DVL-Digest 102 - Postings: Index *.bmp images shake a patching question Poor Microsoft Codec *.bmp images shake - Adam Wilt > Can John Jackman or anybody point me to a solution for stilling down > shaking > bitmap images imported into Premiere? Is it likely to be "interlace > flicker" > but if so why doesn't "deinterlace flicker" work? If these are regular old BMPs, shot not with a video camera but with a still camera (or scanned from prints), the shaking is probably due to fine-detail twitter. Twitter occurs when a detail is present on one line (on one field), but not the next, and thus appears to be refreshed at the frame rate instead of the field rate. It's caused by interlaced displays, but it's not an interlacing artifact since the source image was captured in a non-intelaced manner. Running a blur filter should clean it up and make the image more quiescent. Experiment to find the proper settings. Cheers, Adam Wilt a patching question - Adam Wilt > what I'd really like is to build a firewire patch panel. Don't know where to get the raw parts, but Markertek carries prefabbed 1394 patch panels and passive switchboxes, too. http://www.markertek.com Cheers, Adam Wilt Poor Microsoft Codec - Adam Wilt > ...I came across several references to the poor performance of this > codec when adding special effects, transitions, titles etc. According to > these, there is much greater degradation of the video quality each time > the > video is de-compressed/re-compressed than with some other codecs (Canopus, > Main Concept etc)... The older Microsoft and QuickTime codecs in the survey you cite have been superceded by superior versions. The current Microsoft codec is much improved; it's roughly the quality of the old RadDV codec from Digital Origin -- good, but not perfect. In a typical project you'll see little degradation. I haven't tried Main Concept or Fast, so I can't rate them, but on the PC my top two choices are the Canopus codec and the Matrox codec. Both are much more transparent than the Microsoft codec (visible in the second or third generation, or in difficult-to-compress parts of 1st-gen pix), and much faster, too. On the Mac, the QT 5 codec is equally good and fast. Cheers, Adam Wilt (diese posts stammen von der DV-L Mailingliste - THX to Adam Wilt and Perry Mitchell :-) [up] |
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