4.Aesthetic Primitives of Images for Visualization

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Re: 4.Aesthetic Primitives of Images for Visualization

Post by DCSmith » Wed Dec 01, 2010 11:03 pm

Aesthetic Primitives
In the article “Aesthetic Primitives” by Gabriele Peter, the most interesting concept to me was his analysis of Color. Peter talks about a variety of topics regarding ways in which colors are organized or perceived in an aesthetically pleasing image. The use of complimentary colors to highlight and contrast specific parts of an image is, in most cases, common practice amongst artists. In regards to that, a set of a few strong colors in an image, but not in excess, is also intriguing to our eyes. Another use of color was the isolation or emphasis of one particular color, monochromaticity, to make and object stand out. The part that caught my eye was the exploitation of dynamic range, and more specifically the use of High Dynamic Range photography. The dynamic range is the ratio of luminance values of the brightest and darkest parts of an image. In regards to aesthetics, a large range between the darkest shadows and brightest highlights is more interesting to the human eye. Oddly enough with print and photo the dynamic range possible is far lower than humans are able to perceive, leaving photos and prints somewhat lacking. This is why prints and on screen representations of objects/events do not compare to seeing them in real life. This is where HDR, or High Dynamic Range photos become interesting. HDR photos essentially take several pictures at carrying levels of exposure which are then overlapped and masked so that the final result has a larger scale of colors, tones and ranges.
Left image is an example of the emphasis of one specific color, nearly monochromatic. Right image is and example of High Dynamic Range photography.

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