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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

No difference in sharpness downconvert filter

Matthew Rogers

Matthew Rogers

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So after reading about the different filters for down conversion (linear, mitchell, etc) I thought I would do a test this week to see which filter, along with sharpness and detail, made the most pleasing image. I rendered out clip in Linear, Mitchell, & Gaussian to 1080P with all different sharpness's (0%-100%) and detail (low-high). However, much to my surprise when I opened all the clips in QuickTime Player, they are all the same. I can see no difference in sharpness or noise between them. I am now trying to figure out if RedCine isn't changing the settings when I change the settings or if there really is no change between the settings. Grame may be the best to answer this.

Matthew
 
I heard that sharpness doesn't really make a difference when you're downrrezzing to 1080. I can see the diffeence in 1:1 mode in Redcine though.
 
These filters and settings are typically only relevant when doing renders to from a full rez. debayer/demosaic. And rendering to Quicktime frequently destroys those differences as the various codecs do all kinds of fun compression things to images.

If you want to see the difference, render from full rez to a 16-bit TIFF.

Lucas
 
luki said:
These filters and settings are typically only relevant when doing renders to from a full rez. debayer/demosaic. A
Click to expand...

very important point

there are real, easy to see, differences between most of the setting you mention.

I recommend full rez debayer for everything other than ofline...

Michael
 
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luki said:
These filters and settings are typically only relevant when doing renders to from a full rez. debayer/demosaic. And rendering to Quicktime frequently destroys those differences as the various codecs do all kinds of fun compression things to images.

If you want to see the difference, render from full rez to a 16-bit TIFF.
Click to expand...

When you say full rez do you mean 4k or the Full rez to 1/4 setting? Because I rendered the clips out at 1080p, full rez (full debayer) with the ProRes settings set to max. That's why I was wondering if there was a bug that made it look like the settings were changing, but under the hood it wasn't.

Matthew
 
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