General > General Technical Chat
Guidence regarding posting a teardown...
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ballsystemlord:
This is probably listed somewhere in the forums but I cannot recall what to do in this instance.
Because teardowns involve showing images of the equipment, and that means lots of little chips, with even smaller markings, thus requiring large photos, what does one do to post such a thing? Mine are about 1MB in size each. And there are quite a few of them.
Do I do:
A separate blog?
Upload images to some other site and then link them in? Does raw HTML work here somehow?
Just tell everyone that wants to actually see the chips to "go jump in a lake"?
Something else?
Thanks!
RoGeorge:
If you want the pictures small in disk size, make normal JPG then reduce the JPG quality at 50%. If not small enough, resize smaller the number of pixels then save them as JPG at 50% quality. For this I used to use GIMP.
After a while, made a small script function instead of manually editing with GIMP, called the function "webify" and add it to the ~/.bashrc file. It is using a standard tool called "convert", the main line is this:
--- Code: ---convert PICTnnnn.JPG -strip -matte -resize 1024 -quality 50% -sampling-factor "2x2, 1x1, 1x1" PICTnnnn_s.jpg
--- End code ---
At width 1024 as I use for casual posting close-up of electronics, the size is somewhere between 50kB-100kB, sometimes less.
Sure, all other options you listed are valid and can be used here, each with their own pros/cons. This sticky topic in the "General Technical Chat" section was also about making/posting pics: https://www.eevblog.com/forum/chat/how-to-make-decent-photographs-for-forum-postsarticlespublications/
ballsystemlord:
My problem isn't that I can't take decent photos, although I'm not the best in the world, it's that I'm concerned that they'd end up will too low a resolution or too compressed if I uploaded them here.
Berni:
The forum preserves fully image quality. You just have to make them small enough to fit into the file size limits. There are also limits per post, so in that case you can just reply to your own post a few times to fit in all the images.
A JPEG with carefully set compression settings is indeed the way to go in fitting lots of detail in a small file size photo.
Ranayna:
You can also externally host your images and embed them here.
Noopy does that for his excellent die images which would be way to large to upload to the forum. They are all hosted on his website and embedded here.
Just make sure that this storage is reliable. It is very annoying if an image hoster dies and posts here turn useless.
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