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DisplayMate

displaymate.com

31–40 of 42 posts

Re: DisplayMate

#32

Earlier quoted context omitted.

This would also help to detect overscan. I remember when I was shopping for my first 1080p TV, many (most?) had overscan and no way to turn it off.

Overscan is where it cuts off the edges of the image right? I’m sure an LLM could offer an explanation, but I genuinely have never understood why overscan is even a thing on HDMI ports. Most times I plug my AppleTV or laptop into a TV using HDMI by default it’s cutting off the edge of the image. When is it ever a good thing to cut off the edges of the incoming digital image and why does this seem to be the default be…

> I genuinely have never understood why overscan is even a thing on HDMI ports.

Remember that an HDMI port may be an input for another device where overscan is necessary to prevent the “garbage” at the edges of the screen. An example of this would be a DVR that outputs HDMI to your TV but perhaps records video that needs to have overscan set. Or VHS as an input. Those are just examples.

Re: DisplayMate

#33
post #25

beautiful web design :) We aren't usually supposed to comment on it but im pretty sure thats exactly the reason this has been submitted.

Nostalgic maybe, but not sure it qualifies as beautiful.

there was a time when this, exactly this, was the future. It's old hat now, and soon too will modern web design seem clunky and outdated.

Re: DisplayMate

#34
Oh my, inspecting the page gave me a warm, cozy, nostalgic feeling and made me feel grateful for all the meals s just like that put on my family's table throughout the late 90s and early 2000s.

Re: DisplayMate

#35

Earlier quoted context omitted.

This would also help to detect overscan. I remember when I was shopping for my first 1080p TV, many (most?) had overscan and no way to turn it off.

Overscan is where it cuts off the edges of the image right? I’m sure an LLM could offer an explanation, but I genuinely have never understood why overscan is even a thing on HDMI ports. Most times I plug my AppleTV or laptop into a TV using HDMI by default it’s cutting off the edge of the image. When is it ever a good thing to cut off the edges of the incoming digital image and why does this seem to be the default be…

I'm also in my 40's and I haven't seen a reason for a TV to overscan in AGES. I only dealt with overscan when it was with old Analog signals like from an old VCR where timecode and close captioning data is on top most lines of the NTSC signal or when using a really old VGA to RCA adapter where you'd want the over scan to "stretch" your computer's desktop to fit the screen. I think your assessment is right, it's a hold over from before the Analog->Digital conversion and there hasn't been a big enough complaint to remove it.

Re: DisplayMate

#36
I find that this kind of web design is not conforting, it brings back memories of slow loading pages, scammy websites that download things without warning you.

Re: DisplayMate

#37

Oh my, inspecting the page gave me a warm, cozy, nostalgic feeling and made me feel grateful for all the meals s just like that put on my family's table throughout the late 90s and early 2000s.

While not used on the site, don’t forget the practice of having an invisible 1x1 pixel to create table borders.

Re: DisplayMate

#40
post #28

Earlier quoted context omitted.

> Why do you think it wouldn't work for a JPEG? I just made one like that, and it worked just fine. JPGs are lossy encodings; my use-case would definitely not work with JPGs, not matter how high you put the quality. For testing a display (like displaymate does) you literally want to light up specific pixels with specific colors. You can't do that with JPGs.

You can do that with JPEGs, just not the obvious way (i.e. by exporting the JPEG at the target resolution.) Instead, you need to export the JPEG at a resampled resolution that's a multiple of your target resolution, such that each pre-transform source-image pixel gets mapped to its own entirely-independent JPEG color block. Most obvious (though perhaps not optimal?) approach: nearest-neighbour upscale your image by 8…

> You can do that with JPEGs, just not the obvious way (i.e. by exporting the JPEG at the target resolution.)

Yeah, I don't think GP did it that way.

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