- [TI-84+] 9-Level GrayScale Image Viewer
- 18 Aug 2020 06:21:06 pm Permalink
- Last edited by tr1p1ea on 18 Aug 2020 10:27:35 pm; edited 1 time in total
I'm not sure if I ever made a topic about this (I couldn't find one) - but this is something that I made over 8 years ago.
9-Level GrayScale on the 83+/84+ line of monochrome calculators.
Once again this was something that I found on an old calc that I'm sending away to a better life. There is some rough tuning/timing but this wasn't finished. On 84+ and later calcs it works really well when synched, but the crystal timer stuff wasn't finished completely.
Still on this particular calc the image is very stable - almost as stable as 'perfect' 4-level. It uses a special '2-row' masking technique to remove any pixel rolling/flicker.
Under a high level of scrutiny you can see some movement, particularly at some shade boundaries - but overall I think it looks nice.
Here is a video, check it out!
My phone camera has picked up a reflection/shimmer off the calc's screen that isn't part of the program (you can see it present even when at the menu which is non-grayscale). If you watch the video in it's own window you can see it better.
9-Level GrayScale on the 83+/84+ line of monochrome calculators.
Once again this was something that I found on an old calc that I'm sending away to a better life. There is some rough tuning/timing but this wasn't finished. On 84+ and later calcs it works really well when synched, but the crystal timer stuff wasn't finished completely.
Still on this particular calc the image is very stable - almost as stable as 'perfect' 4-level. It uses a special '2-row' masking technique to remove any pixel rolling/flicker.
Under a high level of scrutiny you can see some movement, particularly at some shade boundaries - but overall I think it looks nice.
Here is a video, check it out!
My phone camera has picked up a reflection/shimmer off the calc's screen that isn't part of the program (you can see it present even when at the menu which is non-grayscale). If you watch the video in it's own window you can see it better.