I'm not familiar with DisplayMate, and the site appears to be hugged. Unsure what this is doing on the front page, but for any similarly lost folks:
> DisplayMate is the Worldwide Leader in Video Diagnostics and the World's most advanced Display Calibration and Optimization Software.
beautiful web design :) We aren't usually supposed to comment on it but im pretty sure thats exactly the reason this has been submitted.
It’s like a slice of the earlier web. Realized I haven’t seen a c|net logo around for a long time.
Despite being a web dev back in that era, I had totally forgotten about best practice back then being to add "click here for [...]" in link text. Because users didn't necessarily understand what links were!
I had completely forgotten how beautiful antique designs are
Nostalgic maybe, but not sure it qualifies as beautiful.
I’ve always used lagom.nl/lcd-test/
Haven’t needed it in years, but when it was still common that VGA was the only input into an LCD, this website had the images for easy calibration to perfect pixel alignment.
A popular tool preceding the days of YouTube reviews, used for testing and reviewing displays.
Am I confused, or are these a bunch of JPGs on a CD? There's no hardware, right?
TLDR: Not JPGs, BMPs more likely.
I recall when the first LCD TVs came out and I wanted to get a cheap 1080 one. The problem was that almost every TV said 1080 even if it was just 720 upscaled.
I put a uniform image in BMP on a memory stick - every column being R, then G, then B repeated. As the image was exactly 1080, viewing it in full-screen on a 1080 screen gave a sort of uniform grey color. On an upscaled monitor you could see very visible banding.
This would not have worked had the image been JPG.
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 behaviour on most TVs?
Edit: I asked an LLM and it says some content includes junk on the edge of images because it was never meant to be visible, so TVs enable it by default to cut down complaints/support requests. Apparently, even though HDMI supports a way to signal to TVs to disable overscan, many TVs ignore it.
I’m in my 40’s and have yet to personally encounter content where overscan should be used.
Maybe there were particularly crappy and prevalent analogue to digital converters in the early days of HDMI, but TV manufactures just never stopped doing it even though it’s almost never an issue any more. So we probably have a situation now where probably everyone has either manually changed their TV from its default or more likely are seeing an over scanned and thus non-pixel aligned image.
Maybe having some image processing circuitry that deals with both the analogue-originated signals and the HDMI-originated signals reduced cost and/or time-to-market.
Why do you think it wouldn't work for a JPEG? I just made one like that, and it worked just fine.
> 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 8x, and then save as JPEG with 100% quality (which will create 8x8 blocks with 4:4:4 subsampling.)
I couldn't see any hardware, which makes it vastly inferior to say Spyders that I've always used.
For if it is still hugged to death
https://web.archive.org/web/20260622172525/https://www.displ...
I'm not familiar with DisplayMate, and the site appears to be hugged. Unsure what this is doing on the front page, but for any similarly lost folks:
> DisplayMate is the Worldwide Leader in Video Diagnostics and the World's most advanced Display Calibration and Optimization Software.
beautiful web design :) We aren't usually supposed to comment on it but im pretty sure thats exactly the reason this has been submitted.
It’s like a slice of the earlier web. Realized I haven’t seen a c|net logo around for a long time.
Despite being a web dev back in that era, I had totally forgotten about best practice back then being to add "click here for [...]" in link text. Because users didn't necessarily understand what links were!
I had completely forgotten how beautiful antique designs are
Nostalgic maybe, but not sure it qualifies as beautiful.
I’ve always used lagom.nl/lcd-test/
Haven’t needed it in years, but when it was still common that VGA was the only input into an LCD, this website had the images for easy calibration to perfect pixel alignment.
A popular tool preceding the days of YouTube reviews, used for testing and reviewing displays.
Am I confused, or are these a bunch of JPGs on a CD? There's no hardware, right?
TLDR: Not JPGs, BMPs more likely.
I recall when the first LCD TVs came out and I wanted to get a cheap 1080 one. The problem was that almost every TV said 1080 even if it was just 720 upscaled.
I put a uniform image in BMP on a memory stick - every column being R, then G, then B repeated. As the image was exactly 1080, viewing it in full-screen on a 1080 screen gave a sort of uniform grey color. On an upscaled monitor you could see very visible banding.
This would not have worked had the image been JPG.
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 behaviour on most TVs?
Edit: I asked an LLM and it says some content includes junk on the edge of images because it was never meant to be visible, so TVs enable it by default to cut down complaints/support requests. Apparently, even though HDMI supports a way to signal to TVs to disable overscan, many TVs ignore it.
I’m in my 40’s and have yet to personally encounter content where overscan should be used.
Maybe there were particularly crappy and prevalent analogue to digital converters in the early days of HDMI, but TV manufactures just never stopped doing it even though it’s almost never an issue any more. So we probably have a situation now where probably everyone has either manually changed their TV from its default or more likely are seeing an over scanned and thus non-pixel aligned image.
Maybe having some image processing circuitry that deals with both the analogue-originated signals and the HDMI-originated signals reduced cost and/or time-to-market.
Why do you think it wouldn't work for a JPEG? I just made one like that, and it worked just fine.
> 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 8x, and then save as JPEG with 100% quality (which will create 8x8 blocks with 4:4:4 subsampling.)
I couldn't see any hardware, which makes it vastly inferior to say Spyders that I've always used.
https://www.datacolor.com/spyder/
Why is this on the front page? :)
Web design style nostalgia, I suppose.
Website appears to be down.
HN hug of death
Better call Web Dude
Definitely DONT call the Sales Guy!
"The Standard of Excellence for Image and Picture Quality"
Yeah you are, you go girl.
[dead]