I have a few Panorama's that I find are some of my best work. Which annoyingly are simply too big for DA to handle. So they're stuck on my computer with no one to view them. It's a travesty I tell you!!
The reality of the situation, as others have pointed out, is that you're going to have to resize them to be able to show them off. It's not as dismal as you might think though. You will lose detail from resizing. There's no way around this, but with good sharpening techniques, you can trick the observer into seeing more detail or implying that there is more detail than is immediately evident. I find that the ever-so-popular unsharp mask never cuts it for me. Here's another sharpening method that might get you where your image is satisfactory. [link]
My all time favorite though is still high-pass-filter sharpening because I can adjust it much easier and apply more or less in specific portions of the image that I want. Tutorial here: [link]
I have single frame 16bit images that are in excess of 1.2GB in Photoshop while I am working on them, I downsize them to around 2800x1800 at roughly 800KB as JPGs for upload. Yes there is a loss of quality but most people simply want to see a nice image that just about fits on screen. DA is designed for just getting a reasonable look at some interesting art work that might consume maybe 1/2 to 3/4 of the screen space, maybe people want to download to display as a desktop background.
98% of people who will view your images will not be able to tell the difference between a tiny JPG and the huge source PSD or TIFF on your average bog-standard 24" monitor. Plus most people will spend and average of maybe 2 seconds on your image before moving on to the next one, so you've wasted 5 mins uploading a 50MB source image. Lastly the bigger the image, the more like some sod is going to rip it off, offer smaller lower quality images and you're not giving your best stuff away for all and sundry to help themselves.
There are sites out there that cater for huge images as a specialist interest, Google search for panorama and huge-image sharing sites but DA is just not setup for that kind of special image type.
Yeah I hate making large images in size or space. It's pretty much the reason why I haven't submitted photography in months, anytime I do it stops loading and won't work for some reason. Even when I resize it, so I've just had to stop uploading because it's a nightmare to even get one photo up let alone 90.
Yeah it's annoying D: I upload a lot of pictures which I don't mind doing. but it is annoying when a picture I love which happens to be massive is stopped.
At first I thought it was my dodgey internet connection but it seems to just be Deviantart doesn't like me ha ha. I have uploaded for aggggggggeeees and now I can't get even one photo up
Nothing you can realy do and it is nothing to do with at all either , making images that big is totally a wast of time if all they are for is the net and monitor display .
No matter how large you make an image you can only view it as large as your monitor will give you.
Panoramic shots look fantastic if done right but unfortunately they are the sort of photo that only belongs in print and not really suited for monitor display
While I understand why you want to display the best possible quality of your work one should stay within reasonable limits. A panorama this big will simply not be viewable to the average joe anyways. 18000 x 10000 is insanely large, the highest resolution for a monitor you can get right now is 2560x1440. (If we are talking consumer grade) You might be able to get 6 monitors set up on a PC, which would end up being 7680x2880. Even with this insane setup you couldn't view the whole image at once and if you zoomed in to 100 percent would have to scroll quite a bit to view it. It's simply not realistic that anybody would view it like this. And printing it at 300dpi (which is pretty high quality especially when talking about those sizes) it would come down to 60x33 inches. That is one big print at a ridiculously high quality. DA simply is not equipped for this sort of stuff. If you really want to publish your high resolution photographs I would suggest you check out this page: [link] (gigapan.com) It's a community dedicated for the use of gigapixel images that has a software on the site to make large images like yours useable for the average joe. (I have not checked out their terms of use, so be sure to read through those before you join up. It looks like it might fit your bill quite nicely however) You could then always downscale the images and upload them to dA with a link to the full view on gigapan.
Which annoyingly are simply too big for DA to handle.
So they're stuck on my computer with no one to view them.
It's a travesty I tell you!!