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Posts posted by lovemachinez

  1. The function you are looking for is called "Particle Filter" but before you can use it you need to convert your image to binary.

    The image below shows how it can be done in vision assistant.


    If the image is color you will have to extract a color plane then do a threshold.

    Here is the script and the vi that vision assistant created for me

    blob filter.zip

    Good luck

    yeah, Thank a lot.

    by the way, if I got a binary image how can I convert it back to the normal image.

  2. Hi,

    Now I'm using NI LabVIEW 8.5 with IMAQ Vision and a USB Camera.

    I look for some method to detect a group of black color.(I don't know how to say it in English >.< Please see the picture below.)


    -------------100 pixels----------------------30 pixels

    Let say, I have two pictures like this. and I want to detect the group of black color, which have more pixel than 50 pixels. (in this picture is the first one.)

    I can do a bit with the color detection, but in this case how can I know which one have the black color, which are grouping more than 50 pixels.

    So, please help me to do something. and also now I'm trying to improve my English if anything is wrong please correct it for me. (I will appreciate it a lot.)

    Thank a lot.

  3. I have an image from webcam that i want save it in my folder every 1 minute.

    So this is the problem for me that i don't know how to save it.

    I want to save file name "image" + with "number of image"


    1 minute : image1.bmp

    2 minute : image2.bmp

    3 minute : image3.bmp

    n minute : imagen.bmp

    How to do it? Could you please show me the example?

    and what image type savefile fastest ?

    best regards,

  4. QUOTE (Neville D @ Mar 26 2009, 11:36 PM)

    What do you mean "not stable" ?

    Isn't it there at every loop iteration? At every iteration the previous image will be replaced by a new one.


    I mean when i play this vi , many time the display image does not show correctly (Sometime show color , sometime show grayscale, sometime show edge detection....)

    Did you play my vi? if you play my vi. you will understand "not stable" that i mean.

    Best Regard

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