Logos - Vector vs Raster?

- 12:54 pm - December 14th, 2013


Logos - Vector vs Raster?

December 14, 2013 at 12:54 PM

Pooches_vectorised_logo.jpg

 

Why you should always chose vector images over raster images for your logo design


What’s the difference between raster and vector? This question is asked by many newbie designers, webmasters and other interested individuals – and sometimes the answers can be as confusing as the names raster and vector themselves. It’s time to clarify the difference between raster and vector once and for all.

RASTERS VS VECTORS DEFINED

A raster image is made up of pixels, each a different color, arranged to display an image.

A vector image is made up of paths, each with a mathematical formula (vector) that tells the path how it is shaped and what color it is bordered with or filled by.

The major difference is that raster image pixels do not retain their appearance as size increases – when you blow a photograph up, it becomes blurry for this reason. Vector images do retain appearance regardless of size, since the mathematical formulas dictate how the image is rendered.

JPEGs lose quality every time they are opened, edited and saved. 

If a JPEG image is opened, edited, and saved again it results in additional image degradation. It is very important to minimize the number of editing sessions between the initial and final version of a JPEG image. If you must perform editing functions in several sessions or in several different programs, you should use an image format that is not lossy (TIFF, BMP, PNG) for the intermediate editing sessions before saving the final version. Repeated saving within the same editing session won't introduce additional damage. It is only when the image is closed, re-opened, edited and saved again.

IN CONCLUSION

When getting your logo designed, dont settle for just a Jpeg copy, make sure you get the vector copy which will most likely be generated by Adobe Illustator or Corel or a PDF generated by either of these programs. 

To get the best results from your logos, when supplying your logo to others such as sign writers and printers, always supply the vector image which will often be in PDF or EPS format. This way, when put on various size medium, the image will be sharp and clean.

For more information here 
http://www.psprint.com/resources/difference-between-raster-vector/

 


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