Crop video captures all

Hello gentlemen,

For my project I undertake acquistion PPG without contact. I am trying to capture my webcam, but with all of the image, I get a lot of noise in the signal. I found using code samples provided by my supervisor in MATLAB that my webcam is capable of recording at 30 fps.

I joined a video capture for treatment in other programs. Currently, the VI records to a text file.

How would you suggest that I crop the video images before being caught or processed, I need this for two reasons, 1. the entire image generates noise and 2. reduce the footprint of output file.

I have attached the VI for reference. To run a file in the file path text must be designated for the VI to run and a session for your WEBCAM.

Regards Sean

P.S Vision required.

If you open your camera in MAX, there may be for the width and height properties. You can create a property on your in camera session node and to use these names as 'active' attribute, and then set the 'value' with a string or numeric.

Tags: NI Software

Similar Questions

  • Satellite Pro A60 video Capture problems

    I have the following system:

    Toshiba A60 laptop Pro satellite
    CPU - AMD 2.8 Ghz
    RAM - 768 MB
    OS - XP Pro SP2

    All other system requirements as indicated by the Dazzle DVC90 USB 2.0 capture card are met.

    I use Pinnacle Studio 9.4 update to capture VCR.

    Problem:

    When I plug the DVC90 to my laptop, I get nothing on the preview window. I have it set to capture as quality DVD Mpeg. But I don't see a gray screen when I look at the overview. I click start capture, the timer starts but no capture is made, either by audio or video.

    I checked all the settings. They all seem to be fine. My friend tried the capture card USB with exactly the same settings and connection on his desktop PC and it worked perfectly. The specification of his PC is similar to my laptop. Is it a familiar fault with video capture on laptops?

    I'd appreciate it if someone could help me with these problems.

    Thank you very much

    Alex

    Hi Alex,

    Have you checked in your Pinnacle capture settings that is not failing to the incorrect entry (rather than Composite, S-video). Obviously the value specified must match your connectivity of material allowing to receive a video signal.

    I think that it is also possible to disable the capture preview screen to minimize the risk of frame drops. Please check that you have the active video preview.

    HTH

  • Satellite Pro L300 - no video capture hardware

    Hi all, I'm new to the Forum so apologize me if this question has already been answered previously.

    I am trying to connect a USB Webcam to my Satellite Pro L300-153. Wizard installs the webcam and updates the drivers etc, but trying to work webcam a mistake happens "* webcam works not properly no video capture hardware detected."

    Can someone advise please. Thanks for your help.

    Hey Buddy,

    In my opinion, you must contact the manufacturing of this USB webcam. I put t know which model you have, etc. and there it s a Toshiba forum so I think that no one can tell you if it s associated with driver problem or camera itself.

    But I put t understand why do you use an external webcam. AFAIK all Satellite L300 are equipped with internal webcam

  • How to start and stop the video capture in a state machine

    Hello

    I am a student of neuroscience and this is what I try to do: 1) trigger a camera to GigE (200 FPS), 2) start the video capture, 3) triggers a light that stays on for x milliseconds, 4) trigger a valve that will blow an air puff, 5) stop the tone and the valve at the same time and 5) stop the video capture 1 second after 4). For this, my VI is a state machine, with a State for each trigger (ex, 1 State for trigger camera 1 State of light of trigger, ect) and a statement to "stop" and a "time-out State." Everything worked except the video acquisition - the program could trigger the camera but only acquire a frame, because it was not running in a while loop and this is my first question: for an acquisition video is it always necessary to have a while loop?
    I guess the answer is Yes, so I built a loop of 'consumer' for the camera. A queue of the pre-trial 'trigger camera' in the loop of producer, I was then able to start the video capture, but now the problem is to stop it at the right time. I have an another queue in the State of 'stop' in the loop of the producer, but is not able to start the State 'stop' in the loop of consumer, I think that maybe it's because the loop of consumer gets "stuck" in the whole loop.

    I hope you can help me, the VI is attached. Thank you!

    Hello

    First of all, in your loop producer: STATE 'Stop', you use the flushing line, then there is no need to use 'item queue at the opposite end. You can use the enqueue function.

    Secondly, you said "I moved the command stop inside the while loop as you said, but it did not work. But if you look closely, you moved "Enqueue function" inside the while loop. Instead you should use Dequeue function. Please, look at the picture I posted an orderly manner.

    And remove the circled (i.e. function. Enqueue function loop of consumption, where I wrote 'Why stop here').

    Try now.

  • Screen dump of memory when you try to install the video capture device

    I have a Pinnacle Studio movieBox more peripheral of video capture that I am trying to install, but everytime that I plug it into a USB port it will say it is to install the drivers and then immediately go to a screen dump of memory and restart.  I emailed Pinnacle about this and they don't seem to be any help at all, and after giving me a suggestion told me to contact my manufacturing of computer which is me, because it's custom built, or Microsoft.  Does anyone have ideas, what could be bad?

    I was unable to find it, but it seems that a faulty USB port was the problem that I plugged into another and installed without any problems.

  • Crop video size

    Hello. I am using first Elements 8. I am wanting to reframe the actual dimensions of a video, I'm working on... the video is of someone who speaks and is quiet close. I would like to be able to crop the video, so all the extra on the sides has completely disappeared. I put this on my site and I have a limited space where the video can go. I tried the crop tool but it crops just video itself down, not the actual size as exports or the frame. Is this possible? Thank you.

    Remember that video cropping is not as to crop a photo. You can't just cut what you don't want and change the shape of the frame in the process.

    As Hunt says, a video frame is a fixed size - usually of 720 x 480 pixels.

    If you change the scale of your video - essentially do larger so that it fills in the video image - that could make your larger video, if that is what you are looking for. The image size does not change. The size of your video changes it contains.

    The challenge is that your video has a fixed resolution. And "blow" by increasing the scale may look blurry or pixilated.

  • Video Capture problem

    Hello, I posted the following in Photoshop Elements group, and it was suggested I post here instead, so here is...

    I use a trial version of Photoshop Elements 7.0 (with about 3 weeks before I have to buy or lose it to the left).

    It seems that I'm having a problem of image of my video device Dazzle DVC100 capture

    File > import > Dazzle DVC video peripheral

    The video appears in the window, but I get the following error message when I click on the button "capture":

    "Current driver incorrect STI detected for the video capture device, please re - install the driver."

    I have re-installed all drivers from the manufacturer, twice from disk and once more after you download the drivers from the website of the manufacturer (in case something is wrong on the software CD).  I also reinstalled the program Photoshop with a new copy of the program to download.

    The device works fine in other software programs.  I guess I was able to capture the video in one of them then work with images in Photoshop Elements but I would like to know if this "bug" can be solved somehow.

    My old days of Pinnacle forum, I remember nothing else problems, even with the Pinnacle software. I don't remember everything posted a question never able to do a glare.

    Now, I have to admit that there were probably millions of people who did and never had the Forum. Yet, all the failures indicated that it was not a good camera, when I went looking for an A - D option.

    Hunt

  • Qosmio G30-155: video Capture does not work using s-video in port

    Toshiba Qosmio G30-155 video capture does not work via the ports of the video (Windows Vista Ultimate x 86) victory of version 3.90 BIOS
    Video capture does not work in Windows Media Center, even if selected as ports of entry port composite or s-video in Windows Media Center settings.

    In the BIOS version 3.90 parameters via esc - F1 can only select this option: NTSC (USA), NTSC (Japan), PAL (S-video).

    It is worth noting that the laptop is supposed to be capture NTSC for composite input mode

    Someone turned to make this model of video capture for laptop, via composite video input with the new version of the BIOS (version 3.90 win)?

    Can you please explain what you want to do exactly?

    Many years ago I had this old Qosmio with TV tuner and antenna in port so I used it to transfer my old VHS format videos and burn movie DVDs.

    To this end, I didn't use Windows Media Center. Why you n t use other recording applications. I think that everyone is better than Windows Media Center.

  • SHOWBIZ DVD 2 analog video capture on my E10

    ShowBiz DVD 2 analog video capture on my E10.

    Stu

    Eric, I really don t understand you. First Movie Maker is part of the Microsoft software and you get it with Windows XP. What producer can do is to test it with own product. I'm sure you know that Movie Maker is developed for editing movies and not for recording of TV programs. WinDVD creator is also very good for editing movies.

    Second, you cannot say that you cannot save your favorite TV channel. This function is also integrated into WMC. If you don't like it, or you are not satisfied, you must look for the best solution.

    The same thing has been with me. I was not satisfied with the program to burn and I bought a new one with more options.

    Good bye

  • Qosmio G10 video capture analog.

    Help, please!

    Is someone can help me find a way to run analog video capture on a Qosmio?
    I need to transfer a lot of analog video from a camcorder, I tried winDvd, Moviemaker, I installed Magic Video Deluxe Pinnacle Studio 9 version complete, but it seems that no one of these software is able to recognize and capture the video source. Only the digital acquisition is OK. It's very frustrating!

    Thank you very much
    Massimo

    Hi, I have also just spent the last two hours trying to capture video from my analog camera. I can't understand how to do that either. I can watch the video on my screen to switch signals with Fn + 4, but I can't access the video signal via any software.

    Has anyone else got this yet understood problem?

  • Video capture with Equim M70 problem

    Can someone please?
    I installed vista on my Equium M70 and now when I connect my camcorder to the laptop and try to capture a video, he said:
    "No video capture driver installed, cannot build the preview graph.
    Where can I find the driver or is there something else I need to install?

    Hello

    Can you please tell me how cam you have exactly? What happens when you connect your webcam for laptop and turn it on? Cam is properly recognized by the operating system or the error message occurs in the software you use for video capture (Vdeostudio 10plus)?

  • When I tried to import pictures from my camcorder videos seem to be import of Strontium.  After finished importing is not found the videos at all.  Any ideas?

    When I tried to import pictures from my camcorder videos seem to be importing into "Strontium".  After finished importing is not found the videos at all.  Any ideas?

    What is "strontium"?

    There are 9 different versions of iPhoto and they run on 10 different versions of the operating system. Tips and tricks for dealing with issues vary depending on the version of iPhoto and the version of the operating system. In order to get help, you need to give as much information as possible. Include things like:

    -What version of iPhoto.

    -What version of the operating system.

    -Details. Full, a description of the problem as you can. For example, if you have a problem with export, then explain by describing how you try to export and so on.

    -History: Is it going hard? Everything has been installed or removed? -Are there any error messages?

    -Have what measures you already tried to solve the problem.

    -Something unusual on configure your? Or how you use iPhoto?

    Anything else you can think of that could help someone understand the problem you have.

  • video capture card

    We would use a video streaming with our new Compaq Elite 8300 SFF.  Which video capture card are recommended for this model?

    You can try the following cards:

    • AMD Radeon HD 6350 (512 MB)
    • AMD Radeon HD 7450 (1 GB)
    • NVIDIA NVS 300 (512 MB)
    • NVIDIA NVS 310 (512 MB)

    Reference: http://www8.hp.com/in/en/products/desktops/product-detail.html?oid=5232852

  • Pavilion Elite m9452p: Flying Blind with a HP Pavilion Elite m9452p - no video at all - HELP!

    It is a Core 2 Quad Q8200 processor Intel PC with 8 GB of RAM and 750 GB drive HARD + 1 TB back up drive running Windows 7 Ultimate 64 bit (it came with Vista 64-bit home edition Premium, but updated for win 7 just now).

    It has always worked perfectly, but last week there was no video at all when I turned it on. The monitor says 'No Signal' on an otherwise black screen when turned on.

    HDD lights indicate activity and I can hear readers spinning and the LEDs for the DVD and the wireless signal light up as well.  In addition, ports Ethernet led Flash and show activity, as does the DVD player if I put a disc, but no video at all.

    I did the following to try to resolve this problem:

    1. I checked the monitor I was using is working;

    2. I always connected this PC to another monitor DVI to work with no luck.

    3. I have connected the PC to a working VGA monitor with no luck.

    4. I connect the VGA monitor to the VGA port, integrated with no luck.

    5.i tried to boot in the BIOS, but there again, no video is not sure if it goes to BIOS or not;

    6. I have read somewhere that the built-in VGA port will not work if a video card is present, so I removed the video card of exisitng and connected to the VGA integrated with no luck;

    7. I bought a replacement video card (it came with a MSI V240 500 MB PCIex16 card and got a card XFX Radeon HD 5450 1 GB PCI ex16); I installed the new card and tried again without success;

    8. I don't remember if this PC was set to beep on the POST before he always started quickly and without problems. Now that I'm looking for any beeps, I don't hear everything but yet once, can't remember if it still beep before;

    9. looks like it's a hardware problem, but I also tried to boot from a drive of W7 64 Bit repair, but even once, no video so don't know if it works.

    The last thing I remember having seen it was a Windows Update I think to include an optional update to the video driver. I don't remember if I acdcpeted that one or not, but it seems to me that the drivers for the MSI card (nVidia, GE Force pilots I think) that does not correspond with an AMD Radeon graphics card drivers - this is why I opted to get the Radeon card).

    I have not tested the original map, mainly because I don't have any PC with which test (I have a Core 2 Duo Pc with a PCI slot ex but not an ex16 PCI card. I don't know if this card would be retro-compatible with this PC or not).

    I vaguely recall disabling the onboard VGA in the BIOS, but do not remember if it is with this PC or another.

    I hope someone has a way to put video on so I can uninstall all recent drivers or updates that may have caused this (or I can enable VGA integrated in the BIOS).

    I sure hope the MoBo is not messed up (it does not fuel upward hard drives, the DVD player and the fans, etc.) but with no video, it is difficult to know what is happening.

    Help!

    OK - SOLVED!

    After re-reading my post, I realized that if the BIOS for the integrated video card setting had actually been changed, I could re - put these default settings by resetting the CMOS.

    I had not tried to clear the CMOS by the cavaliers to the MoBo, so I'm the manual MoBo and I cleared the CMOs (which would reset the BIOS to factory settings). I restarted the PC and voila! I now have the video!

    Sometimes the simplest things will solve the whole problem!

    I felt bad that I couldn't solve this problem, as I can usually solve everything that came out on any of my systems, but here I answer my questin oiwn and solved the problem - I hope this will help others too!

  • pavilion23: new HP Pavilion 23 videos are all green, no problem with audio

    Brand new HP, videos are all green, although there is no problem with the audio.

    Hello

    If you are using Internet Explorer, try the following.

    Open an Internet Explorer window.

    Hold down the alt key and press x, and then select Internet Options.

    Select the Advanced tab, enter a check mark in the box "made software use instead of GPU rendering', then click on apply then Ok to save this change.

    Close all the open Internet Explorer Windows, then open it again and try to play a video.

    Kind regards

    DP - K

Maybe you are looking for

  • How to index external disc el capitan

    I would like to index my external drives (unless there is a reason I shouldn't). How can I go about it?

  • Error code 80240016 failed to update Windows Update

    Hello I've recently noticed that I had problems installing anything new from microsoft.  Last week, I tried to download internet explorer 8, but he repeated that the link was broken.  Then I tried to download other things on the microsoft Web site, a

  • The full signal on WRT120N

    Hi all, I am new to this community, but I am using Cisco products for years. I have install my router by myself, I'm not a newbie, but tonight I did a restore to factory default on my router because I found a few problems of slowness on internet (ver

  • Optiarc DVD RW AD7710H driver does not install

    Separated from this thread. I have exactly the same problem with my Optiarc DVD AD-7710 on Sony laptop and I also uninstall and sought changes to the equipment and the updated driver to update, but unfortunately the problem was not solved at all. The

  • 'Receive via Bluetooth' blackBerry smartphones is no longer there

    I used to use the option "Receive via Bluetooth" in the media to receive files from my PC, but suddenly I don't have this option more and my BT is enabled and combined. The recipient's BlackBerry smartphoneOn the smartphone home screen, select suppor