Forum: Fractals


Subject: Large Image Postings

CavalierLady opened this issue on Jun 26, 2004 ยท 23 posts


Rykk posted Sat, 26 June 2004 at 12:30 PM

Working "large" is good for catching details on an image that might be missed before printing and for the purpose of submitting them to a print house but, I think, the excessive amount of jpeg compression required to get the file size down for uploading to Rendo may defeat the purpose. I've seen a number of impessive looking thumbs of huge images (not your's particularly, Matt, you usually post some really good-looking stuff) that, when I clicked on them for a closer look, turned out to be somewhat disappointing due to a lot of blurring and, ironically, loss of the very detail and sharpness the artist was probably aiming for. Many times, using a "sharpen" filter in a graphics program such as PSP or Photoshop, tends to make the images' brighter colors a bit garish to my eye - expecially with rendered flames - and can undo the anti-aliasing a bit. At least that's been my experience. Might have something to do with my relative ineptness at finding the proper density and over-sampling settings for Apo flames, too! lol - or my lack of knowlege on "unsharp" mask technique. I run a 1024x768 screen resolution - the most widely used - on my rig and try to scale my posts so that the image can be seen in its entirety (800x600 seems to fit just right)at Rendo for folks using that resolution. I make all of my images 1024x768 or "X"x768 so that I can use them as wallpaper. I used to render 1024x768's up to like 2048x1536 or bigger with anti-aliasing and then resize these monsters to 1024x768 and 800x600. I've since found that merely rendering my 444x333 working image in UF up to 1024x768 with A-A works just as well, saves a bunch of disk space and - very importantly - TIME. I have a broadband connection, so larger images aren't much of a problem for me - though I tend to agree with Maria that it is a bit of a bummer, sometimes, to have to scroll around to see everything but really, the thumb has usually shown me the entire image and its impression carries over to the larger image - unless its one of those "detail" thumbs. Rick