The only effects software for the mac I have found is camtwist - which has some interesting effects, but not chroma key.
I would be willing to buy a new external web cam if it came with the software to do this.
any ideas
Thanks
bob

MacBook Pro, Mac OS X (10.5.5), Late 08 MacBook Pro 2.53GHz,4GB Ram, OS X (10.5.5), iPhone 3G (2.2), Parallels 4
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- 4K Ultra HD video up to 3840x2160
- Real-time drawing while recording
- Over 24 hours without stopping
How to use Chroma Key for Webcam Overlay
Green Screen Recorder
Jun 05, 2011 Live Key Software Hi, the fact that I don't know how to start a new thread on here speaks to my lack of tech knowledge. So, I'm trying to run a live feed from my Canon HV40 into my laptop, run it into a chromakey program and put in a movie that has pause points (exported from Keynote), then output the final product live to monitors (just like in a news studio). Chroma Key, also known as Green Screen, is a visual effect of layering or compositing two images together by using color. It's heavily used in the post-production of movies, TV shows, and the news.The bright green is the color of choice because it doesn't match any skin tone and won't be easily found in objects, but a bright blue is also a. Using Chroma key with Screen/Game Recording Software. We used to combine two videos into one video with the chroma key feature of video editing software such as Adobe Premiere or Sony Vegas. Nowadays, if you have a screen recording program and webcam, you can simply make a chroma key video in real-time while recording your computer screen.
What is Chroma key?
Chroma key is a visual effects technique for layering two video streams together. The most common example of Chroma Key is the weather news. The weatherman is not actually standing in front of weather map, he is actually standing in front of a blue or green screen. The blue or green background is digitally removed and replaced with the image of a weather map.
Chroma Key Live “keys out” selected areas of live video, allowing a background to show through. It features Syphon I/O, HD resolutions and full GPU acceleration. A few years ago, some of my students were doing a green-screen shoot and needed to visualize the chromakey while shooting, so their actors could see the composite while they performed. ChromaCam is a Windows desktop application which works with a standard webcam and all leading video chat apps such as Skype, Webex, Zoom, Hangouts and broadcast apps such OBS and XSplit.
Using Chroma key with Screen/Game Recording Software
We used to combine two videos into one video with the chroma key feature of video editing software such as Adobe Premiere or Sony Vegas. Nowadays, if you have a screen recording program and webcam, you can simply make a chroma key video in real-time while recording your computer screen. Mac preview reduce pdf size.
Free app like iphoto for mac. Since Mac OS X 10.10.3 released, Apple Company showed Photos for OS X, but for iPhoto users, it would not be that happy. Like who get used to Aperture, Photos for OS X do lack of some functions. As well, for Windows users who cannot use iPhoto, is there any way to satisfy the need of those PC & Mac users?
These steps will teach you how to use chroma key with screen recording software.

Download screen recording software which supports Chroma Key.
Click here to download the free version of Bandicam.
Use mac graphic app to change png color. World's simplest online Portable Network Graphics color changer. Just import your PNG image in the editor on the left, select which colors to change, and you will instantly get a new PNG with the new colors on the right. Free, quick, and very powerful. Import a PNG – replace colors. Jan 26, 2010 Question: Q: Change Background Color on PNG Image I have a PNG image on which I would like to change the background color. I have looked at Preview and PDFpen, so far no luck, although both apps seem to have tools for altering 'Fill' color (Preview's is greyed-out even though my user account has Read and Write over the file).
Go to the Webcam tab and check the 'Add webcam overlay to video' option.
Start Bandicam, click the 'Settings' button under the 'Video' tab and check the 'Add webcam overlay to video' option under the 'Webcam' tab. (Check 'Preview webcam on screen' and 'Enable preview toggle hotkey' to enable/disable the preview screen.)
Check the 'Use Chroma Key' option and click the webcam background.
Click the [Select] button and click the background of the video in the preview screen and set the 'Similarity', 'Blend' to adjust the spectrum of colors.
Once you start recording, you will see your face in the recording video.
1) PowerPoint presentation - eLearning Video (PiP)
1. I can't remove the background of a webcam.
To remove a background of a webcam, you should record in front of a blue or green background with the appropriate lighting. It is the best way to make a transparent background. (You can purchase a Chromakey Green Screen Kit from Amazon.com, eBay.com, etc.)
Free cad software for mac ppc. Please also adjust the 'Similarity' and 'Blend' option to make a perfect transparent background.
Chroma Key Software Download
2. How to turn on/off the webcam screen
If you want to turn on/off the webcam screen while recording, check the 'Save webcam video as separate file (.mp4)' option and use the preview toggle hotkey.3. I can't use the Chroma Key and webcam overlay function.
- Bandicam 4.2.1 or a higher version supports the real-time Chroma Key function.
- If you use a USB webcam/capture device, please plug the device into a USB 3.0 slot.
- You can't use Chroma Key while recording. If you click 'Use Chroma Key', you will only see the black screen on the preview screen.
- For more information, refer to https://www.bandicam.com/how-to/video-capture/#faq
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Bandicam
One of the best screencast software which allows you to record your computer screen, system sound and microphone. Best compact flash recovery software mac pro.
- Capture 4K Ultra HD videos up to 3840x2160
- Record over 24 hours without stopping
- Upload a captured video to YouTube