Hi everyone,
I am in the process of building a Whole Slide Imaging viewer for digital pathology slides.
Has anyone used a WSI viewer in the past, would love to hear about some of the strengths / weaknesses of the platform. Also - some areas of improvement.
Also -- are there areas other than pathology that would use such a platform?
Thanks in advance!
Hi all, I'm sort of at my wit's end here. I know that my Beamer LaTeX slides have the right options to generate hyperlinks because those hyperlinks work in most 'regular' PDF viewers (think: evince, emacs (using pdf-tools), mupdf, okular, etc). pdftk recognizes these hyperlinks as well. However, I can't seem to get impressive to recognize the hyperlinks! This means that I can't skip to a certain section by clicking an item in the sidebar, for instance.
Everything seems to be in order: I've installed all of the dependencies (I use Debian Linux, so I just installed everything from the repositories) including mupdf and pdftk, which seem to be necessary for hyperlink support according to the docs. Further, non-Beamer LaTeX documents with both external and internal hyperlinks seemed to work just fine as well. I'm not sure why this isn't working...any tips would be appreciated!
[Edit] This is stupid. Apparently compiling with PDFLaTeX (instead of XeLaTeX) fixed the issue. The problem is likely in how the relevant hyperref drivers write the links (hetex versus hpdftex) or something.
Anyway, seems to be solved now.
#Creepschool is the answer, thanks y'all
I must've seen it on Nickelodeon as a kid and this transitioning slide has been stuck in my head FOR MONTHS. I remember that this slide was pretty common, probably appeared once every episode.
Edit: One thing I also remember is that in one episode one of the characters got stuck or locked up or something and she was telepathically able to talk to someone else in order to get help.
Edit: I should mention that said slide wasn't a 2D but a 3D animation. I think the rest of the series was 2D though
Hi all.
I've recently purchased a late 1950s vintage Tower hand-held slide viewer. (I've added photos below the text).
The issue is that the image contrast is poor, and I think this is primarily because the reflective coating on a semi-silvered mirror in the device has degraded. It is hazy, streaked, and finely pitted.
For orientation, this is the light path starting at the top:
- Light bulb.
- Diffuser.
- 35mm slide.
- Convex lens.
- Semi-silvered flat mirror at a 45 degree angle, 69mm by 116mm, directing light away from the user's eyes.
- In the back of the device, a strongly concave mirror, reflecting the image forward, through the semi-silvered mirror to the user's eyes.
My questions are:
- Where can I source an inexpensive (hopefully less than $30 USD) replacement mirror.
- What reflectivity would optimize the image quality?
I see that dielectric "TV mirrors" can be ordered online in custom sizes, and I've seen 70:30 and 60:40 transmission:reflectivity so far. Could one of those work?
Thank you in advance for any thoughts on this!
Andy
Bottom view with cover and power/light assembly removed from the front and top.
Bottom view with semi-silvered mirror removed.
https://preview.redd.it/2mdp915lyy851.jpg?width=2942&format=pjpg&auto=webp&s=979c9edb6ba9996d0ac0cb96cb67f4d189c079e0
Anybody interested in seeing a photo of a cool vintage slide projector / viewer I thrifted today? I wasnβt sure if that was within the scope of the tech talked about here. Itβs super neat. Bought it to view vintage medical (cardiology) surgical slides.
Hi everyone,
I am in the process of building a Whole Slide Imaging viewer for digital pathology slides.
Has anyone used a WSI viewer in the past, would love to hear about some of the strengths / weaknesses of the platform. Also - some areas of improvement.
Also -- are there areas other than pathology that would use such a platform?
Thanks in advance!
