Re: Integrate IMAQ Vision picture into frontpanel
Hello, > > If you are using a previous version of LabVIEW but you have IMAQ > Vision (which it sounds like you do), you can display the image in a > WindDraw window. Here is an example that demonstrates the use of the As I'm using the version 6.1 I've found that solution with the window already. The thing I'm searching for seems to be the possibility of the version 7. So for the moment I have to do with the window.solution. Thanks Felix
Integrate IMAQ Vision picture into frontpanel
Hallo, I hope I'm in the correct newsgroup here. I've just begun to work with Labview. I'm working on several little demonstration programs, to show the principles of image acquisition. Now I'm searching for a possibility to integrate the pictures in the format that is used by the IMAQ vision library directly in the front panel. Til now I have not found a solution to that problem. Is there someone who could give me a tip, how to solve this problem. If theres only a high complicated solution, then no need to reveal it, because I'm just a beginner, and so not yet able to understand complicated solutions. I thank you all Felix Leo
Re: Integrate IMAQ Vision picture into frontpanel
Hello, > > This two dimensional array can be displayed in an Intensity Graph on a > LV6.1 front panel. This solution works for me. I've already tried it out. I really thank you very much. Greetings Felix
Re: Integrate IMAQ Vision picture into frontpanel
Hello > > This solution works for me. I've already tried it out. I really thank you > very much. > I've tried a little more, with some logical operations (and or ...) of grayscale pictures, sometimes, theres color in the displayed result-image. Something must be wrong. Any Idea? Felix
Re: Integrate IMAQ Vision picture into frontpanel
> I've tried a little more, with some logical operations (and or ...) of > grayscale pictures, sometimes, theres color in the displayed result-image. > Something must be wrong. Any Idea? > The logic on the image and the display of the image are really unrelated. You can take a color image and display as grayscale at any point or take a grayscale and apply a false color colortable at any time. Anyway, I suspect that your logic operations are working fine. The intensity graph always maps the data to the range of 0-255 and applies a color table. It does this for integers as well as floats. If the color ramp of the color table contains color, that would explain it. If it is totally gray and you are seeing color, it may be a bug in the intensity graph. If this doesn't help, either post again with more information about how the intensity graph is setup, or try turning on interpolation on the intensity graph. Greg McKaskle
Re: Integrate IMAQ Vision picture into frontpanel
Your other option is to use IMAQ Image to Array. This converts the Image data into a two dimensional array of U8's, I16's, or Floats, depending on the type of image that was originally created. This two dimensional array can be displayed in an Intensity Graph on a LV6.1 front panel.
Re: Integrate IMAQ Vision picture into frontpanel
Hi, Felix, I believe what you are asking is how to display images on a LabVIEW front panel. If you are using LabVIEW 7, there is now an embedded front panel control that you can use for image display. This control is found in the following location on the Controls Palette: Controls >> Vision >> Image Display. If you are using a previous version of LabVIEW but you have IMAQ Vision (which it sounds like you do), you can display the image in a WindDraw window. Here is an example that demonstrates the use of the WindDraw window: http://sine.ni.com/apps/we/niepd_web_display.display_epd4?p_guid=B45EACE3DB9156A4E034080020E74861&p_node=DZ52490&p_source=External";>Developer Zone Example: High-level Grab in IMAQ Vision Display I hope this helps! Best wishes with your application. Best regards, Dawna P. Applications Engineer National Instruments
Re: Integrate IMAQ Vision picture into frontpanel
Perhaps you can find help here: http://sine.ni.com/apps/we/niepd_web_display.DISPLAY_EPD4?p_guid=B45EACE3EB3756A4E034080020E74861&p_node=DZ52505&p_submitted=N&p_rank=&p_answer=&p_source=External or here: http://zone.ni.com/devzone/conceptd.nsf/webmain/0E9074660DFFA7A38625685E007F5771?opendocument Hope that helps...
Re: Integrate IMAQ Vision picture into frontpanel
Hello Felix: First, is that you have to remember that ordinarily LabVIEW does not come with IMAQ or Vision tools as a single package and so you have to learn them separately but ultimately integrate them together in application. There is a set of toolset called "picture control" (early version in LV4.1 to LV5.1?) you can begin from. Assuming you have good grasp of image file types then start downloading NI examples that enables you to read an image, convert them to a matrix form (spreadsheet) and back or into different format. If you have a scanner that can save in TIFF,PNG,BMP or JPEG you could use those files to read them into your routines.
