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Why not 1440p with integer 2x scaling?
by foldor 3y ago
Why not 1440p with integer 2x scaling?
- p1necone 3y agoIt's very uncommon to find a monitor or TV that actually does non filtered integer scaling, most apply a blurry bilinear scale that looks awful. And afaik there are no external HDMI pixel doublers on the market, I would buy one in a heartbeat. Native 720p does look slightly better than integer scaling to 2x because of subpixel stuff, and generally liking that LCD look. But integer scaling would be enough really.
- teruakohatu 3y ago> And afaik there are no external HDMI pixel doublers on the market, I would buy one in a heartbeat. Sounds like a fun project, you should build one.
- p1necone 3y agoI did look into it a little bit, I think the reason none exist is because it's actually pretty difficult. Taking in a 720p hdmi signal and pixel doubling to 1440p or tripling to 4k and outputting that as a valid HDMI signal without adding more than a frame or two of lag would require custom chips. Although maybe a software solution involving a gpu might be possible?
- simias 3y agoFPGA is probably a safer bet if you want to minimize latency. Implementation is left an as exercise for the reader.
- teruakohatu 3y agoInteresting. Did you investigate FPGAs?
- kimburgess 3y agoTake a look at the HDFury products. The X4 should do what you need with those lower resolutions.