Category: aalst
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Wallpaper algorithm v.1, 2012
It’s good to compare… BUT YOU HAVE TO ZOOM FOR THAT! ;) This algorithm was realized by Robert Ochshorn and me 1 year ago. Compare the result with my new one, next post.
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Wallpaper algorithm v.2 : done!
You HAVE TO ZOOM by clicking! This has been made with the same data as this one: https://adrienlucca.wordpress.com/2012/07/20/light-transformer-prototype-v-2/
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summer
Robert Ochshorn & I in front of a functional “wallpaper” for Light Transformer 2, Netwerk centre for contemporary Art, Aalst, Belgium, June 2012
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hi-resolution pictures of the prototype
CLICK ON THE PICTURES TO ZOOM! Light ON/OFF, hi-resolution orthographic panorama made with Hugin. For me, there’s not much difference between such a work (the prototype, made of laserprints on paper) and a “traditionnal painting.” I’m really starting to think it’s just the same thing, like Richter includes amateur photography in the field of “painting.”
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Light Transformer Prototype v.2
The prototype is finally finished! So, to explain in a few words: 1-the amount of light projected by high-power spots on the wall has been measured. 2-an algorithm has been created to absorb the light using black over white laser-prints until the wall’s surface emits the same amount of light to the eyes of an…
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about to end
The central part being equalized. Something is slightly wrong – the values are increasing where the light is intense -, but it’s still very close to what I wanted (an equalized luminance everywhere in the rectangle).
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borders & junctions
CLICK ON THE PICTURES TO ZOOM! CLICK ON THE PICTURES TO ZOOM! CLICK ON THE PICTURES TO ZOOM!
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overview of the first layer of correction
CLICK ON THE PICTURE TO ZOOM IT! The “pool” in the middle is due to the limit of absorbance of the black (the contrast is too high between the dakest and the brightest part of the wall.) NOTE: this picture is 10 times smaller than the original (the blog doesn’t support extra large pictures…) to…
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video of the flat field (best to see on a screen)
If you didn’t get it, you will with the video. To remove the advertisements please use FIREFOX and install AD-BLOCK PLUS!
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good & bad news :)
The bad news: the laser printer cannot handle large black prints, some unit of the printer makes a random glossy layer on it. the random gloss the (very) good news id that the luminance correction is not very angle-dependant, means that except for that random gloss, the correction works at a wide variety of viewpoints,…
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growing … a few problems
without the proper light with the proper incoming light There’s a problem where the light is strong because the laserprints are weirdly glossy when the black is close to 100%
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a good “flat”
CLICK ON THE PIC TO ZOOM! Here it is: a “flattened” wall, made of a white wall, 2 halogen lights & 1 spotlight, white paper and black toner ink. The numbers, L* values in photoshop color picker, are approximate and dont take into account vignetting of the camera, but basically it works! And the…
adrien lucca 