amateurs. Hence in the event that such conversions are required, it is best to enlist professional assistance.

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Rokaiya Yeasmin Munni

As manager and head of digital marketing at Clipping Path India, Rokaiya wants to help retailers and photographers use marketing strategies and tactics that will elevate their business. She has an 18-year background in graphic design, content management and digital marketing.

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