Want to pan over large (50"x37.5") image. How?

rjkrash wrote on 6/4/2007, 7:22 PM

I am trying to do a photo montage where I pan over a large image 15000 x 11250 px (50x27.5 in.). the image has several individual photos spread around the page.

When I load the image into Vegas it displays a red background but no image. Is there a limit on the size of a still image file

I set the project up as 720x480 as that is the "window" I want to reveal of the base image. Am I approaching this correctly?

Any ideas

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johnmeyer wrote on 6/8/2007, 9:02 AM

Just my 2cents: I briefly ran a company called Live Picture which pioneered the FlashPix format, back in the mid 1990s. The whole purpose of that format was to let you work on super high-res photos in a computer (back then) that was limited to a few tens of megabytes of RAM. That file format allowed just portions of the photo to be completely unpacked when really needed, and for the rest of the operations, a lower-res proxy was extracted from the file.

Now that we have more RAM, such a file format isn't needed as much --- until you get to gigantor sizes like this. The problem you have is that, regardless of what file format you save the photo, when you need to operate on it with any application, ALL the pixels must be extracted and put somewhere. More RAM is your only hope, but eventually the current OS (which can only address 4GB--I think that's right?) will seize up. Then, as others have said, the only thing to do is break up the project into segments.

rmack350 wrote on 6/8/2007, 5:23 PM

Exactly. This is what I was getting at regarding JPEGs and PNGs using the same memory when the file is decompressed.

Photoshop uses the sort of tiling you're describing. what I would be looking at in Vegas at this point is mimicking that sort of tiling with slices of the overall image on layers. I don't know that this would work but I think it would.

Rob Mack

rjkrash wrote on 6/9/2007, 7:04 AM

Rob,

thanks for the experiments and your input. I need to think about how I would go about the tiling/parent child idea.

have you seen anything posted that might get me started down the right path? a parent child tut or something.

again thanks.

rj