IMAQ made 2 Ellipse

Similar Questions

• Follow the circle with overlay

  Hello

  I have a few messy data a camera. It's a pattern of concentric circles that changes with the times - each ring splits into two, each of these components of movement away form between them. I want to set up a set of these rings.

  Someone could point me in the right direction or have any advice for a strategy game start? I thought I could use the superposition of the ring the user select a set of rings, and then somehow have the overlay 'follow' the data he was moving (easy or hard?).

  I removed the components of acquisition IMAQ and took a series of images, load them into a loop to try to show the effect as an animation (vi and associated data).

  Any help would be appreciated.

  I watched this example: http://forums.ni.com/t5/LabVIEW/Fit-2D-data-in-to-Circle/td-p/668858/page/2?view=by_date_ascending
  who can be of some use if I manipulate data, but is it the right way to go?

  And have tried to use machine vision-> analytic geometry-> control 'IMAQ made circle 2', but there is no example vi or tutorial for this control (or most of the other tools of analytic geometry).

  so not sure exactly how it works.

  Thank you

  I'd probably watch the line profile.  If it is noisy or has spots, you might on average several radial lines (up, down, left, right) to get more consistent data.

  Ridge detection would probably find the part the clearest of each circle and could find maximums the.  You could treat these to find what you are looking for.  Two very close circles would probably be identified as a single peak.  Looking at the data would be the first step.

  You can use overlays draw the circles located on the original image.  This would help you to know if you followed them correctly.

  Bruce

• Shadow with .jsx

  I have thousands of images cropped bottle and I would like to add a shadow (made with ellipse-> Gaussian blur, blur movement) at the bottom of each with .jsx. I have a lot of difficulties because the bottle images have different dimensions, and I would also change the size of a shadow. I need a script! could someone help me?

  Here, it's with the addition of 300 to the canvas

  app.activeDocument.suspendHistory ("bcm_addShadow", "main()");

  main() {} function

  makeShadow (15, 4.5, 2.49, 25.49, 70); / / These values are procents

  arg1: this x to add to the selection of elised compared to the width of the layer

  Arg2: the procent to add to the selection of elised compared to the height of the layer of y / / obsolete

  Arg3: this blur

  Arg4: motion blur procent

  $arg5: this opacity

  }

  function makeShadow (xPrc, yPrc, blurPrc, mBlurPrc, shOpacPrc) {}

  = first to add 300 px autour

  var idCnvS = charIDToTypeID ("CNV");

  var desc9 = new ActionDescriptor();

  var idRltv = charIDToTypeID ("Rltv");

  desc9.putBoolean (idRltv, true);

  var idWdth = charIDToTypeID ("Wdth");

  var idPxl = charIDToTypeID ("#Pxl");

  desc9.putUnitDouble (idWdth, idPxl, 300.000000);

  var idHght = charIDToTypeID ("Hght");

  var idPxl = charIDToTypeID ("#Pxl");

  desc9.putUnitDouble (idHght, idPxl, 300.000000);

  var idHrzn = charIDToTypeID ("Hrzn");

  var idHrzL = charIDToTypeID ("HrzL");

  var idCntr = charIDToTypeID ("Cntr");

  desc9.putEnumerated (idHrzn, idHrzL, idCntr);

  var idVrtc = charIDToTypeID ("Vrtc");

  var idVrtL = charIDToTypeID ("Retix");

  var idCntr = charIDToTypeID ("Cntr");

  desc9.putEnumerated (idVrtc, idVrtL, idCntr);

  executeAction (idCnvS, desc9, DialogModes.NO);

  var btLayer = app.activeDocument.activeLayer;

  var btLayer.name = lyrN;

  lb var = getLBounds();

  var lw is parseFloat (lb.right) - parseFloat (lb.left);.

  var lh is parseFloat (lb.bottom) - parseFloat (lb.top);.

  var percW = (lw * xPrc) / 100;

  Var pole = (lh * yPrc) / 100;

  = get the substantive limits

  var lidx = getSelectedLayersIdx();

  var percWT = (lw * 20) / 100;

  var percHT = (lh * 20) / 100;

  makeSquareSelection (lb.bottom - percHT, lb.left, lb.bottom, lb.right);

  app.activeDocument.selection.invert ();

  makeShadowLayer();

  var tlidx = getSelectedLayersIdx();

  selectLayerTranspByIDX (parseInt (lidx));

  substractLayerTranspByIDX (parseInt (tlidx));

  // =======================================================delete temp layer

  var idDlt = charIDToTypeID ("Dlt");

  var desc240 = new ActionDescriptor();

  var idnull = charIDToTypeID ("null");

  var ref221 = new ActionReference();

  var idLyr = charIDToTypeID ("Lyr");

  var idOrdn = charIDToTypeID ('Ordn');

  var idTrgt = charIDToTypeID ("Trgt");

  ref221.putEnumerated (idLyr, idOrdn, idTrgt);

  desc240.putReference (idnull, ref221);

  executeAction (idDlt, desc240, DialogModes.NO);

  LCB var = app.activeDocument.selection.bounds;

  lcbO = {top: parseInt(lcb[1]), right:parseInt(lcb[2]), left:parseInt(lcb[0]), bottom:parseInt(lcb[3])};}

  app.activeDocument.selection.deselect ();

  = finished find substantive obligations

  var selW = (pole, lcbO.right + percW)-(lcbO.left-percW);

  var pH = (selW / 6.77)/2;//keepeng all elipsoids for the same report)

  makeElipsoidSelection (pH, lcbO.bottom - pH, lcbO.left - percW, lcbO.bottom + lcbO.right + percW);

  offsetSelection (-pole/2, 0); rising a bit selection

  makeShadowLayer();

  // =======================================================

  var idnewPlacedLayer = stringIDToTypeID ("newPlacedLayer");

  executeAction (idnewPlacedLayer, undefined, DialogModes.NO);

  selH var = (lb.right + bass)-(lb.left-perche);

  selcH var = (lcbO.right + bass)-(lcbO.left-perche);

  Alert (selH)

  var blurPercH = (selcH * blurPrc) / 100;

  Blur (blurPercH);

  var MblurPercH = (selcH * mBlurPrc) / 100;

  mtnBlur (parseInt (MblurPercH));

  // =======================================================move layer down

  var idmove is charIDToTypeID ('move');.

  var desc312 = new ActionDescriptor();

  var idnull = charIDToTypeID ("null");

  var ref283 = new ActionReference();

  var idLyr = charIDToTypeID ("Lyr");

  var idOrdn = charIDToTypeID ('Ordn');

  var idTrgt = charIDToTypeID ("Trgt");

  ref283.putEnumerated (idLyr, idOrdn, idTrgt);

  desc312.putReference (idnull, ref283);

  idT var = charIDToTypeID ("T");

  var ref284 = new ActionReference();

  var idLyr = charIDToTypeID ("Lyr");

  var idOrdn = charIDToTypeID ('Ordn');

  var idPrvs = charIDToTypeID ("Prev");

  ref284.putEnumerated (idLyr, idOrdn, idPrvs);

  desc312.putReference (idT, ref284);

  executeAction (idmove, desc312, DialogModes.NO);

  app.activeDocument.activeLayer.name = lyrN + "Ellie"; Rename shadowlayer

  // =======================================================set opacity

  var idsetd = charIDToTypeID ("setd");

  var desc317 = new ActionDescriptor();

  var idnull = charIDToTypeID ("null");

  var ref288 = new ActionReference();

  var idLyr = charIDToTypeID ("Lyr");

  var idOrdn = charIDToTypeID ('Ordn');

  var idTrgt = charIDToTypeID ("Trgt");

  ref288.putEnumerated (idLyr, idOrdn, idTrgt);

  desc317.putReference (idnull, ref288);

  idT var = charIDToTypeID ("T");

  var desc318 = new ActionDescriptor();

  var idOpct = charIDToTypeID ("PCT");

  var idPrc = charIDToTypeID ("#Prc");

  desc318.putUnitDouble (idOpct, idPrc, shOpacPrc);

  var idLyr = charIDToTypeID ("Lyr");

  desc317.putObject (idT, idLyr, desc318);

  executeAction (idsetd, desc317, DialogModes.NO);

  app.activeDocument.activeLayer = btLayer;

  }

  function getLBounds() {}

  Var ref = new ActionReference();

  ref.putEnumerated (charIDToTypeID ("Lyr"), charIDToTypeID ('Ordn'), charIDToTypeID ("Trgt'));

  DESC1 = executeActionGet (ref);

  DESC1 = desc1.getObjectValue (stringIDToTypeID ('bounds'));

  desc1Top = desc1.getUnitDoubleValue (stringIDToTypeID ('top'));

  desc1Bottom = desc1.getUnitDoubleValue (stringIDToTypeID ('bottom'));

  desc1Left = desc1.getUnitDoubleValue (stringIDToTypeID ('left'));

  desc1Right = desc1.getUnitDoubleValue (stringIDToTypeID ('right'));

  rObj = {top: desc1Top, left: desc1Left, low: right desc1Bottom: desc1Right};

  return rObj;

  }

  function selectLayerTranspByIDX (idx) {}

  var idsetd = charIDToTypeID ("setd");

  var desc205 = new ActionDescriptor();

  var idnull = charIDToTypeID ("null");

  var ref179 = new ActionReference();

  var idChnl = charIDToTypeID ('channel');

  var idfsel = charIDToTypeID ("FSC");

  ref179.putProperty (idChnl, idfsel);

  desc205.putReference (idnull, ref179);

  idT var = charIDToTypeID ("T");

  var ref180 = new ActionReference();

  var idChnl = charIDToTypeID ('channel');

  var idChnl = charIDToTypeID ('channel');

  var idTrsp = charIDToTypeID ("TN");

  ref180.putEnumerated (idChnl, idChnl, idTrsp);

  var idLyr = charIDToTypeID ("Lyr");

  ref180.putIndex (idLyr, idx);

  desc205.putReference (idT, ref180);

  executeAction (idsetd, desc205, DialogModes.NO);

  }

  function substractLayerTranspByIDX (idx) {}

  var idSbtr = charIDToTypeID ("rBST");

  var desc213 = new ActionDescriptor();

  var idnull = charIDToTypeID ("null");

  var ref193 = new ActionReference();

  var idChnl = charIDToTypeID ('channel');

  var idChnl = charIDToTypeID ('channel');

  var idTrsp = charIDToTypeID ("TN");

  ref193.putEnumerated (idChnl, idChnl, idTrsp);

  var idLyr = charIDToTypeID ("Lyr");

  ref193.putIndex (idLyr, idx);

  desc213.putReference (idnull, ref193);

  var idFrom = charIDToTypeID ("from");

  var ref194 = new ActionReference();

  var idChnl = charIDToTypeID ('channel');

  var idfsel = charIDToTypeID ("FSC");

  ref194.putProperty (idChnl, idfsel);

  desc213.putReference (idFrom, ref194);

  executeAction (idSbtr, desc213, DialogModes.NO);

  }

  function makeSquareSelection (top, right, left, btom) {}

  var idsetd = charIDToTypeID ("setd");

  var desc167 = new ActionDescriptor();

  var idnull = charIDToTypeID ("null");

  var ref135 = new ActionReference();

  var idChnl = charIDToTypeID ('channel');

  var idfsel = charIDToTypeID ("FSC");

  ref135.putProperty (idChnl, idfsel);

  desc167.putReference (idnull, ref135);

  idT var = charIDToTypeID ("T");

  var desc168 = new ActionDescriptor();

  var idTop = charIDToTypeID ('Top');

  var idPxl = charIDToTypeID ("#Pxl");

  desc168.putUnitDouble (idTop, idPxl, top of page);

  var idLeft = charIDToTypeID ("Left");

  var idPxl = charIDToTypeID ("#Pxl");

  desc168.putUnitDouble (idLeft, idPxl, on the left);

  var idBtom = charIDToTypeID ("Btom");

  var idPxl = charIDToTypeID ("#Pxl");

  desc168.putUnitDouble (idBtom, idPxl, btom);

  var idRght = charIDToTypeID ('Rght');

  var idPxl = charIDToTypeID ("#Pxl");

  desc168.putUnitDouble (idRght, idPxl, right);

  var idRctn = charIDToTypeID ("Rctn");

  desc167.putObject (idT, idRctn, desc168);

  executeAction (idsetd, desc167, DialogModes.NO);

  }

  function makeElipsoidSelection (top, right, left, btom) {}

  var idsetd = charIDToTypeID ("setd");

  var desc15 = new ActionDescriptor();

  var idnull = charIDToTypeID ("null");

  ref10 var = new ActionReference();

  var idChnl = charIDToTypeID ('channel');

  var idfsel = charIDToTypeID ("FSC");

  Ref10.putProperty (idChnl, idfsel);

  desc15.putReference (idnull, ref10);

  idT var = charIDToTypeID ("T");

  var desc16 = new ActionDescriptor();

  var idTop = charIDToTypeID ('Top');

  var idPxl = charIDToTypeID ("#Pxl");

  desc16.putUnitDouble (idTop, idPxl, parseInt (top));

  var idLeft = charIDToTypeID ("Left");

  var idPxl = charIDToTypeID ("#Pxl");

  desc16.putUnitDouble (idLeft, idPxl, parseInt (left));

  var idBtom = charIDToTypeID ("Btom");

  var idPxl = charIDToTypeID ("#Pxl");

  desc16.putUnitDouble (idBtom, idPxl, parseInt (btom));

  var idRght = charIDToTypeID ('Rght');

  var idPxl = charIDToTypeID ("#Pxl");

  desc16.putUnitDouble (idRght, idPxl, parseInt (right));

  var idElps = charIDToTypeID ("ELP");

  desc15.putObject (idT, idElps, desc16);

  var the idAntA = charIDToTypeID ("AntA");

  desc15.putBoolean (the idAntA, true);

  executeAction (idsetd, desc15, DialogModes.NO);

  }

  function makeShadowLayer() {}

  // =======================================================

  var idMk = charIDToTypeID ("Mk");

  var desc169 = new ActionDescriptor();

  var idnull = charIDToTypeID ("null");

  var ref153 = new ActionReference();

  var idLyr = charIDToTypeID ("Lyr");

  ref153.putClass (idLyr);

  desc169.putReference (idnull, ref153);

  executeAction (idMk, desc169, DialogModes.NO);

  var b = new SolidColor();

  blck. RGB. Red = 0;

  blck. RGB. Green = 0;

  blck. RGB. Blue = 0;

  app.activeDocument.selection.fill (blck);

  app.activeDocument.selection.deselect ();

  }

  function of blur (ss) {}

  var idGsnB = charIDToTypeID ("GsnB");

  var desc65 = new ActionDescriptor();

  var idRds = charIDToTypeID ("Rds");

  var idPxl = charIDToTypeID ("#Pxl");

  desc65.putUnitDouble (idRds, idPxl, ss);

  executeAction (idGsnB, desc65, DialogModes.NO);

  }

  function mtnBlur (ss) {}

  var idMtnB = charIDToTypeID ("MtnB");

  var desc226 = new ActionDescriptor();

  var idAngl = charIDToTypeID ("Marko");

  desc226.putInteger (idAngl, 0);

  var idDstn = charIDToTypeID ("Dstn");

  var idPxl = charIDToTypeID ("#Pxl");

  desc226.putUnitDouble (idDstn, idPxl, ss);

  executeAction (idMtnB, desc226, DialogModes.NO);

  }

  function getSelectedLayersIdx() {/ / get the index of selected layers (position in the layer editor)}

  var selectedLayers = new Array;

  Var ref = new ActionReference();

  ref.putEnumerated (charIDToTypeID ('Dcmn'), charIDToTypeID ('Ordn'), charIDToTypeID ('Trgt'));

  var / / desc = executeActionGet (ref);

  Add var = 1;

  If (hasBackground ()) {alert ('gebunden'); add = 0}

  If (desc.hasKey (stringIDToTypeID ("targetLayers"))) {}

  DESC = desc.getList (stringIDToTypeID ('targetLayers'));

  var c = desc.count

  var selectedLayers = new Array();

  for (var i = 0; i)<>

  selectedLayers.push ((desc.getReference (i). getIndex()) + add);

  }

  } else {}

  Var ref = new ActionReference();

  ref.putProperty (charIDToTypeID ('Rprp'), charIDToTypeID ("ItmI'));

  ref.putEnumerated (charIDToTypeID ('Lyr'), charIDToTypeID ('Ordn'), charIDToTypeID ('Trgt'));

  SRS = (hasBackground)? executeActionGet (Ref), .getInteger (charIDToTypeID ('ItmI')) - 1:executeActionGet (ref), .getInteger (charIDToTypeID ('ItmI'));

  selectedLayers.push (srs);

  }

  Return selectedLayers;

  }

  function hasBackground() {/ / function to check if there is a background layer}

  var RES = not defined;

  try {}

  Var ref = new ActionReference();

  ref.putProperty (charIDToTypeID ("Rprp"), charIDToTypeID ("Nm"));

  ref.putIndex (charIDToTypeID ("Lyr"), 0);

  executeActionGet (ref) .getString (charIDToTypeID ("Nm"));

  RES = true;

  } catch (e) {res = false}

  return res;

  }

  function offsetSelection (x, y) {}

  var idTrnf = charIDToTypeID ("Trnf");

  var desc356 = new ActionDescriptor();

  var idnull = charIDToTypeID ("null");

  var ref314 = new ActionReference();

  var idChnl = charIDToTypeID ('channel');

  var idfsel = charIDToTypeID ("FSC");

  ref314.putProperty (idChnl, idfsel);

  desc356.putReference (idnull, ref314);

  var idFTcs = charIDToTypeID ("CIE");

  var idQCSt = charIDToTypeID ("QCSt");

  var idQcsa = charIDToTypeID ("Qcsa");

  desc356.putEnumerated (idFTcs, idQCSt, idQcsa);

  var idOfst = charIDToTypeID ("Ofst");

  var desc357 = new ActionDescriptor();

  var idHrzn = charIDToTypeID ("Hrzn");

  var idPxl = charIDToTypeID ("#Pxl");

  desc357.putUnitDouble (idHrzn, idPxl, y);

  var idVrtc = charIDToTypeID ("Vrtc");

  var idPxl = charIDToTypeID ("#Pxl");

  desc357.putUnitDouble (idVrtc, idPxl, x);

  var idOfst = charIDToTypeID ("Ofst");

  desc356.putObject (idOfst, idOfst, desc357);

  var idIntr = charIDToTypeID ("Introduction");

  var idIntp = charIDToTypeID ("Intp");

  var idBcbc = charIDToTypeID ("Bcbc");

  desc356.putEnumerated (idIntr, idIntp, idBcbc);

  executeAction (idTrnf, desc356, DialogModes.NO);

  }

• Line appears when you apply the drop shadow on a large scale

  Hello!

  A few weeks ago, I had to make a graph on a large scale (800mmx2000mm) a roll-up banner. I wanted to apply a shadow to a rounded shape and ugly lines came. Because it's a little urgent, I decided not to use.

  But now I'm curious, so I quickly made an ellipse and added a shadow, so you will know what I mean. This also happens when I save it in pdf or image format.

  

  Maybe one day I'll have to use a drop shadow on a large scale. Then, someone knows how to fix this problem or what I could do in case I need to use this effect in these conditions? I use Illustrator CS6 in Mac with the Mavericks.

  Thanks in advance.

  Check and see that it is also.

  

• Cutting the path of shapes to a group of shapes

  Hi guys!

  Im a new user of illustrator for my problem maybe noobish, but please be kind and help me.

  I want to make one shape as if it was composed of hexagons grouped in B. the hexagons of B are grouped and form has made two ellipses and function plan less first ball pathfinder.

  

  I tried all the functions of pathfinder all forms, but some do not give a result (I don't need explanation for this) and some do not work as I want.

  I hope you understand what I want to create, and will help me. Thank you

  With the selected clipping mask go to object > clipping mask > content change to be able to change the color of the hidden objects.

  Here's what it looks like content change

  

• How can I fill between paths made by the Ellipse tool?

  Here is a simple example of what I'm working on

  Created using the Ellipse tool

  I would try to fill the spaces between the circles, as both left and right.

  By reading the discussions and assistance from Adobe, it seems that the best way to do this using the live paint bucket, so what I tried to do is select the paths, then click the selection using the pot of paint, but here is the message that appears when I do:

  Should what conversion I do to allow the filling between possible paths?

  What kind of paths are those ellipses that does not make them compatible with live paint Buck?

  Thanks in advance for you help everyone, it is much appreciated.

  Will be

  It's funny how things work.

  Just realized that when you select the paths, I had included the guides.

  It was the problem, so all sorted... Thanks for the help!

• Highlight the option IMAQ Oval overlay

  Hello fellow programmers.

  I was wondering if someone could explain the following: why are there no draw option 'flagship' in IMAQ oval overlay, even if the overlay IMAQ rectangle has this option?

  No simple alternative workaround solution? I am move 3D and tries to display the color gradient based on these movements on a picture 2D for clarity. I could I think using a rectangle, but the shape of the ellipse suits me better...

  Thank you and best regards,

  K

  
  

• How to use IMAQ detected Shapes.vi

  Hi all

  I learn NI Vision, I don't understand how to use IMAQ detected Shapes.vi to detect shapes, such as lines, ellipses, who can give me an example, thank you.

  Hello

  This function uses the edges of the object and try to adapt with different shapes such as rectangles, lines, or some cirles.

  First of all, you need to set parameters to extract the edges of your objects. You Brown the threshold (in order to find the correct edges of your object). You can then choose the parameters of the shape to fit. For example if you want to adjust with a circle, you set the min and max possible RADIUS.

  Try this with vision assistant, it will be easier. And try also with fine contrasting images.

  Concerning

• IMAQ vs NI Vision

  Hello...  First of all a question about IMAQ...  I've seen many examples of LabVIEW which includes IMAQ VI...  What is necessary to own or buy to access these IMAQ vi?  Second, what is IMAQ versus NI Vision?  NEITHER Vision a more recent name for what was IMAQ or is it something else entirely?

  I have a Developer Suite license and thanks to that I have many versions of LabVIEW Professional Developer Suite (PDS) LabVIEW through LabVIEW 2011 7 (does not have 2012).  But I don't have any specific modules vision/image...  All I really want to do is open a specific. TIF image and view this image on a LabVIEW front panel led.  Short of owning any IMAQ or NI Vision vi, made the main PDS provides the tools I need to do this simple task?

  And again, I'm lost in the word soup.  What is IMAQ as compared or contrasted with NI Vision?

  Thanks bob...

  Hello Bob,

  There is a lot of information to analyze through this question, let thus starts at the top.

  NEITHER Vision is the platform of any vision that NEITHER has to offer. This can be broken down into two basic categories; Hardware and software. Hardware includes our smart cameras, Vision systems shipped, Frame Grabber cards (PCI, PXI, PCIe, SMU) and other material. The software can be decomposed into Vision Development Module (VDM) and the Vision Builder for Automated Inspection (VBAI). Sorry to throw in acronyms, but it will save some typing over the long term.

  Vision Development Module, is the great global toolkit for LabVIEW Vision applications. The Vision Development Module includes several pieces of small software. These software include Machine Vision algorithms and several other pallets of treatment as well as the software of Acquisition Vision (SAV), which can be broken down into three additional parts. Here's where we come to the VI IMAQ, Vision Acquisition Software includes IMAQ IMAQ i/o and IMAQdx. IMAQ and IMAQ i/o are free software, and IMAQdx isn't.

  Here's a quick preview

  OR Vision

  • Hardware solutions
  • • Smart cameras
    • Embedded Vision systems
    • PC and PXI systems
  • Software
  • • Vision Builder for Automated Inspection
    • Vision Development module
    • • Machine Vision algorithms
      • VI image treatment
      • Vision acquisition software
      • • IMAQ (free)
        • IMAQ i/o (free)
        • IMAQdx (paid)

  Now, as for your specific application the Vision Development Module is not included in the Suite of developers at least that specifically added to your package. However, you will be able to acquire and save an image with the base IMAQ VI.

  IMAQ means Acquisition of Image and is a driver package for communications standards of different camera as well as several basic image manipulations. With the free IMAQ driver, you will have access to the VI listed in the knowledge base following.

  The screws are installed with NOR-IMAQ and Acquisition of Vision Software?

  http://digital.NI.com/public.nsf/allkb/1c4ed6177ee566d68625794a007ba160?OpenDocument

  You can download the latest version of IMAQ here:

  http://Joule.NI.com/nidu/CDs/view/p/ID/2758/lang/en

  Alternatively, you can download a trial version of the software for Acquisition of Vision and then allow the functions of IMAQdx paid become invalid at the end of the trial period.

  http://sine.NI.com/NIPs/CDs/view/p/lang/en/NID/12892

  Once you have the IMAQ VI installed you should be able to open the. TIF file and display it using the ReadFile.VI IMAQ and an indicator of the image.

  I hope that clarifies the differences of our Vision, and how you can access to the. TIF file.

  See you soon,.

  Joel

• IMAQ Overlay oval shown do not

  Hi all

  I have a LabVIEW application that I wrote a year ago, and the client wants changed.

  In the original app I capture images from a camera and display them to the user.

  Due to processing time, I save the images in a binary file, then when the data capture is complete, I re-read and make the association model, calculation of return on investment, edge detection, etc.

  During this second phase, once I have defined edges I use "IMAQ Overlay oval VI' to paint the small green ovals on grey scale images to show the edges.

  Everything works well.

  Because of the economy, and post processing, the user cannot see how efficient the model match/edge detection works until after the data collection is over.

  I added a routine preliminary, before quick data entry, to capture the image in grayscale, to pattern matching, detection of contours and layering.

  This is going more slowly than the routine collection of data above, but that is normal in preliminary fashion.

  I copied the code I use in section 2 above (reason, set the return on investment, find edges, draw layer), to be used in the preliminary routine.

  Everything seems to work, but the oval Overlay IMAQ VI attracts not ovals on the image in grayscale.

  I actually called you the same Subvi to clear the overlay, and then draw a number of ovals (passed in an array), use in the second routine 'presentation of data' in the old code.

  This old code, continues to operate correctly, drawing small circles, etc.

  Any ideas on what I should look at to see why recoveries are not displayed?

  Thank you

  Jeff

  Simple mistakes:

  First of all, wire of the image by the acquisition stage, not there.  You want to make sure that he finished the acquisition before starting treatment.

  Second, move the connection out Image from the drawing of the oval.  Currently, you're never updating the display after you draw ovals.  The program cannot read your mind.  The current sequence is acquire image, image display, draw ellipses.  For best results, you can snapshot.

  Overlays are erased when you acquire a new image.  They do not stay when you process the image.

  Bruce

• IMAQ create and SubVIs

  Hello!

  I am video capture with IMAQ.

  I have a hand program and a Subvi, which made the acquisition.

  When I use the Create.vi IMAQ to allocate say 5000 photos in the Subvi runns all fine

  but whenever I call the Subvi there is a delay until all images are ready for the acquisition.

  So I tried to make the distribution of the hand-Programm-VI where is enough time to do this while the user makes other things.

  Then I put a reference or a single entry to the Subvi with table empty I allocated.

  When I run the program now acquiring works but is about 10 x slower than before.

  What's wrong? Why ventilation is in the Subvi to run at normal speed?

  Welcome C.Riedel

  Thanks to all who tried to help, but I found a solution (unsatisfactory).

  I completely Redid the Subvi by copying and pasting the code in parts to a new VI...

  and it works now. Jey!

  So Bruce was good, the concept is correct. Thanks for that!

  The source of probs remains unknown... NaH... but fortunately it works now!

• IMAQ ImageToArray VI I16 ouput stop working

  Someone has experienced problem with the IMAQ ImageToArray VI as the exit I16 stops working suddenly. The U16 works fine however.

  Hello

  Could you elaborate a bit on your problem? Do you already have the IMAQ ImageToArray VI working with I16 output, but now it no longer works? Is there a wire cut from the output? What changes have been made since he was working? This information should help us to hone in on the issue. In the meantime, I found a forum related to a similar question (http://forums.ni.com/t5/LabVIEW/IMAQ-quot-image-to-array-quot-directly-wired-to-quot-array-to/td-p/2...). Have a great day!

  Karine w.

  Technical sales engineer

  National Instruments

  [email protected]

• Flicker of image with USB IMAQ vision

  Hi everyone

  I develop a detector/tracking system of simple movement using a USB WEBCAM, I calculated the difference in frame, between successive framework easily, using a business structure that exploit a while loop to store into two buffers two successive frame.

  IMAQ using subtract two stored image I got the picture of the difference. On this picture, I made a cast of the image using the image cast IMAQ plug-in, and successively, I applied cascading the following modules:

  1 - IMAQ BCGLookup (to improve the brightness and contrast of the image of the difference)

  2 - 2 AutoBThreeshold IMAQ (to get a picture of threesholded)

  3 - IMAQ GrayMorphology (to improve the form int threesholded image object)

  4. and finally IMAQ number of objects 2 (to count and track objects in the scene)

  The result is almost good (isn't a movement tracker real but it is sufficient for my purpose).

  Now my problem is related to the image of twinkling of effect on the area of display image, making it impossible to see the result of the image on the front panel. A highlight on the block diagram allows to obtain a more stable image (even though highlighted after the application of the IMAQ count objects flickers however). The effect of scrapie is absent in a simple vi published to view the source of the webcam.

  Now what should I do to remove this effect? Is a system or a problem related to the sampling problem video webcam (I use a webcam low cost with a resolution of 640 x 480 15 fps)?

  I have already read messages from the other person, in this forum about this problem, but my case is slightly different.

  to overcome the lack of understanding of my explanation, I enclose a diagram view that I realized.

  Thanks in advance for any answer you can give me on this problem.

  
  

• 1074396995 error occurred at Sequence.vi IMAQ

  Hello

  I'm trying to capture a sequence of images using a suitable program of "Sequence and save at AVI.vi. Initially the VI worked fine, but when I tried to run the same VI today I get the error

  1074396995 error occurred at Sequence.vi IMAQ

  Possible reasons:

  NOR-IMAQ: Hardware for the acquisition of the image you requested is already in use.

  When I try to write a simple program to retrieve an image or image acquisition using MAX, I am able to get the image without errors. But when I use the modified program, I get the above error. I made sure that no other program navigate to the camera while I run the VI. I also joined the program.

  What causes the error?

  Thank you best regards &,.

  Sandeep

  Hello

  I foud out what was causing the problem, a stupid mistake from my end, but a totally misleading error of LabVIEW.

  I had created an IMAQ session but do not connect the session to the vi IMAQ sequence for the capture of the image did not. If anyone from National Instruments is looking at this message, please make sure that it is noted and fixed so that in a situation like this, the correct error is displayed.

  The corrected VI is attached.

  Thank you best regards &,.

  Sandeep

• Is it possible to display multiple images on screen Imaq?

  Hi, I need a little help here. I captured 5 images of a webcam for their treatment. At the end of the treatment, that I need to show to the user, executives 5 but I don't want to use 5 imaq display. I've tried the image browser, and even if it works, it looks very ugly. Is there another, more elegant method, that I can use?

  Francesco.

  Hi Francois,.

  I made a small example VI on how you assemble images together like that.

  The VI allows the user to select several image files, load them in turn, creates an image large enough to hold all the, then copy the smaller images in the big picture, the appropriate X value compensation.

  I hope this should help!