08-01-2020, 11:55 AM | #61 |
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08-01-2020, 11:57 AM | #62 |
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08-01-2020, 12:03 PM | #63 |
the rook, bossing Never.
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I don't think there are modes. It's just an unusual physical filter that only filters half of each pixel. So colour is inherently 1/3rd resolution horizontally on any screen content using monochrome and colour content.
Nor can you place colour at 300 dpi. Colour is needing three pixels. |
08-01-2020, 01:30 PM | #64 |
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08-01-2020, 01:37 PM | #65 | ||
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the following, instead, is vector text rasterized at 100DPI In one element of the below one are nine of the above one. I think they are unmistakable. Instead, what we got out of photos taken on the Kaleido as implemented in the displays of the Hisense A5 Pro CC, this is the apparent difference not the sharpest, still probably discernible and convincing. That is in no way a 300DPI to 100DPI resolution loss. That sentence from Pocketbook seems, up to now, to be false to misleading, and a shoot in their foot. Pocketbook must have meant the basic: that you need three filtered dots to - virtually - display one colour. I think it is important to """nitpick""" there: that means a resolution of 173DPI (300/√3 - three dots to make colour, not nine - or in the terms from Quoth, 100 in a direction but still 300 in the other one, so √(300*100)), not 100DPI. When other commentators have mentioned such resolution downgrade, they have sort of communicated the idea that the system reduces the resolution when colour is involved. That would create the downgrade shown at the top, only tinted. Instead, it seems from the photos that the system produces an in-colour display output starting from a full resolution input. So, not the effect you are used to, but not the devastation I show above. |
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08-01-2020, 01:45 PM | #66 |
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I think the easiest way to show is by using a text only ebook with different color words. E.g. some black, gray (75%, 50%, 25%), red, green, blue, purple, brown, and cyan. And then take a picture with a camera good enough to show individual 300ppi pixel. My theory is, that the general outline of each word is exactly the same, except for the color words having all red and or green and or blue on "white".
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08-01-2020, 01:48 PM | #67 | |
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Edit: to further nitpick, even the fuzzy image is clearly a resolution loss of 300ppi vs 100ppi. It does no subpixel anti aliasing. There is clear big steps in the red, while the black is smoother. Last edited by DuckieTigger; 08-01-2020 at 01:51 PM. |
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08-01-2020, 02:06 PM | #68 | ||
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Anyway: if we got better photos there would be no need to wonder and reconstruct. |
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08-01-2020, 02:27 PM | #69 | |
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08-01-2020, 03:03 PM | #70 | |
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https://drive.google.com/file/d/1vZs...ew?usp=sharing I didn't think to test the gray, but the short version is that the black text is very black while at the same time the colored text is significantly faded. This image is about the best I can do, sorry. |
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08-01-2020, 03:25 PM | #71 |
Sir Penguin of Edinburgh
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Here's a photo showing gray text.
https://drive.google.com/file/d/1yai...ew?usp=sharing |
08-01-2020, 03:59 PM | #72 |
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Thank you for the good pictures, Nate. E Ink seems to have come up with a solution very similar to JPEG chroma subsampling, where the color resolution (chroma) is less than the grayscale resolution (luma). It's a clever way to add color images to books without messing up the resolution of the black text.
Add to that the ability to do full-speed animation (A2 mode at 8 frames per second), but now in color, and I'm starting to think I need one of these. |
08-01-2020, 04:02 PM | #73 | ||
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It is too bad that you do not have a maceo lens dslr. Thank you for taking the time to do this much work. |
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08-01-2020, 05:06 PM | #74 |
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So happy that there is now an color eReader in the market. This means that a color Kobo and a color Kindle are not far behind!
FWIW, I bought my very first ereader about a year ago -- a Kobo Forma. |
08-01-2020, 06:56 PM | #75 |
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If Amazon really wanted to use this screen, they would have paid to be first.
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