Importing stills from GIS - resolution

twitch wrote on 4/8/2002, 8:24 AM
I am trying to import into my video jpeg stills which have been exported from a GIS (mapping) application. Unfortunately while the exported still is fine, the rendered still loses resolution, to the extent that the map virtually becomes unreadable. I have tried using different colours, which seems to help. Is there any way to render a "clean" map? I am from Aussie, so am rendering in PAL DV. Any advice would be most appreciated.
Cheers
twitch

Comments

Chienworks wrote on 4/8/2002, 8:57 AM
The maxiumum resolution you'll get on rendered output is the project size, which is 720x576 pixels. It doesn't matter how large the original still is, the output will be resampled to this size. If you're rendering to one of the common web formats, the resolution will probably be only half of that.
ronaldf wrote on 4/8/2002, 12:45 PM
The high quality/resolution from the GIS application just won't convert going to video standards (PAL or NTSC). Things will get blocky. You are going from vector graghics to bit map. The quality won't be there. We have exported some maps from ArcMap 8 for use in a Corel Presentions slide show. I exported them in .BMP format so Presentations would except them. They are OK but not near the quality that you see on the monitor in ArcMap. Are you trying to export maps or aerial photos or a combination?
twitch wrote on 4/9/2002, 9:08 AM
Folks
Thanks for your responses. I am trying to import maps into a video. My problem is that the text and lines on the imported maps become blurred after rendering. And there seems to be some issue where some colours bleed into each other after rendering, creating small random dots and splashes, etc. I notice that this also happens to the VF generated titles - but not to the same extent. I get the feeling that there's some piece of essential information about rendering text to video that I have somehow missed out on. Any further advice would be gratefully received.
Cheers
twitch
Chienworks wrote on 4/9/2002, 11:23 AM
Twitch, one thing you can try doing is to open up the map graphic in a photo editor and resize it to 720x576 first, applying any sharpening/smoothing filters necessary to make it look as readable as possible. Then import this resized version into VideoFactory. The advantage is that you will have control over the resizing and VideoFactory will then render it as-is without having to resample it.