Overlay bitmap image onto video

I'm just starting to play around with the image overlay functions the vision toolkit provides, but one issue has stumped me early on. We are capturing VGA video and want to overlay a bitmap image of a graph built from the data collected. The image right now is 400x144, which should be small enough to fit into the video's 640x480 frame. I thought this would be a simple plug-and-play procedure where I could take a bitmap file, read it, and overlay it, but it seems that is not the case. The bitmap overlay VI requires the array from the bitmap to be two dimensional, while the read bitmap file VI puts out the information in a 1D array. I've tried reshaping the array into two dimensions, but the closest I have been able to come can be seen in the graph example picture below, while the actual graph I wish to display is labeled export. Any ideas on how to cleanly display this image?

Hey totally_wired,
Have you seen our image overlay examples
on the NI Developer Zone? Be sure to check out the common
questions and issues for the image overlay functions as well. If you have the Vision Development Module
software, these examples
may also be helpful.
Could you send your VI so that we can take a look at how
exactly you are doing the overlay? It never hurts to have a second (or Nth) set
of eyes look at it

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How do I overlay an image onto video

Hello
I found a tip on how to create a mask in Photoshop, then overlay it onto iMovie. But the example video was so small I could not follow it.
My requirement is that I shoot video of say a computer screen, then I want to make a blurred out portion of the screen image in Photoshop, then overlay it back onto the video footage. I want to do this to blur out any private information, for example a username or password.
Can anyone help, please?

I want to do this to blur out any private information, for example a username or password.
With iMovie, I would normally do this as a post edit in QT Pro. Simply create your "mask" and layer it over the information you wish to protect. By using the "Add to Selection & Scale" option, you can then set the proper duration automatically, as well as, set the location to "cover" the exact area needed. Would assume this might also be possible in iMovie, but would require a PNG with "Alpha" channel to be dropped on your original clip and then manually adjusting the duration and would still likely require QT Pro to set the proper alpha-channel "mask" option later. Assume ther may be other ways to do this.

How to superimpose still images onto video?

Hi there,
I'm an absolute beginner with iMovie (and video editing in general), so please forgive my ignorance!
OK, my question is this: Is it possible to superimpose still images on top of video in iMovie, and if so how? I'm using iMovie because it has a reputation for ease of use, and yet I can't figure out how to do this... Basically, all I want to do is take a single piece of video about 5 minutes long and periodically fade in and fade out some still images on top of the action. Am I being too ambitious here?! Should I just give up on the idea...?!
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Thanks.

Just in case anyone else is interested in doing something similar - I found two (commercial) solutions to this problem:
Gee Three software's 'Slick 4 - Hollywood edition' plug-ins package includes 'Picture-in-Picture' - $50 (also includes three other great effects): http://www.geethree.com/slick/V_04.html
cf/x's 'Picture in Clip (Static)' does exactly the same, but only costs a bargain $1.50 - available here: http://www.imovieplugins.com/plugs/pictinclipstat.html
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How to overlay an image onto separate layers while maintaining separate layers and adding no layers?

I have a 6400x6400 image that I have divided into 100 640x640 layers. I want to overlay an separate image over the entire 6400x6400 document while making the individual layers hold part of the overlayed image.
An anaology would be this:
Imagine that I have created a giant board (6400x6400) and I have cut it into small pieces, where each piece is it's own layers. I want to put a picture to that entire puzzle, so that each layer holds a part of the picture and the picture is not it's own layer, but made up of the smaller layers.

Here's one way to do it, I added the image in as a new layer, and used Clipping Masks to clip them to the layers.
You can merge them into one layer by selecting both layers, right click and Merge Layers:
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How to overlay bitmap dvd_subs with ffmpeg.

For anyone who is interested, or needs help with this.
Overlaying bitmap dvd_subs onto an output video with ffmpeg.
Another words, making a video from a DVD, selecting a subtitle stream, overlaying the
subtitles onto the video without having to convert the subs to another format and then
doing OCR on them.
If you can't find the sub streams with ffmpeg -i or ffprobe it's probably
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that with
ffmpeg -probesize 1000000000 -analyzeduration 100000000 -i video.vob
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These examples will be for a disk that has video stream 0:0, 1st audio stream 0:1,
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options to encode the audio-video.
In the first example:
Overlay dvd_subs onto video (1st vid stream 0:0, 2nd audio stream 0:2, 2nd sub stream 0:4).
ffmpeg -probesize 1000000000 -analyzeduration 100000000 -i movie.vob \
-filter_complex "[0:0][0:4]overlay[0]" -map [0] -map 0:2 -c:a copy \
-c:v libx264 -b:v 2500k movie.avi
In the second example:
Do the same thing a little differently. Stream one is 0, stream two is 1 etc.
ffmpeg -probesize 1000000000 -analyzeduration 100000000 -i movie.vob \
-filter_complex "[0:v][0:s:1]overlay[v]" -map [v] -map 0:a:1 -c:a copy \
-c:v libx264 -b:v 2500k movie.avi
Third example:
Overlay dvd_subs onto video with video cropping and subtitles scaled to fit
the video.
Video cropped=a, Subs scaled=b, Overlay(b over a)=c
ffmpeg -probesize 1000000000 -analyzeduration 100000000 -i movie.vob \
-filter_complex "[0:0]crop=706:362:8:56[a];[0:4]scale=706:362[b];[a][b]overlay[c]" \
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What exactly are you wanting the result in the image viewer to be (just one image at a time or the whole array of images)? Also, I would recommend posting this question as a new thread in the Measurement Studio forums. Posting a new thread will open up your question to even more users and therefore have a better chance of having an ongoing discussion with multiple users. The forums for Measurement Studio can be found at the following links:
http://forums.ni.com/t5/Measurement-Studio-for-NET/bd-p/232
http://forums.ni.com/t5/Measurement-Studio-for-VB6/bd-p/230
http://forums.ni.com/t5/Measurement-Studio-for-VC/bd-p/231
Daniel K | NI Applications Engineer | Certified LabVIEW Developer

How to project an image onto a background image?

Hi,
I am looking for help with projecting an image over another image.
I am looking for a similar effect to the image above where it looks like the image of the player as (physically) been projected onto the tunnel.
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Overlay a still image over video.

I am editing a lot of video and have a need to lay an image over the video, like down the left column or even across the bottom.
What I am doing is editing footage of a poker game we filmed and I want to be able to display the players' hole cards like they do on TV.
Does anyone have a solution for this? I've looked and looked with no success.
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Best practice to put overlay images on video?

Hello community!
I would like to know what's the best way to put overlay images on videos, like ads ( actually ads )
I'd like to animate them and all that stuff, the thing is I believe I know how to do it, but I'm not sure.
On the one side I image that i should create a plugin to manage them, and a MediaElement to put them inside.
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Yes, you're on the right track. See this sample app for some additional guidance:
http://opensource.adobe.com/svn/opensource/osmf/trunk/apps/samples/framework/LayoutSample/
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I made a video in imovie and saved it, now i want to carry on making it from where i left but every time i try to add an image onto the end it just goes tot he wrong part of the movie, how do i just add it onto the end?

I made a video in imovie and saved it, now i want to carry on making it from where i left but every time i try to add an image onto the end it just goes tot he wrong part of the movie, how do i just add it onto the end?

Have you seen my User Tipp here
"Movie Magic" with Stills and Dissolve
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How can I keep overlay image on 8 bit image at video acqusition?

Hi, I am using AVT camera Pike with Laview vision 2012
When I use Example code 'Grab and Attributes Setup.vi' (<NI supported Example),
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Image------[IMAQ Overlay Oval]--------Image
Rectangle Control ---|
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Is it bug or what am I wrong?

upload the error situation block diagram
Attachments:
8bit overlay error1.jpg ‏364 KB

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--------------------------------------------------------------------------------------------------------------------------------------------------------------If you find this helpful, pl. hit the White Star in Green Box...

Overlay bitmap image onto video

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