Detect the type of the image

Similar Questions

• How can you define the image that FB takes when your share your Web page?

  He always takes a piece of something or some text... but nothing that looks really good!

  Thnx

  Hello

  Facebook auto detects the image while sharing the web page. It uses the url of the page, and then sends the thumbnail image.

  However, you can add your custom code to indicate which image to select for facebook, but it would be a customization on the page of your site.

  Some useful links:

  http://rickmanelius.com/article/tell-Facebook-which-image-share

  Ostad http://support.dlvr.it/hc/en-US/Articles/200401854-How-do-I-Control-which-image-photo-is-p-pour-Facebook-

  https://developers.Facebook.com/docs/Opengraph/HOWTOs/maximizing-distribution-media-Conten t.

  https://developers.Facebook.com/docs/plugins/checklist/

  Thank you

  Sanjit

• How to detect solar cells of the image

  Hi all

  Sorry, I posted this question on the other forum but received no response. Please help me in this task. Actually, trying to detect the solar cell off image and I thought of making a histogram of the image could be a first step, but I'm not the case now. Could you please provide me with an example of similar task which can be useful. Thank you

  Concerning

  Your original thread is not dead.  I propose to close this thread and stuck with the original.

  Hell!  Meanwhile the other thread made reference to this.  It seems that you now have to maintain two threads for a question...

• How to detect the data type is?

  Hello!

  I built a function of VI. But I want to make it safe - function could detect what type of data is connected to the inputs and only allow certain types of data cabling. How can I do this?

  Thank you

  You could look in polymorphic VI.  They will allow you to connect different types of data.  However, it is not really an option to "do not allow" it.

  If someone creates their own s VI in LabVIEW, then they should pay attention to details like the stress points.  Other than provide good documentation describing the function, inputs and outputs of a Subvi, it's not really necessary for the creator of the Subvi to prevent another programmer to use this Subvi wrongly.

• Object to detect and record the image of the object

  Hello

  I'm trying to detect the object and save the image. However, the programming can sometimes do as request and sometimes impossible. Someone know how to ensure that this programming is stable? My programming is attached. It is using pixels to detect the object when he gets to the Center.

  
  

• How to find the image of an image file type

  This has been posted on the LabView forum by mistake yesterday, please excuse the double post.

  I am trying to open a JPEG image.  If I don't know the type of image (8U, 16I, GrayscaleSingle,... etc)... is it possible to find this information?

  If you open the file using IMAQ ReadFile... you will need to provide an Image create to allocate space... the entry specifies a type to read... but if the type of the stored data is not the type specified in the read file that is read the file as type specified, or the file does not all input values... (and no error is produced).

  Examples:

  Store a JPEG image single Percision floating point.

  Use a Creat file to specify that the file is read with the following types... with the following results

  Specified type Type reading resulting image

  U8 U8 8 bit image appears

  16I                               16I

  Hummer1,

  There are two methods to achieve this:

  (1) IMAQ GetFileInfo, who has quite a few outings involving details of the image.

  (2) read the JPEG file, which you can ungroup the image data to obtain the depth of the image, or other attributes of output.

  I would recommend the IMAQ function, because it is more detailed.

  Hope this helps

• How to detect multiple points of laser on the image

  Consider I have a picture with several spots dark bright laser. I want to find the center of gravity of each laser spot and return the coordinates of each spot.

  Currently, I managed to detect an single spot to grab an image, adjustment of the threshold (threshold IMAQ) and find the center of gravity (centroid IMAQ).

  However, when I have several points of light, this method gives me the center of gravity of all tasks combined. Should what technique I use to detect the center of gravity of each individual laser?

  Thanks in advance.

  Try to use blob analysis.  Make a fast threshold, which should give you a place for each laser.  Blob analysis allows to get the center of each BLOB.  Use the function of Center of gravity to locate the exact gravity Center, if the center of the BLOB is not good enough.

  You should be able to save time by recording the previous values of the center of gravity.  Lasers are moving very quickly, their new locations should be near their old location.

  If it is still too slow, understand what part takes the most time.  If it's the center of gravity, I am able to suggest other ideas.

  Bruce

• Detect the shift in two consecutive low contrast images

  Hello

  To determine how fast a sample of ice sliding USB camera (rate of about of 30 mm/min) I head to align an image every 5 ~ 10 sec and then compare the two images. I'm fighting to get a robust method to determine the displacement. The main displacement will be that in a sense however ice may move a few pixel widths in the other direction as it slides in front of the camera.
  Currently I am comparing the two images taking a large (400 x 800 pixels) KING of the second picture, then taking the pixel values average of all the columns in the two images that then allows me to subtract 1 d arrays that result and find the position where the difference is minimal.
  This works very well for the "perfect" images but no longer reliable with less then perfect images.
  Because the images are samples of ice with very little "features" (not counting the odd are bubbles) and low contrast, I feel that I have to rely on profiles in levels of medium gray rather then a 'function' follow-up or detect an edge etc..

  The berries average grayscale of the King plotted in the graph to see the clear peaks and valleys, so another method would be to match the data but I don't know how to do it again.

  Any suggestions on how I can better determine the displacement between the images? The method should relatively quickly because it must be in 'real time', i.e. within seconds.

  Thanks as always for all of your help.

  Jack

  Hi again

  Advice of Follwing Mike subtract images I've played around with this feature and have now the principle works well.
  In case someone else I would try something similar please see attached the VI and two images of the example that I used to experience.

  Well yet, which doesn't seem to work, it's the method of detection of peak/Valley. Any width I put may not find the Valley... suggestions welcome!

  Have a great day.

  Jack

• How to determine the image type in IMAQdx

  You can use the property IMAQ node to determine the image type when creating images.  However, when I try with IMAQdx I get 0 bits per pixel and I do not see a type as for IMAQ image.  I am creating 8-bit images when my camera is color.  How can I determine the image type of the camera file?

  

  Hi rammer,.

  IMAQdx exposes an attribute called "TypeOfImageInUse" that will give you the image type expected for the current settings of the camera. However, none of the functions that return an image IMAQdx will automatically convert the image to the format automatically, so you don't normally have to worry about this.

  I do not believe that the attribute is now directly exposed as his own property node, but you can use the CameraAttributes-> ActiveAttribute/ValueU32 those for questioning as any other attribute of dynamic camera.

  Eric

• Detect the resolution of image

  Is there a way to tell the resolution (dpi) of images online (e.g. on Wikipedia)?  "See Image Info" only gives the number of pixels and the size of the file.

  You are at the first stage for the image resolution & xp, go to run, type: DXDIAG

  Run audio and video tests, Direct X... In addition, xp has a download, called resolution of the image,

  utility, find it on this link.

  http://www.Microsoft.com/en-us/search/result.aspx?q=Windows%20xp%20image%20resolution%20utility

• Detect the type of keyboard - QWERTY full compact versus (style Pearl)

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  Is it possible to detect which type of keyboard is the device?

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  -MO

  Keypad.getHardwareLayout ()?

• What happened to the image field when you create a field of type of image for the Web application?

  What happened to the image field when you create a field of type of image for the Web application?

  The answer is that the point of the IMAGE has been changed to the MEDIA.

  Sorry, Ian, what research for this discussion, I got no results. All good and thanks for the carillon. Hope everything goes well.

  Mouma

• How to display the image of wamp if data type I use is blob?

  Please help me with the problem of wamp if image display is of blob data type. Thank you

  Do not store images in the database. Store the names of image files in the database and place the images in a folder.

• In illustrator my rotation tool is the bending of the image or type. How to stop this?

  In illustrator my rotation tool is the bending of the image or type. How to stop this?

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• How to clear the field of the image stored while the data type is LONG RAW

  Assalam O alaikoum
  
  I have a table of LONG RAW data type field. I made a form on that table. and the images stored in this area to help after the program.
  
  DECLARE
  filename VARCHAR2 (256);
  BEGIN
  filename: = GET_FILE_NAME;--(File_Filter = > ' JPEG (*.)) JPG; *. JPG; *. JPE; *. (JFIF)');
  READ_IMAGE_FILE (filename, 'JPEG', 'work_order.article_image');
  END;
  
  And he stored images when I commit / saves the form.
  
  Problem:
  
  I want to remove the image from this specific record field. I don't want to delete the entire record, I don't want to replace the image. I want to only empty this field.
  
  HOW CAN I DO?

  +"... I don't want to replace the image. I want to only empty this field... « +

  Have you tried:

  Go_Item('image_item');
  Clear_Item;
  

  François

• Crash with the image with the evil tiff tag type

  I have a small application that uses the XMP sdk to read metadata. We had a problem with break which proved because of a tiff tag bad value entry type IFD that was out of the acceptable range of 1-12 (actually a jpg image). This led to intermittent crashing to the TIFF_MemoryReader::GetTag because kTIFF_TypeSizes method [thisTag-> type] would find a random value of memory outside the enum. If it was zero, a division by zero would occur when the info-> count is calculated. If this does not work, then an assertion would catch it (in debug mode) in the ImportTIFF_CheckStandardMapping method in ReconcileTIFF.cpp.

  I just added a label control in TIFF_MemoryReader::GetTag that seems to work OK. I was wondering if this is the best solution, or if a change should be made in the sdk. I don't know that this type of bad image is not common. I can make the image available if it would help.

  Thank you.

  Hi Broga,

  Thanks for reporting this.

  Our next SDK release will have a range check added to TIFF_MemoryReader::GetTag to make it more robust for these bad files.

  Kind regards

  Samy

  Adobe Systems