Black pixels breaking up video images intermittently

When a flash video file is playing, such as Youtube, the images are intermittently incomplete. They are broken up by black squares. This lasts for a few seconds and then the images are fine and then they break up again. I'm using Firefox 13 and Flash Player 11.2.202.235. This didn't happen with earlier versions.

I forgot to mention Windows Vista 32 bit.

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Getting random blocks of black pixels in blue areas of image.

For no apparent reason I am opening images where there would be a blue background, and getting blocks or streaks of black pixels. Using CS 5. How do I prevent or correct? Thanks, Jim.

Thank you, that corrected the problem. In a screen shot you would have seen just random scattered blocks of black pixels in place of blue. The blue could be any shade of blue. Can you please explain why disabling the OpenGL Drawing option corrected the problem? Is it primarily a function of incompatability with Photoshop and my video card? Finally am I just primarily sacrificing speed if I were working in 3D. Thanks for any information you may have since it is obvious you know what's going on. Jim

Easy way to put black border around cropped video.

Hi
I was wondering if anyone knows of an easy way to put a 2-3 pixel black border around a cropped, shrunk video clip.
Its kind of a picture-in-picture deal, but the "simple border" filter doesn't take into account the cropped edges. I've also tried drop shadow, but I need it to be hard lines.
Any suggestions (I'm looking for the easy way because I need to apply this effect to about 100 clips, otherwise I'd just put a black colour matte behind the image).
Cheers
Chris.

Layer the Boris Vector Shape generator around your clip. It's a great tool.

Flash video image problem with newest nVidia driver

I've got a very weird display error since the last update. Basically, whenever I play flash video and afterwards close the browser (chromium), any purely black surfaces will display the full flash player image. The effect is only visible in the "first" window of a xmonad tab, that means if I cycle the window positions it will be in a different window. The others are not affected. When I restart X, I can see the flash video image flashing up shortly on the black screen. Restarting X fixes the issue. I cannot take any screenshot of the problem because the error is NOT visible on the screenshot. Therefore I suspect that some frame buffer used for the flash player is not getting cleared properly after exiting the browser, but it's really little more than a wild guess.
As there are multiple components involved, I'm at a loss of where this might be coming from. I hope someone might be able to shed some light on this situation. Please post here if you have the same problem or have any idea why this happens!
My setup:
-nvidia 260.19.36-2
-flashplugin 10.2.152.27-1
-chromium 9.0.597.94-1
-xmonad 0.9.2-1
-xmonad-contrib 0.9.2-1
Last edited by Natanji (2011-02-15 11:33:11)

Natanji wrote:Thanks, that seems like it helped. So this is a flashplayer bug? Was it already reported?
if you asking about a bug reported on arch linux bugtracker, then you are doing it the wrong way.
flash and nvidia are closed source, we can't do anything. A better place is to submit bugs to nvidia and adobe.
Now i see that nvidia 270.26 was released. Maybe you want to check that out:
http://www.nvnews.net/vbulletin/showthread.php?t=159683

Pixel-slop in Photoshop image rotation

See three small bitmaps attached: <<original.bmp>>; <<45cw.bmp>>; <<45ccw.bmp>>.
The original is a simple 21x21 pixel test pattern, black except for white pixels in the center and corners. It's appearance should be the same whether rotated 45 deg clockwise or counterclockwise, and the appearance should keep the symmetry of the original.
I used "Bilinear Interpolation". I used a gamma = 1 profile, and to be extra-safe set Edit>Assign Profile>Don't Color Manage ...
I set the background color to black in the toolbox. Thank you John Joslin.
Then I rotated the original image 45 deg clockwise and counterclockwise to make the other two files. Why to the resulting images look so different? Why are they lacking in symmetry? With the other interpolation methods too, clockwise and counterclockwise rotations give quite unlike images. A partial explanation could be that Photoshop rotates about a point not in the image center, but this doesn't explain enough. I tried 20x20 patterns which showed similar problems.
I'm mostly interested in bilinear interpolation because this is supposed to conserve the total pixel value. Each white pixel in the original has value 255, so the blob resulting from this pixel should have total value 255. Look at <<45cw.bmp>>.The blob on the left has total value 69+94+13+5+18+1=200. The blob on the right is an almost perfect antipode with total value 1+18+6+13+95+68=201. The blob at the bottom doesn't resemble the side blobs and has total value 42+56+40+3+55=196. The blob at the top has total value 40+41+56=137. Clearly Photoshop has lost the top of the top blob. (It also does this with 45 deg counterclockwise rotation, and also with 135 deg rotation.) The blob in the center has total value 49+49+48+47=193. All of the blobs fall far short of 255. Photoshop might be excused for messing up edge pixels, but not a central pixel.
Photoshop messes up rotation at the single pixel level. I made a test pattern with clusters of 4 white pixels and the rotation of this did conserve the total value for the central four. Edge pixels still showed problems. Photoshop image rotation appears to be based on sloppy code.

Then how do you account for my post 11? How to you account for X2 detecting a extra hidden row on the left and top side of of the image? There is no hidden row on the bottom or rightside.
Adobe digimarc did not detect anything.
Paint Shiop Pro X2 digimarc did.
I have posted the proof. It is not my fault that Adobe digimarc addon cannot detect the watermark.
The watermark is there.
dcouzin wrote:
Fantasy watermark. First of all a black pixel isn't a watermark. It can't "hide" a watermark. Hiding has no meaning in this context. If the file header has a digital ID that's fine, but it's not "hidden" in the image, not under a black pixel.
All of your reported O=255 data is not in the image either. There aren't enough bytes in the file to specify opacity at each pixel. This is a 24-bit RGB image not a 32-bit RGBO image. Maybe O=255 is specified globally somewhere in the header, but I don't see "FF" anywhere in the header. More likely full opacity is presumed for a RGB image.
THERE IS NO WATERMARK.
I suggest you download BinViewer 2.0 and BinEditor 2.0 which are freeware. Look at the file <<original.bmp>>. You will count 114 zeros between the first "FF FF FF" and the next "FF FF FF". 114 divided by 3 equals 38 so "00 00 00" appears 19 times between the "FF FF FF"s. Hey, that's the 19 black pixels between two of the corner white pixels. Now you can use BinEditor 2.0 to change some of the "0"s or "F"s to anything you want. You can write "dec9" in there. Save and open in Photoshop to see what you've painted. It's great fun creating colors and shapes by poking numbers into a file. It's the opposite of Photoshop's glistening gliding paintbrushes, and it has a powerful truth.
This is why I want to know what Photoshop does when, for example, it rotates an image.

Pixel dimensions for still images

Hello all,
I have just ran into a problem that seems to be a sizing problem with Final Cut Express HD. I used to crop my still pics to 1366 px - 768 px (for landscape) and then import them to FCE and export as a quicktime movie. When I brought the quicktime movie into iDVD and created the DVD it seemed to play great on my 46" Samsung tv -- full screen.
I just recently bought a Samsung 60" and when I create the same type of movies, I am getting a huge black border around the whole image (not just top and bottom but sides too). I tried creating a new movie and made all my still images 1920px x 1080 px, and it still comes out the same way.
I can stretch my tv so that they go full screen, but I think there should be a way to create the movie without having to stretch it....just have the tv set for 16:9, and I feel that it should work.
Any help would be greatly appreciated...thanks.
Norm

When you create a DVD, no matter what the pixel dimensions of your original material, it become 720x480 Standard Definition. This is what a DVD is. If you are creating a DVD that has material that is 16x9, then it creates a DVD that is 720x480 but plays back anamorphic, stretching to create the 16x9 screen.
If you play one of your older DVDs that played correctly on your previous TV, does it play correctly or does it also exhibit the black bars?
If it plays correctly then something has changed in the way you are creating your project in FCE.and encoding and burning the DVD.
If the older DVDs also exhibit the same playback problem, then I believe there is a menu setting on your new TV that will tell it how to display Standard Definition material from your DVD player, and you need to adjust that. (There are also settings in the set-top DVD player that tells it what kind of signal to send based on the what kind of display it is hooked up to.)
MtD

I get every time after rendering four black bars around the video, I would like to fix this because it is not really professional.

sorry for my poor english, I have a problem with adobe premiere elements 12 when I render I get a video black bars on all sides of the screen, which makes the video smaller. How do I fix this?

Bram Bakker
Are you OK with translating the language English to Dutch? Have you been using the Translate button at the bottom right of the posts to translate what is written in English to Nederlands (Dutch)? Is the major problem that you cannot find the locations that I point to in Premiere Elements?
1. What are the properties of the video that you are putting on the Timeline? The quick way to find this
information is knowing brand/model/settings of the camera that recorded the video on the Timeline.
From this question I am trying to find out what the properties are for your video - video compression, audio compression, frame size, interlaced or progressive, file extension, pixel aspect ratio. I was hoping that you could tell me the brand/model/settings of the camera recording the video so that I could find the information myself.
2. What are you setting (manually) or the project (automatically) as the project preset that will match
the properties of the video that you are importing? If you do not know, then tell us what you see under
Edit Menu/Project Settings/General and the readouts for Editing Mode, Timebase, Frame Size, and Pixel
Aspect Ratio, even if the fields look grayed out.
Besides knowing the properties of your video, it is just as important to know the project settings. Are you setting them yourself or just dragging the video to the Timeline and letting the project set the project preset automatically? If you are doing nothing, then the answer is that the project is doing the setting automatically.
Either way, you can find out what is being set by going to Edit Menu/Project Settings/General and looking for the reading that you see in the following screenshot.
3. The next big question is "What do you mean by rendering?"
Do you see these black borders after you render the Timeline content in the Edit area to get the best
possible preview of what you are seeing in the Edit area monitor?
or
Do you see these black borders after you go to Publish+Share/ and export the Timeline video?
If your "rendering" refers to the export of the Timeline, please tell us Publish+Share/and then what?
This question 3 should not need a screenshot. The question is where are you seeing the black border in your video.
a. When you are in the Edit Area of the program and you press the Enter key of the computer main keyboard or the Render
button above the Timeline.
or
b. After you have exported your Timeline using Publish+Share/ and one of the export paths.
Please see if any of the above helps. If it does not, then let us try this. In Dutch if you want, describe in your own words
what you are doing in much more detail and post screenshots of the areas involved on your Premiere Elements 12.
Then I will deal with interpreting what you wrote.
We want you to succeed. So whatever way works, that is the way to go.
The answers are in the details.
Thank you.
ATR

Black background for transparent PNG images - Xcelsius 2008 SP4

Hi Experts,
I am using Xcelsius 2008 SP4. I have used Image component to show a PNG image with transparent background. When I export the flash, the image is being shown with a black background.
In Xcelsius 2008 SP3, this problem was not there. I am facing this issue after installing SP4.
Did anyone else face similar issue ? Is there any workaround ?
regards,
pasg

Hi all,
I was facing the very same issue. I succeeded in finding a solution to it. This is happening coz of the dimension and pixels of the .png image. I imported the image in the image component, which had the dimensions, 175 x 70, and was of 9.26 kb and the black background was visible. I then changed the dimension of the image to 428 x 140, and 19.2 kb (double the size), and VOILA!! to my surprise IT WORKED !
Don’t forget to “check” the “embed file” and “Hide SWF Background Color” check boxes in the image component's, general tab.
Try the same, I hope this helps.
Regards,
Sara

How do I get non-pixelated quality for imported image?

I want to import a high quality image from Photoshop into Final Cut Express 4.0 and be able to watch the clip
on fullscreen without loosing too much quality. The quality decreases to a very pixelated version of my image
and does not look good at all. Any suggestions?

Exactly what is the image - TIFF? JPEG? PNG? Something else?
What is the image size (pixel dimensions)?
What are your sequence settings in FCE?
FCE prefers JPEG images, and ones that do not require a huge amount of scaling to fit into the video frame. Keep in mind that a video frame is 720x480 (DV-NTSC), 720x576 (DV-PAL), 1280x720 (HD), 1920x1080 (HD), or 1440x1080 (HDV non-square pixels). You don't need much more resolution than that to get a good video image.

PE9 - occasional black screen instead of video clip

Hi,
I have Adobe Premiere Elements 9.0.1 and windows XP SP3. In general, I don't have any problems with the software. However, occasionally, the video clip that I have imported in timeline become black (with sound OK). The rest of the clips are OK. Sometimes it helps to restart the program. But then sometime other clip is with black video. The thing is that when I do rendering, if a clip in the timeline was with black video it is then also rendered as a black part of the video.
Any idea how can I fix it? I updated the program. I also downloaded videorenderer.dll as was suggested on some other site without results.
Thank you.

From nvidia's site they don't show a 8400 ES. Do you mean 8400SE? Although "new" to you it is actually quite old (by technology standards) - a 2008 product. So the graphics drivers provided with the card will be ancient. You should get and install the most recent version (266.58WHQL) from nvidia.
While your at it check all these other basics as well:
Install all Windows Updates.
Install latest version of Apple QuickTime (v7.6.9 at time of writing). Even if you don't use QuickTime, PRE relies heavily on it.
Install most recent graphics and sound drivers from the manufacturers web sites.
Install PRE9 v9.0.1 update.
Delete BadDrivers.txt (use windows search to find it)
Run Disk Cleanup.
Run Defragmenter.
Reboot your PC.
Temporarily disable any anti-virus realtime scanning.
And give us some information about your clips and hardware:
Use the GSpot Codec Information Utility to analyse the file and post screen image.
What project preset did you use?
Where did the clip come from?
How did you get it into PRE?
Post back here with the necessary information described here: Got a Problem? How to Get Started
Cheers,
Neale
Insanity is hereditary, you get it from your children

Video image problem

Hi...A neighbor has a iMac G5 and has developed a video/image problem. The iMac boots up and sometimes shows an ok screen for a little time, sometimes not. What emerges is an array of digital black on white graphic line images (maybe I should upload a picture), but makes the screen virtually impossible to see what you want to view, thus rendering the computer useless.Any thoughts as to what this is, seems like a hardware vs, software issues, but can't say for sure. What might it be: video card, other hardware on or attached to the logic board..and mostly could it be repaired (by self or reasonable). Any and all thoughts or experience welcome as I've been no help to my good neighbor friend on this one:)..Rick

me 2 it's clear .. the new firm has poor quality than the original one...sadly .. my n93i now has quality like n70 help!!!!!!!!!!!!!!!!!!!!!

Draw line between black pixel : coordinates of selected pixels ?

Hi
I want to build a script which can check a Photoshop file and :
- find black pixel
- for each black pixel, look for another black pixel within maximum distance of 5 pixels
- then draw a line between the two black pixels.
I wrote this script below (my first script ...), but it's VERY slow (and my final image is VERY big), I think because I test the colour for each pixel of the image.
So another solution would be to first select black pixel with magic wand, then the script save all coordinates of selected pixels, then my script wil test only this pixels (less than 1% of the pixels are black in my image).
Is it possible with JavaScript ?
Thank you for your response !
Marc
function main(){
var startRulerUnits = app.preferences.rulerUnits;
app.preferences.rulerUnits = Units.PIXELS;
var myHeight = app.activeDocument.height;
var myWidth = app.activeDocument.width;
// Find black pixel
for(var i=5; i<myWidth; i++) {
for(var j=5; j<myHeight; j++) {
   activeDocument.colorSamplers.removeAll()
   var sampler = activeDocument.colorSamplers.add([new UnitValue (i, 'px'), new UnitValue (j, 'px')]);
   if (sampler.color.rgb.hexValue === "000000") {
// For each black pixel, search another black pixel below left up to 5 pixels
    for (var m=i-5; m<i; m++) {
     for (var n=j+1; n<j+5; n++) {
      activeDocument.colorSamplers.removeAll()
      var test = activeDocument.colorSamplers.add([new UnitValue (m, 'px'), new UnitValue (n, 'px')]);
      if (test.color.rgb.hexValue === "000000") {
// Then draw a black line between the two black pixels
       var FillColour = new SolidColor;
       FillColour.rgb.hexValue = '000000';
       var ad=activeDocument;
       ad.selection.select([[m,n],[i,j],[m,n+1],[i,j+1]], SelectionType.REPLACE, 0, true);
       ad.selection.fill(FillColour);
       ad.selection.deselect()
// For each black pixel, search another black pixel below right up to 5 pixels
     for (var m=i+1; m<i+5; m++) {
      for (var n=j; n<j+5; n++) {
       activeDocument.colorSamplers.removeAll()
       var test = activeDocument.colorSamplers.add([new UnitValue (m, 'px'), new UnitValue (n, 'px')]);
       if (test.color.rgb.hexValue === "000000") {
// Then draw a black line between the two black pixels
        var FillColour = new SolidColor;
        FillColour.rgb.hexValue = '000000';
        var ad=activeDocument;
        ad.selection.select([[i,j],[m,n],[m,n+1],[i,j+1]], SelectionType.REPLACE, 0, true);
        ad.selection.fill(FillColour);
        ad.selection.deselect()
main();

The first alert should have shown the first pathPoint.anchors for all the subPaths in the path.
The xyArray is just something I added for the alerts. The array 'myPathInfo' should have all the info extracted from the path.
myPathInfo.length will tell you how many subPaths are in the Path.
myPathInfo[index].entireSubPath.length will tell you how many pathPoints are in that subPath
myPathInfo[index].entireSubPath[index].anchor will tell you the position of that pathPoint.
The indexes start with zero.
The bounding box of the entire subPath can be hard to work out just from the pathPoints. Unless all the point are corner points the path may extend beyond the anchors. One think you can do is create a new path from just one of the subPaths, convert by to a selection, and then get the bounds from the selection. You can make a new path from a subPath using the 'myPathInfo' array from above.
app.activeDocument.pathItems.add("myPath1", [myPathInfo[0]]);
That line will make a new path from the first subPath. Change the index to use a different subPath.
Some other info that may help.
app.activeDocument.histogram[0] will tell you how may black pixels are in the document. But its no help determining where they are. If that returns 0 there are no black pixels.
If you don't have any luck working with converting the original color range selection into a path and need to go back to searching with the colorSampler it may help to use a grid approach. For example make a square selection, the size depending on how scattered the black pixels are, say 25x25px. Then use color range to select black. With an active selection it will only select pixels in that selected area( if any). You could then check to see if there is a selection. If not make another same size square to the right edge of the last area. If there is a selection, the solid property will tell you if more than one black pixel was selected( unless they are right next to each other ). If solid == true the selection bounds will tell you where the pixel is. If false you have to then search that square. But if there are areas where there are no black pixels checking a square range of pixels at once should be quite a bit faster than checking every pixel. And checking the historgram first will let you know if you should bother searching to start with.

32 bit HDR - black pixel speckling when Remove Ghosts checked

Hi,
I'm using LR4.4, PS CS5 12.0.4, OS X 10.6.8. I'm able to view the 32 bit TIF back in LR, but when I zoom in to 2:1, I can see obvious speckling of mostly black pixels in various dark parts of the image. This only happens when I have Remove Ghosts checked. I actually had just thought of doing a test without it checked to confirm my suspicion, and I was right. Unfortunately I need it checked for some of the images with motion.
http://tv.adobe.com/watch/the-complete-picture-with-julieanne-kost/qui ck-tip-creating-32bit-hdr-images-in-lr-41/
Thanks,
John
Here's a very noticeable example. Others are less apparent.
http://www.johnmaclean.com/32bit_black1.png
And I'm getting these dialogs, which I don't think have any relevance.

I am having a similar problem with Merge to HDR from Lightroom 4 to CS6.
First of all, here is the dark exposure processed entirely in Lightroom. As you can see there is good shadow detail and no blown highlights:
I
Now here is the image using the darkest and lightest (of 3 exposures) manually blended. Here the shadow detail is naturally better (although it isn't obvious on the small image shown here):
Now here is the image from HDR Pro with remove ghosts on the darkest of the 3 images. As you can see there is very bad (practically no) shadow detail (look at the hillside on the left):
Here is the HDR Pro with remove ghosts on the middle of the 3 images. As you can see the clouds are badly blown/posterised:
And here is the HDR Pro with remove ghosts on the most over-exposed image. As you can see the sky is completely messed up:
Essentially unusable for this sort of image. Hope this gets fixed soon!!

Ever since I upgraded iPhoto to 9.5, my camcorder videos aren't all downloading properly and I have several of the videos to say a necessary data reference could not be found. I also can see many of the pixels on the video footage that was downloaded???

ever since I upgraded iPhoto to 9.5, my camcorder videos aren't all downloading properly and I have several of the videos to say a necessary data reference could not be found. I also can see many of the pixels on the video footage that was downloaded. Anyone have any suggestions???

What version of iPhoto and system are you using? Also what camera make and model are you using?
See if you can download all of the videos to a folder on the Desktop using Image Capture and import into iPhoto from that folder.
OT

Strange black pixels appearing in photoshop but not in bridge, help?

First Photo is viewed in Adobe Bridge (Print Screen Image)
Second Photo is viewed in Photoshop (Print Screen Image)
Third Photo is saved as JPEG in Photoshop (Print Screen Image) - Notice no strange black pixels
Sorry there's no consistency in crop but why am I seeing these strange black pixels and why do they disappear when saved as jpeg or same photo viewed in different viewing software? Please help.
Thanks in advance for all your time and understanding.

A bug in AMD/ATI graphics driver. Update to Catalyst 13.2 beta 5. See thread: Black pixels on certain colours

Black pixels breaking up video images intermittently

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