application 2D median filter for images

Similar Questions

• Median filter isn't removing the spikes at the bottom

  Hi all

  I use a median filter to spikes of deletes for the acquisition of data in real time of thickness of an ultrasonic sensor. This filter works great to remove the upper tips, unfortunately the bottom spikes remains unchanged. I tried changing different grade in the median filter with no improvement.

  Attached images are code LabView and graphs showing data before and after filtering. How can I remove these spikes at bottom also?

  Thanks in advance

  Apple

  I think that your problem is your acquisition code, not the filter. The data set, you have posted has 969 items with values of 2.681 or 2.68. The other 54 elements have values as 2.6, 681, 1, 2, 8 and 68. An element has the value 5, and there the value 9.

  What this suggests to me, it's that your VISA reading is not correctly synchronized with the data transmission device. Either you get partial messages or an occasional character that does not match your regular expression.  Look at the default value stored in the reading string in your VI. Unplug the display of ' \' character mode. It contains '\D5U=\F32.681\r\n2.681\r\n2.681\r\n' it looks like there two characters special \D5 and \F3 and then three values separated by carriage return, line feed. With this kind of protocol you should probably use the jump as a default line end character. Then search for the string \D2...\F2 which can be a header or channel ID. The rest is digital data.

  Check with the creator of the device that sends data to determine the complete communication protocol.

  Lynn

• The Application of the filter node of event using the mouse down?

  Hello

  I have a question regarding the application of the filter nodes of the Mods and PlatMods event.

  With respect to the event "Button" filter node, I can change the response when I click on the botton, either for a right click or left click.

  The filter node throwing event is more common to use, it can provide the opportunity to reject the action of the set button.

  But now I can't realize how to use the node of the Mods and PlatMods event filter.

  I change the value of the double click event filter node, then what?

  Could someone give an idea or a suggestion? Example or scenario is preferred, thank you very much.

  

  There are several reasons why you want to change the action with the filter node. For example if you also have a key value changed event, you could turn a right-click (that normally would be open the contextual menu) with a left click then immediately triggered the value change event.

  Similarly, you might have a change of value and double click even for a listbox control. Then, you could add a fiterling event mouse that would make a single click (normally not trigering a change in value) in a double-tap for some values, but leave in one click for other values.

• How to change the gesture example application to load a different image after initial load

  The sample application 'Gesture' is a good start for me, since I want to load and display a picture full screen.

  However, my application needs to change the image that is displayed thereafter.

  I managed to load the new JPEG image via:

  ...

  io_stream_t * memory_stream = io_open (IO_MEM, IO_READ, num_jpeg_bytes, jpeg_bytes);

  RC = img_load (ilib, memory_stream, & legends, &img);)

  ...

  ... but the new image is not displayed on the screen.  I guess that's because the decode_setup function that is used to load the image when the IPL does not have to then change the image, but I don't know how it should be changed.

  I read:

  https://bdsc.webapps.BlackBerry.com/native/reference/com.QNX.doc.libimg.lib_ref/com.QNX.doc.libimg.l...

  ... but it does not tell me something I already know.

  I guess the question is this: If you load an image into a structure img_t, how can I take this img_t and update the screen to display the image full screen?

  Thank you!

  Daniel

  Hi Daniel,.

  The legend of decode_setup provided should load successfully all significant images in memory buffer rendering. However that alone does not display the image on the screen. You must call screen_post_window() after your call to img_load to make your changes in the visible rendering buffer.

  See:

  https://bdsc.webapps.BlackBerry.com/native/reference/com.QNX.doc.screen.lib_ref/topic/rscreen_post_w...

  For more information, or the main() function of the sample of actions for an example.

  Kind regards

  Jeff

• How to use the median filter?

  I need a median filter that ignores the pixels with color difference above a certain threshold. So, if the pixels are relatively narrow in the value of the color, apply median as usual. If not, ignore.

  Hi bluefalcon,.

  Please check the following link and let me know if you be useful: How to use the median filter in Photoshop CS6 - for Dummies

  Concerning

  Tanuj

• Could not mount the file. It has not been possible to find a filter for the requested command.

  Get the error message:

  Could not mount the file. It has not been possible to find a filter for the requested command.

  Why is - this happens when I open documents using Mac advertising agency and I'm on PC?

  Hi Mikael,

  files have been archived in archive zip-file when transferred via the ftp protocol? I guess, not.

  If the files were already placed in a document, InDesign on the agency side the following workflow might be the solution:

  Office on Mac OSX:

  1 package the InDesign document, as well as placed images and fonts of the necessary document with InDesign packing device.

  2. the folder packed in a zip zip file.

  3. download the zip file to an ftp server

  You on Windows:

  1. download the zipfile to your own workload.

  2 unzip the zip on your workload. Do not delete the zip file.

  3. rename the folder of the package to fit your scheme of naming of jobs (option)

  4 rename the InDesign document to adapt to your schema naming of jobs (option)

  5. open the InDesign file in the packed file.

  Do not move or save somewhere else.

  Alternative:

  Work with Dropbox to share documents on a shared volume of Dropbox, if documents must move forward and backward between you and the Agency.

  Uwe

• How to change an image that I paid for images from adobe?

  How to change an image that I paid for images from adobe?

  You can use Photoshop or any program for .jpg photos and Illustrations of image editing. For the vector .ai, you will need Adobe Illustrator or another application that takes supported Illustrator files.

• Apply a median filter in video?

  Hello.

  I just wanted to start to say I'm a complete Newbie using Photoshop for purposes of video editing, so patient with me to work, I work with Photoshop and we recently received a promotional video clip about a new Middle East project we collaborate, we would like to publish it on our intranet home page. However, they have chosen print information in the video, which is in Asia and type of a gene for eyes.

  I learned that I can use the CS6 video editing option and place a median filter on the denunciation without removing completely the bottom. I tried to use the Rectangle tool of selection (with the video clip selected in the layers) to join the information and then apply the median filter. It works fine, but as soon as I start the video, he is gone again... So, how can I make sure that the effect of median filter is applied throughout the whole sequence?

  I'm sorry if this thread is in the wrong forum, I was not really sure... Thank you very much for your help!

  Best regards

  Jesper Pedersen

  Hello, I beg to differ. Convert the video layer to a smart object, select an area, apply your blur. IT can even be animated

  See:

  and:

• Filter the images of their calibration of the camera?

  I started to create my own profile of calibration of camera.

  Now, I want to apply to all images that have the profile set to Adobe Standard but not to those where I already changed the profile of the camera.

  For this I need to filter all images that have the Standard Adobe along with their profile.

  Is there a way to do this in Lightroom?

  Best regards, Ruedi

  The filter any plugin allows you to search by camera profile.

• compression algorithm works for images in PDFs...?

  Someone help me about the compression of images in PDFs... I have little knowledge of the DCTdecode filter. We can save the compressed image in .jpeg, .bmp extension segment... I want to know the FLATEDECODE filter how it works for image compression. I read the reference manual pdf 1.7 , but I can't understand that properly... Please help me... thanks in advance...

  It's the same thing

• I put the filter for my file flat source?

  Hi all
  Please help me with best practices of ODI.
  My source is the flat file and I want to put the filter.
  
  I put the filter for my file flat source? If so, please help me with best practices from the application of the filter.
  
  Concerning
  Suresh

  Hello

  If you try to create--> Datastore model---> filter---> Insert condition
  then it will not work for files technology. You will get "Invalid Format Description"

  But you can specify a filter in the interface.
  Just drag the columns in your flat file of data store into the canvas and then specify the filter condition.

  Thank you
  Fati

• Photo, what are the criteria for images selected from the collections of photos?

  With Photo on my Mac when I'm in the view "of the years', I see all my photos. When I switch to 'Moments' I see all the photos, especially older. When I go to "collections", then I self pictures? What are the criteria for images selected in 'collections' of photos? Thank you

  You should see all the photos in the Moments, the years, Collections, unless you have the "Summarize" option enabled in Photos > Preferences > General.  Then some pictures will be omitted, but the rules are not documented.

• median filter

  Hi, I am a student on filtering

  My basic test comes from the txt file with table 1 d, with the help of tool median filter, where the signal is filtered median

  But it does not work which means it does not indicate the field. I don't know why even there no error that occurred.

  Please let me know the reason.

  

  Try something like that. Filter seems to work pretty well:

  

  (Note that read the spreadsheet file has changed in LabVIEW 2015, so the red X on the icon. Just ignore that. Be sure to select "convert" so that you get the first column instead of the first row)

• Filter for table data, the range of data obtained and defined 2D

  I produce data of an ultrasonic sensor at 1 K Hz, and there is a lot of data (data points range of 0 to 10). However, in some cases when I know that the data should be about 7 (for example) I get outliers (about 9 and 10). Is it possible to define a filter for data in the defined range.

  I averaged the data to get an average value, and outliers are distorting. In the worst case, my outliers are 30 to 40% of the data generated. I created a filter to sort the data and, taken from the lowest value. I stop the loop when data reaches a value greater then 9. But this seems to take a long time (because the loop checks for each data point and there are 1000s of them).

  Is there a better way to filter data and define a predefined table range to collect?

  I enclose my filter.vi... and a set of samples of my previous data. The ranges of data of 10-8 and would like to have the range 7.5 to 8.5 to consider. The sensor records tension here and the problem can be solved by installing a different type of sensor, but if a filter in LabView can due it, the sensor that we use now is absolute.

  I am in kind of emergency, my design in unfinished because of this problem, if someone can find some time to share some suggestions, I will be grateful.

  Thanks in advance.

  See attachment.  I have incorporated the data you've posted in the vi.  It doesn't seem like any data were less than 8.7 or so, so I modified the scope so it would be a few points on average.  Some games were completely out of reach while the average came back like NaN (not a number) due to a division by zero.

• Cannot use median filter inside the While loop

  Hello

  I try to use the filter median insade loop some time. This seems to be a problem. I have attached the VI. Help, please.

  This entry is a number of sample as 1,1.1,1.05. This output is zero.

  Thank you

  Vincent

  Since you get only one value per iteration, you can use the point-by-point version of the median filter.