hansmex
Advanced Member
Netherlands
Joined: Sep 26, 2009
Post Count: 4000
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Re: Unsharp rendering
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Emmanuel,
It's kind of hard to see on those small images.
"box" has a coarse gradient in the lowest green bar.
"triangle" is clearly better, and although suggested as preview quality, it comes very close to the others.
"sinc" clearly has a slight "shadow" at the right hand side of the yellow blobs.
"catmull-rom" suffers from the same problem, but to a lesser degree.
"lanczos" clearly has ragged edges at the right hand side of the yellow blobs.
Many others have a yellow shadow at the left hand side of the red blobs: "bspline" and "blackman-harris" suffer most, but in "catmull-rom", "mitchell", "gaussian" and even in "sinc" a small yellow shadow is visible.
"gaussian" looks good, a bit fuzzy, and the dark bar at the top misses the dark-red colour.
So, it's not an easy choice, especially when you have to choose from such small pictures. The three choices of the middle row seem best tome, with a small preference for "catmull-rom" because of its crisp look.
If necessary I'd be happy to test whatever you throw at me, setting up a few simple scenes with textures, circles, diagonals and horizontals and verticals in a slightly more "normal" colour palette.
Hans
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Hans
new website - under constuction
hansdirkse.info
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[Oct 12, 2010, 9:32:52 AM]
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