English > Feature Suggestions

Image scaling/resize quality

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Hyomil:
When I switch to PVD to view large posters after seeing them in Firefox, I'm struck by how much softer/blurrier they are.  I've written this off to a faster algorithm being needed for real-time scaling like occurs when dragging, but as computers have gotten faster, maybe something better could be used, at least as an option.  Photoshop includes Nearest Neighbor, Bilinear, and Bicubic algorithms.  Even Bicubic executes instantly on my computer for a 899x1280 image.  And even Bilinear looks better than whatever algorithm PVD is using.  Attached is a PrintScreen cap with a poster resized in Photoshop using Bicubic on the left and a screencap of it scaled to the same size in PVD on the right.  The black text at the top is shows the difference most clearly.



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rick.ca:
Sorry, I don't understand. I find it very difficult to tell the difference. In the attached, I can see the lettering at the top is noticeably different—at full size. But the PVD version looks better!

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buah:
And for whom is this thumb down? ;)

I'm kidding, of course, just couldn't stand not to notice...

rick.ca:
Blurry or not, I took it as fair warning to all who might be so foolish as to consider watching it.

mgpw4me@yahoo.com:
I suspect this is related to the image quality (compression level) set as an option when saving a JPEG image.  BMP and GIF are much clearer.  Anything lower than 80% results in significant blurring and artifacts in the saved image...given my eyesight...your results may vary if you wear glasses with thinner / thicker lenses than I do.   ;)  Of course, the higher the quality, the more space it takes in the database...

A user setting to control JPG image quality would seem a simple fix.

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