Compression artifacts only in part of encode

I am going to list as best as i can.
Beautiful QT movie plays great DV-NTSC 4:3
still looks beautiful in DVDSP till I encode
After encode i get compression artifacts or what looks like old avr 3.
starting about 40 seconds in and it last for 15 seconds then it "heals" itself.
I have tried everything.
I've trashed perfs
restarted.
Printed beautiful working movie to tape, then re-diged
Presently i am trying to get compressor to work but can't figure it out. I've never needed to use it before

fcp workflow was the same as always and I have never had a problem. Dig with dv-ntsc easy set up work in blackmagic esu export using compressor making a dv-ntsc movie. I am sure I have left steps out but I do it without thinking most days. I have been using both programs since their first versions this is totally new and baffling
At this point I am willing to go to another facility to see if its in my computer or if its a footage problem
the other thing I did was to make a dvd in Idvd and I got the same result there. Which makes me think its a footage problem. Printing to tape and diging the tape in a new project in FCP and exporting a new movie should have corrected the problem. The only thing I have not tried is to re-dig the original source tapes.

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Large .jpeg compression/artifacts?

I'm struggling with Muse's jpg compression, which I can't seem to bypass. I'm uploading very large images (2560px wide) for full-screen slideshows which have been optimized for the web in Photoshop. These images have large light backgrounds and hence Muse's jpg compression produces noticeably artifacted areas. I want to make sure it is indeed Muse that's the problem, and not Chrome. I'm previewing these locally. Thanks.

First, I have to say the delta between the screenshots is extremely small. I've had multiple people drop into my office for other reasons and none could see differences without me pointing them out using a pixel magnifying tool.
That said, here are some thoughts regarding this specific case.
Given this appears to be a photograph of black and white line art, it's a very problematic case for JPEG compression. To get a high quality result for this specific use case you'd want to start with a Camera RAW image from the camera (to avoid the camera introducing JPEG compression artifacts) and then go directly to a lossless image format such as PNG or GIF, rather than JPEG. For this specific subject matter going from Camera RAW directly to PNG/GIF would provide the best result, but at the cost of page load speed since the PNG/GIF image will likely be several times larger than a JPEG.
I expect what's occurred in this case is that the original image was a JPEG from a camera that was resized smaller and then re-encoded as JPEG.
The encoding as JPEG in the camera would introduce some artifacts but due to the very high resolution image the artifacts would be very small. Then the image was resized smaller. Resizing alters the image by using one of any number of algorithms to combine/average a set of pixels into a single pixel. The most common high quality approach is bicubic resampling. When resizing smaller this has the side effect of softening any hard edges within an image resulting in a final image that's sometimes considered ever so slightly blurry or "softer" than the original. I see this in the format.com example, in that it looks every so slightly soft or blurry compared to the PS and Muse examples. The algorithm available in PS and used by Muse when resizing smaller is bicubic sharper. This approach combines bicubic resampling with a very small amount of sharpening to counteract the blurring/softening effect of the resizing. For the specific subject matter in your image and the JPEG artifacts that were likely introduced before the image was resized, the sharping results in making the edges of the JPEG artifacts more noticeable (along making all the edges in the image crisper).
Without the URL for the webpage and the original image file (and probably the .muse file), I can only speculate on exactly what's being generated and why, but hopefully the above information is helpful.

How can I delete only one part of my xml file?

Hello,
I stored more than 100 users in only one xmltype column. For instance
Create table agro(users XMLTYPE);
... and I inserted all users inside
INSERT INTO agro values(XMLTYPE
('<?xml version="1.0" encoding="ISO-8859-1"?>
<authentication><users><user>
<name>cocoon</name>
<password>cocoon</password>
<role>admin</role>
<title>Mr.</title>
<firstname>Walter</firstname>
<lastname>Cocoon</lastname>
<company />
<street />
<zipcode />
<city />
<country>DE</country>
<phone />
<fax />
<email />
<bankid />
<bankname />
<accountid />
</user>
... another user, etc.
</users></authentication>'));
Now I tried to delete only one part of this file. For example all persons with the name"cocoon".
I used for this target the following statement:
DELETE FROM agro agro
WHERE agro.users.extract('authentication/users/user/text()').getStringVal()= 'cocoon';
When I execute this statement, Oracle DB delete all users and not only with the name "Cocoon".
How can I delete only one part of my xml file?
Kind Regards
M R

This the expected behavoir. You uploaded a document containing multiple users and then asked XML DB to delete any documnet that contained a user with the name in question. The problem here is that you are creating a mega document that contains an aggregation of user documents but then trying to work with individual user documents. This is a bad idea.
In general XML does not understand the concept of a collection of documents. It can only operate on one document at a time. Hence the tendancy to aggregate individual documents into a single larger document. Once you have an XML database, you can perform operations on collections of document, as easily as you can perform operations on individual documents, so the need to aggregate the individual documents together disappears.
If you store each user document as a seperate document then your delete will work as expected.

Hi, I have problem with importing MOV files from SJCAM 4000. MOV files are in supported formats for Adobe Premiere Elements 11. But if I'm importing MOV file, only audio part is imported, video part is not imported. How can I solve this problem?

Hi, I have problem with importing MOV files from SJCAM 4000. MOV files are in supported formats for Adobe Premiere Elements 11. But if I'm importing MOV file, only audio part is imported, video part is not imported. How can I solve this problem?

haben
From looking at the specifications of your camera (SJCam 4000), we know already what video compression your camera is using. It is H.264.
A H.264.mov file should be supported by Premiere Elements 11. On what computer operating system is your Premiere Elements 11 running?
Do you have the latest version of QuickTime installed on your computer? And, are you running QuickTime and Premiere Elements 11 from a
User Account with administrative privileges? Please go to Premiere Elements 11 Publish+Share/Computer/QuickTime to confirm that you find
presets there for the QuickTime choice there.
What are the properties of these H.264.mov files - is it 1080p30 (1920 x 1080p30) or something else? Do you know if this camera is recording with a variable or
a constant frame rate?
Please review and consider and then we will decide what next.
Thank you.
ATR

Interlace problem or compression artifact?

Premiere 6.5
XP sp2
Quad-core 266
4 Gb RAM
7200 rpm SATA HDD for video projects
I am working on a volunteer project for a local museum wherein some old VHS tapes need to be digitized. The final video (probably MPEG-2) will be accessible from research computers at the museum. File size is not a big issue, but preserving as much quality (such as it is) from the 10+ year old VHS (not SVHS) tapes is essential.
So I feed the analog output from my tape deck to my Sony TVR310 camcorder for A/D conversion, then capture from there to my PC via firewire. I have tried capturing via the software that came with my Edius (a.k.a. Canopus) card, and also directly into Premiere. Same thing happens both times.
On the exported video (AVI, MPG1, MPG2) I see these wavy edges on the left and right sides of high-contrast areas. See the guy's hat in the attached image (if it ever gets outa the queu). Does this look like a compression artifact? Or is it an interlace problem? I do not see this effect when I watch the original video on my TV.
Note that Premiere reports the average data rate for the 720x480 @ 29.97 fps clip as 3600 kb/s. So when I export to MPEG I set the data rate at 5000 kb/s.
When I process and export the video in Premiere, I have "no fields" selected everywhere, and for the actual export I have selected the "de-interlace" option. Since this is for viewing on computers only, I figured that was the correct thing to do.
Edited: I should also mention that I do not see this effect in the monitor window when I scrub the clip on the timeline.
Dan Heim

The first time I tried with the capture settings reset to LFF, and then tried to export (as uncompressed AVI), specifying "no fields" in the "keyframe and rendering" dialog box, and selecting "deinterlace" in the "special processing" dialog box, I still got those artifacts.
THEN ... after searching the help file for "deinterlace" and reading all the linked pages, I tried right-clicking on the clip on the timeline, went to "video options" / "field options" and selected "always deinterlace." Had to re-render on the timeline. Then, after exporting same as before, the artifacts were finally gone.
So you were correct about it being an interlacing issue. Thanks for the insight! GSpot now reports the exported video as 29.97 frames and 0 fields.
Here's a puzzle though ... I tried the same thing with the original clip (the one captured as progressive instead of LFF) and it smoothed out as well. Perhaps Premiere is smart enough to recognize what it's getting for input, and ignores stupid commands? Whatever, this means I can use my original footage and not have to recapture 1.5 hours of video.
Dan Heim

MPEG Compression Artifacts (aka "Picture Quality Issues")

I can't stomach watching the Broncos / Browns game on NFL Network HD - the signal breaks up with small, rectangualar "compression artifacts" every 10 seconds, or every time there's a sudden movement (like the camera panning to follow the football).
This is what Comcast HD was like, and this is why I switched.
Verizon FIOS HD Picture Quality has gone down the tubes -- very much contrary to the claims of the advertising.

Glenn,
Well, I disagree, so I guess we will just have to agree to disagree.
There are going to be occasional glitches in anything, be it the TV or my car or my house or travel or elections or even my darling wife of 45 years...I have had FiOS TV for 3+ years, and over that time I have very rarely seen pixellation on any channels. I agree, tonight there is some on NFLNet, but I have had the new channels for several weeks now and this is the first time that I can remember anything more than one or two times in maybe 30 minutes. I don't see this as anything more than an unusual occurance that will probably happen again some time in the future, hopefully a long time in the future; I certainly don't see it as a trend, at least until I see it happening regularly.
Just curious, have you reported this to the FSC? I hope you and others have, otherwise Verizon may not even realize there is a problem.
Here is a link to a dslreports.com thread discussing this same issue: http://www.dslreports.com/forum/r21388668-HD-Thr-Nite-Football-on-NFLNET-HD-Pixelating
I guess TV is not just that important to me to worry about a little pixellation. I watch a lot of TV now as I am retired and have some health problems, but gee, it really is only TV.
Justin
Verizon FiOS TV, Internet, and phone
IMG 1.6.0, Build 06.89
Keller, TX
Message Edited by Justin on 11-06-2008 10:21 PM

Compression artifacts on long form video

I have created three 1:45 min. videos on iMovie (multi-cam event shot on professional DVCAM camcorders (Sony DSR-390). When I burned to i-DVD5.1, I was disappointed with the image quality. The movies look great but there are very noticeable compression artifacts against dark backgrounds (the black area "swim" with pixel blocks) on the DVD At first, iDVD required me to use a dual-layer disc which I did and then was able on a second (seperate encode) try to use a standard single layer. The first pass, I used "best performance" preference. The second, I used "best quality." Both deliver slightly different but similarly disappointing results.
One question is: does iDVD 5.1 automatically compress in proportion to the file size/running length? The other is: is there any other tricks that can reduce the compression artifacts without having to go into more professional solutions (Compressor/DVDPro).
I have succesfully burned other long form programs but not quite this long. The most notable quality issues in previous projects were moving pixels blocks showed up on fades ins.
Any thoughts will be greatly appreciated.
Powerbook G4 167MHZ Mac OS X (10.4.5)

Hi DP,
welcome to this forum
iDVD is a consumer tool, so convenience is No1, and the main user gruop is the average "Daddy films son in the zoo" moviemaker... as me!
the specs allow up to 120min, but that pushes as said before iDVD to its limits: iDVD uses a "simple" audio codec (=huge files) and a very high bitrate with projects below 60min (8kB/Sec), that drops (dramatically) when doing longer projects.
switching "performance/quality" is to be translated with VBR/CBR...
you have two (and a half) options:
create two disks
spend $$$$ for DVDSP
all free otpions I do know (ffmpeg) don't allow setting manually bitrates for specific scenes...
silly workaround:
you could add some slight "blurr" on that specific, low key/dark scene, that reduces artifacts too... but ... well, blurrs the scene ..

Compression artifacts in validate dng output - proof attached

I have uploaded a zip file - out.dng is the output of validate dng.
https://dl.dropboxusercontent.com/u/9906333/dngs.zip
Look at the edges of the white chair - you will see classic jpeg compression artifacts.
Note that this is the default lossless jpeg conversion only.
I used the program as
dng_validate -dng out.dng <input>
I confirmed this with a build in Visual Studio using qDNGUseLibjpg=0
I would appreciate the admins looking at the provided examples.

Some suggestions and answer at least the 16 questions at the end of the Wiki article.

Is it possible to update only a part of my apps

Hi, I would like to upgrade my apps, but my iPad2 writes that I don't have enough memory. Is it possible to upgrade only a part of the apps? In the appstore, you can chose either all of them or nothing.
Thank you!

You can update all, or download select App updates one at a time by selecting the app update you want to install.

Is it possible to share only a part of contact.

Hi,
Is it possible to share only a part of an contact? For example: If you have more nubmers and data for one contact (mostly we do) and would like to send someone only one number and not the rest of contact`s data (personal)? I know that on some other phones this is possible. Thanks for answers.

You can update all, or download select App updates one at a time by selecting the app update you want to install.

Accounts can only be part of one Family at a time.

I just upgraded my Mac Book Pro to Yosemite and get the following error when trying to start up Family Sharing
{my appleID} "is used for sharing purchases in another Family. Accounts can only be part of one Family at a time." I'm not sure what that means or how to fix it. I'm only part of one family! I get the same error message trying to start up Family Sharing on my iPhone and iPad.

Hello Bill,
Did you find a way to resolve this problem?
I have the same issue...

When saving my illustrator file to a pdf it doesnt show all the artwork ie boxes are hidden in the pdf or only showing part of them. How can I fix this?

when saving my illustrator file to a pdf it doesnt show all the artwork ie boxes are hidden in the pdf or only showing part of them. Even some text is hidden. I have flattened the artwork so everything is in one layer. How can I fix this?

Hi John
I have indicated on the attached jpeg where the problem is, basically a line of text is missing at the top and part of the feeding diagram is missing. I created the artwork in different layer and then flattened. All text has been converted to outlines, however the areas being affected have no transparency, I have used solid fills or no fills. I get the same result when I export the file as a jpeg. Hope you can help.

I need to edit out parts of a song to cut it down to two minutes for my daughter's talent show. I went to info and it will cut down one part but only one part. I need to put three parts together. I tried adding duplicates of the song to the list but if I

I need to edit out parts of a song to cut it down to two minutes for my daughter's talent show. I went to info/start time and it will cut down one part but only one part. I need to put three parts together. I tried adding duplicates of the song to the list but if If I change the start time on one it will change it on all of them.

In your library, right-click the song you want to edit.
select "get info".
go to "options" and select the start and stop times for your first section of the song.
click "OK".
Find the shortened version of the song in your library. It may take a minute for it to show up. right click it again and select "create (????) version". (the ???? is different for different formats).
The library will spit out a new, second version of the song which you can rename. I suggest you use the original title and add a 1 to the end.
Now you can go back to the other version and repeat the process with a different start/stop time.
Once you are done editing, you can burn all of your versions to a disk, just make sure your interval time is zero so there are no gaps between edits.
To keep the orginal song on your library, just go back to the original and put the start/stop times back to the original settings.

Program monitor only showing part of clip.

Hi
My program monitor only shows part of a clip during playback, though output to an external monitor is fine. If I stop playback and click in the monitor window, the clip is displayed correctly, but reverts back to partial when playing back.
This started happening today after installing Matrox tools update to 5.1 and latest matrox effect patterns. Everything else is perfect inc source monitor.
Have tried may settings changes, new projects old projects, new clips etc etc but its the same every time. Any ideas what has gone wrong? Its been running perfect for last 4 years. Is it worth reinstalling CS5 and would I have to reinstall Matrox also?
Windows 7 system 64 bit; 2 x 2,66 quad xeon processors; 4Gb ram;
ATI 4670 512mb graphics card;
Prem Pro CS5
Matrox RT.X2
Many thanks

Hi
My program monitor only shows part of a clip during playback, though output to an external monitor is fine. If I stop playback and click in the monitor window, the clip is displayed correctly, but reverts back to partial when playing back.
This started happening today after installing Matrox tools update to 5.1 and latest matrox effect patterns. Everything else is perfect inc source monitor.
Have tried may settings changes, new projects old projects, new clips etc etc but its the same every time. Any ideas what has gone wrong? Its been running perfect for last 4 years. Is it worth reinstalling CS5 and would I have to reinstall Matrox also?
Windows 7 system 64 bit; 2 x 2,66 quad xeon processors; 4Gb ram;
ATI 4670 512mb graphics card;
Prem Pro CS5
Matrox RT.X2
Many thanks

Only prints part of photo

I am trying to print a 12x16 in photo from iPhoto using an Epson 1280 printer. Unfortunately, the printer only prints part (about 1/4 of the photo). It then ejects the photo paper as if it were finished with the print job. I downloaded the latest driver from the Epson website. I also tried deleting the .plist file in the Library folder (I ended up restoring it because the next time I launched iPhoto, almost all of my photos were missing). Finally, I also tried creating and printing from a new user account. The only thing that seemed to work was when I tried printing an 8x10 of the same photo (to save ink, I printed it in B/w rather than color, though I can't imagine that made a difference). Incidentally, I had the same problem once before and managed to solve it. Unfortunately, I can't remember how -- my best recollection is that it had something to do with drivers and/or Library files. Any help would be greatly appreciated.

Heather:
The problem is that the Epson 1280 does not support 12x16 borderless prints. From the Epson site:
"It produces captivating borderless 4" x 6", 5" x 7", 8" x 10", letter (8.5" x 11"), 11" x 14" and 13" x 19" color photos"
If you don't need borderless select the paper size that the printer supports that will hold that size print and select a custom sized print in the Print window. It should print in the center of the paper used.
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto (iPhoto.Library for iPhoto 5 and earlier versions) database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've created an Automator workflow application (requires Tiger or later), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. There are versions that are compatible with iPhoto 5, 6, 7 and 8 libraries and Tiger and Leopard. Just put the application in the Dock and click on it whenever you want to backup the dB file. iPhoto does not have to be closed to run the application, just idle. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.
NOTE: The new rebuild option in iPhoto 09 (v. 8.0.2), Rebuild the iPhoto Library Database from automatic backup" makes this tip obsolete.

Compression artifacts only in part of encode

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