Mat and Frame output image frame sharpness

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davidh
Posts: 836
Joined: June 9th, 2009, 2:16 am

Mat and Frame output image frame sharpness

Post by davidh »

There is a visible difference between preview and output image frame sharpness in Mat and Frame transformation. The frame of the output image comes out is distinctly blurred.

David
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jsachs
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Joined: January 22nd, 2009, 11:03 pm

Re: Mat and Frame output image frame sharpness

Post by jsachs »

The preview and final image are computed at different resolutions - since the output image is anti-aliased for display it will generally look smoother than the preview image. To judge the true sharpness of the output image, view it at 1:1. At 1:4 which your screen shot indicates, 4x4 groups of image pixels are being averaged to produce each screen pixel.
Jonathan Sachs
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HanSch
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Re: Mat and Frame output image frame sharpness

Post by HanSch »

I can't reproduce it. The frame is tack sharp (at 1:1 viewing).
What settings do you use?
davidh
Posts: 836
Joined: June 9th, 2009, 2:16 am

Re: Mat and Frame output image frame sharpness

Post by davidh »

That's true, at 1:1 it is sharp. I should have found that explanation myself.
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