How can I determine the type of image to be used before loading an image?

I'm developing an application using VB 2005 which measures two 8-bit or 16-bit image files. When I saw the picture, I find that I have to set the type of image the image buffer before playback of the image in it. For example, if I read a 16-bit image in a buffer of 8 bits, the image is truncated. I guess I could read the image in a 16-bit buffer and retype it if the pixel values are less than 255.

Is there a better way to do it? Can I determine the number of bits of an image before loading in a buffer?

Thank you!

Hi Steverino,

Olivia is incorrect... VDM has a function called GetFileInfo which does just what you want. It only reads the header of the image but does not load the entire image in memory. It will give you various properties such as the bit depth.

I think that on the new .NET support, there can exist here: NationalInstruments.Vision.Analysis.Algorithms.GetFileInformation.

Thanks to the ICB and our legacy of .NET support, it's probably a similar name.

Eric

Tags: NI Hardware

Similar Questions

  • How can I change the type of image file to download on a site like walmart or walgreens for printing?

    How can I change the type of image file to download on a site like walmart or walgreens for printing?

    In general, they will accept the image in the format, that it was taken (if it was taken by the majority of cameras or cell phones).  But if so, you have a few options.

    The most simple and integrated solution is Microsoft Paint.  Yes it is from the 1980s, but it still works and changes of a good job for a time.  Just to right click on the photo file, choose open with and choose paint.  Then go to file > save as and save this return as the file type you want it to be (like PNG or BMP or JPG, quality declining in the JPG option).

    If you need more options like changing the quality he uses during conversion, another free option (of the very very many) is Paint.NET, an open source free image editing program. http://www.dotPDN.com/downloads/PDN.html

    There are also programs that can do it in bulk, so you can highlight 300 photos and do convert them all at once.  You can do this for free or with tools like Photoshop.

  • [CS2] [VB] How can I determine the type of object to a PageItem?

    I use InDesign CS2 and VBScript

    Loop to the bottom of the PageItems in a Page, I need determine the Type of object (TextFrame, group, GraphicLine... each process) and PageItem accordingly.

    Is there a method/function VBS wiil returns the Type of an object as a string or a value. Or what I need to check the existence/non-existence of a particular property associated with a particular object for this type?

    Alternatively, is there a JavaScript function that will do what I can call VBScript?

    For the record: TypeName is what you need.

    For example, when the cursor is planted in the text return TypeName (Ind.Selection (1)) 'PointInsertion.' When a text block is selected, it returns "TextFrame.

  • How can I determine the type ESXi 4.1 installation source image?

    Hello

    I have a host ESXi 4.1 running on HP hardware. Y at - it no way of knowing if it was installed using custom HP image or generic VMware image?

    Thank you

    Michael.

    The other way would seek to "show support information" in the screen DCUI ESXi. I see this page is changed when versions of server providers the VMware ESXi on measurement of images.

    Thank you

    Krishnprasad

  • How can I determine the number of contacts that I have

    How can I determine the number of contacts that I currently have on my iphone

    I don't know of a way on the iPhone, but if you have a Mac, you can go to the Contacts (platform) app and scroll to the bottom where you will find the total.

    Same for iCloud.com on your browser, go to the app, scroll down.

  • How can I determine the size of the files and photo albums?

    How can I determine the size of the files and photo albums?

    It is not really in any way, nor is it necessary-what you trying to accomplish?

    LN

  • How can I determine the version of Toshiba Assist?

    How can I determine the version of attribution that is installed on my Satellite X 200 with Windows Vista Premium SP 1AA. Operating system?

    Go to the control panel and start the option programs and features.
    After full load, you will find listed Toshiba Assist it.
    Click on it and on the bottom, you will find information about the version of publisher, size and product.

  • How can I get the type of coverage to work

    type of coverage

    How can I get the type of coverage to work

    Hi Ted,

    Once you take the type of coverage, it's ready to go!

    You are in a place to type in information?

    Once it is aligned, it works like a regular keyboard.

    B Eddie

  • How can I get the type of device in ESXi5?

    In ESX or ESXi4, use dmicode | grep 'product name'-i to get the type of device. But this command is not found in ESXi5. So, how can I get the type of device in ESXi5? Thank you.

    The dmicode | grep 'product name'-i train ESX4.1 as follows:

    [root@host22 ~]# dmidecode | grep -i "product name"
     Product Name: CN21UPSA  
     Product Name: CN21UPSA

    Try the simple way: "esxcli hardware platform get."

    / Rubeck

  • How can I change the privacy of images and how I'm going to share a few photos with others?

    How can I change the privacy of images and how I'm going to share a few photos with others?  It has been a lot easir in photoshop...

    You share photos per album. When you share the album, you can decide if the recipient can download them or not.

    Guinot

    Share

    FAQ: How do I share my pictures to Revel? http : / / forums.adobe. com / thread/1295026

  • How can I determine what profile Firefox 5 is currently using?

    How can I determine what profile Firefox 5 is currently using?

    Help > troubleshooting information > profile directory: opens showing the file

    Copy and paste this code in the Code field in the ' tools > error Console " and click on evaluate to see the location of the profile folder.

    alert(Components.classes["@mozilla.org/file/directory_service;1"].getService(Components.interfaces.nsIProperties).get("ProfD", Components.interfaces.nsIFile).path);
    
  • How can I retrieve the voice of a track to use as an acapella?

    Hi, just like the title says I would like to know how to extract voice from a song so I can then use it as an acapella with Audition CS5?

    Also while I'm here, using audition CS5, how can I determine the tempo of any audio file, I opened, and also how can I so to match the bpm of another sound file to match the bpm of the track I'm trying?

    Thanks for your time

    Dan

    Your success with the voice of a song of isolation depends almost entirely on how the song was mixed and will vary widely.  There is no perfect solution, well repeatedly artifacts that remain can be reduced in a mixture.  Generally, you'll have the best success with the music where the vocals is panned to a specific location in the mix - usually dead center, but the tool can be used to isolate any position in the stereo field - without too much instrumentation to expand in this area.  Bass sounds are usually mixed Center as well, you may need some additional EQ or lower frequencies spectral removal after completing the stage of extraction.

    The tool you'll use in Audition is the effect of Center Channel Extractor , located under the Effects > stereo imagery menu.  Start with the preset Acapella , then change the setting from custom for additional control.  Select the region you want to isolate (it is often preferable to isolate the parts separately as, for example, the verses can be mixed very differently from a choir) and start playback with the open effect.  Use the power to temporarily circumvent the effect, so you can note the differences.

    Adjust the settings of phase shift and Pan to maximize singing with minimal instrumentation.  Use the bandwidth settings to help reduce some of the low-end and high-end mixture that is not associated with the voice.  The two vertical controls on the right allow you to adjust the levels of what is being isolated from all the rest. (Toggle to make a Karaoke mix.)  On the tab of the Discrimination , the most important parameters will be Crossover bleed and Discrimination of Phase controls.  You can set the parameters of the FFT on the Advanced tab, although I wouldn't recommend it until you are comfortable with the tool.  Must necessarily know exactly what that never parameter, but listen carefully while you make adjustments and you will begin to understand how each setting affects the result.

  • How can I add the speaker notes to a slide using applescript?

    How can I add the speaker notes to a slide using applescript? I am able to create slides, add a title and bullet points, but when I try to add the speaker notes, it does not work.

    say thisSlide

    -set the title

    set the text of the object to the default title at "TITLE" element

    -create a bulleted list

    the text of the object of the item to the default body ¬

    "Bullet Point 1" & return & "Bullet Point 2" & return & "Bullet Point 3"»»

    -put the presenter notes

    ¬ the text value of the object of the presenter notes

    '' Here is my presenter notes.

    How can I add the speaker notes to a slide using applescript?

    Maybe like this:

    say thisSlide

    -put the presenter notes

    Set presenter notes to "here is my presenter notes.

    end say

  • How can I get the amount of free disk space using the space using windows 7 Please share example using GetDiskSpace

    How can I get the amount of disk space by using windows 7 Please share example using GetDiskSpace I already studied http://digital.ni.com/public.nsf/allkb/9958B8E473C4EF1786256BBC0053B64F

    Reading your question a little more in detail, I doubt if you are using the Win32 GetDiskFreeSpace API function (including my previous post is the solution) of the function GetDiskSpace from the Toolbox of the programmer.

    With respect to the other, it works even with capacity greater than 2 GB disks, but you must use the appropriate formatting code to display the returned value. I updated my example to display the total of free space in the debug output window and added a comparison with the value of 3 GB using UInt64TypeCompareUInt box to tools programming interface.

  • How can I prevent the access denied message when you use the shutdown command?

    I use shutdown /m \\computername/s

    I have "Access denied (5)" as an answer.
    I am admin on all my computers. Same username and password on each of them.
    How can I get this shutdown command to work remotely, so I can't access every computer command prompt via Remote Desktop?
    How can I prevent the access denied message when you use the shutdown command?

    Hello

    I suggest you to report this issue in TechNet Forums for Windows 7 networks: http://social.technet.microsoft.com/Forums/en-US/w7itpronetworking/threads

    Thank you.

Maybe you are looking for

  • focus camera iPhone problem SE

    Since the update to the latest version of the software, the camera on my iPhone WILL focus not about 40% of photos. Tapping no screen no help... Ideas please?

  • Firefox doesn't show popup for authentication

    I use firefox for internet access through my University proxy. I type my password and my user account.Recently, firefox does not show the popup for authentication, where I type my user account and my password, so I can't access my network of the Univ

  • How do I change to "newtab.url"?

    When I click to a new tab in the browser, it loads "search.conduit.com. It is in the variable 'newtab.url '. I would like to get rid of search.conduit. I have read for existing material aid but stilldo not understand how to change newtab.url.

  • How can I get rid of adobe flash ads

    I have a series of ads by Web Shoppy appearing on my screen with the web sites of retail sales.  The ads all say how to uninstall, but this information is wrong. The site indicates that cookies should be reactivated. any ideas?

  • Is it still possible to get the 64-bit Windows Vista support?

    Hello! Well, I have a copy to authentic detail, under license of Windows Vista Edition Home Premium. He put 32 bit media. But at the time when Vista comes out, I could order the 64-bit Vista Home Premium support which I use today with the same licens