How do I grab an image (Jpeg) of a Network camera?
There was a question 3 years ago, which remained unanswered: How do I
grab an image(JPEG) from the Web(http://) using the datasocket in
LabView?(http://forums.ni.com/ni/board/message?board.id=200&message.id=847)
I have the same problem. I would like to capture the image of an AXIS
2006 wireless Network Cam with Labview, for further processing. A
sample image with such a cam is available at:
http://stareat.it.helsinki.fi/jpg/image.jpg
If you just want a URL, you can use this example, which someone posted a while back.
Try to take over the world!
Attachments:
Image from web.llb 78 KB
Similar Messages
-
Sorry I'm new to Final Cut Express. How do you make an image (jpeg file for example) move across the screen slowly as I've seen in many films.
Neil from bristol wrote:
… How do you make an image … move across the screen …
by setting KEYFRAMES
(read, what FC/e's built-in Help-feature tells about it)
resize and set pic to start position
set keyframe
move playhead in timeline to desired length
set pic to end position
set keyframe … -
How do i place an image, jpeg png or otherwise in my Signature in Mail?
How do I place an image, jpeg, png, or otherwise in my Signatures inside of the Mail Application?
Go to mail>prefeferences>signatures, select new with plus key signature left column,highlight that signature. Drag image into right cloumn
-
How do you fit still images (jpegs) to match clips in Final Cut Pro 7?
The images are too small and the clip can be seen on the borders. I tried making them bigger b/f dragging but that distorted the image. I shot the video in 16:9 and shot the pictures with my IPhone not using HD.
Now, are you asking about a procedure in FCP7? Cuz this is the FCPX forum. But, if you are asking how your conform images to fit "LIKE" FCP7, but in FCPX... Here's how. In addition to the transform / crop tools, go to your inspector. In the "Spatial Conform" section there is a drop down for "fit."
-
How do I grab an image of an ActiveX container,urgent!
Help!
I am using an activeX container with a webcam viewing activeX component dropped in it. I want to grab the currently displayed image but when I use the "get image" or "get panel" invoke nodes the returned picture leaves the ActiveX container blank with no picture in. I should point out that the image only changes every 30ish seconds so it is probably not a synchronisation problem.
I desperately need help!!
PeteThe responses to the following two questions might provide some insight:
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=135&HOID=50650000000800000000260000&UCATEGORY_0=_49_%24_6_&UCATEGORY_S=0
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=135&HOID=5065000000080000008E220000&UCATEGORY_0=_49_%24_6_&UCATEGORY_S=0
Chris_Mitchell
Product Development Engineer
Certified LabVIEW Architect -
How do you grab an image on the web and save as a jpg when it only has a link?
Recently Yahoo Groups has gone to identifying all photos with a link. I used to be able to drag the photo to my desktop as a jpg and putin IPhoto. Now, it only lets me drag the link to the photo on the page. Is there a way to capture the image as a jpg? Thanks in advance for any help.
I right click and choose save image
-
How can I map an image (JPEG) from the SQL database image string
I saved the image into SQL database, see attachment (SaveImage2SQLDB.rar), while I have some trouble to retrieve the image. I also attached the vi which I used to convert the string to image. The string already has a value I obtained from the database. Can anyone tell me the reason why it didn't work.
Thanks in advance.
Jane
LabVIEW 2012, VDM 2012
Attachments:
convertstringtoimage.vi 78 KB
SaveImage2SQLDB.zip 27 KBHi Jane,
What exactly isn't happening correctly? The conversion or the retrieval?
This discussion forum may be of some use: http://forums.ni.com/t5/LabVIEW/image-from-compressed-string/m-p/2207894
Matt S.
Industrial Communications Product Support Engineer
National Instruments -
How can I display an image from a shared-network folder?
Hi
Does anyone know how I can display images from within APEX that are found outside the database? What configuration have I missed?
Within Windows-Internet-Explore I can access the following image using the below URLs, BUT I cannot access it from within APEX?
What do I need to do so APEX can display theses images from our internal shared network folder?
both these URLs work within Firefox (but on APEX):
\\Saremote\UPDOWNFILES_DIR\polk_insight.gif
file://///Saremote/UPDOWNFILES_DIR/polk_insight.GIF
So within APEX I have created a "display as Text' Item that works with this "amazon image" syntax:
{lessthan} IMG SRC= {doublequot} http://g-images.amazon.com/images/G/01/associates/navbar2000/logo-no-border(1).gif {doublequot} {greaterthan}
BUT sadly not with my image:
{lessthan} IMG SRC= {doublequot} file://///Saremote/UPDOWNFILES_DIR/polk_insight.GIF {doublequot} {greaterthan}
Any ideas would be appreciated.
Thanks
Steve
Edited by: [email protected] on Sep 12, 2008 8:30 AM
Edited by: [email protected] on Sep 12, 2008 8:31 AM
Edited by: [email protected] on Sep 12, 2008 8:32 AM
Edited by: [email protected] on Sep 12, 2008 8:33 AMIf you have a local html file, or open an image locally from the menu, then yes, it works, but with web pages that are served from a remote location (web server), security kicks in and prevents the web page from accessing local files (and files on a networked drive).
you will either have to put the image on the web server and access it through http, or you can load it into the database/workspace images and access it that way. -
How do I substract an image at the time t with an image at t-1 to detect move in a grab acquisition
After the VI acquire in a grab acquisition, how do I substract an image at the time t with an image at t-1 to detect the movement in the scene?
Hello,
One way of doing that is to do a ring acquisition with two buffers. At anytime one of your buffers will be the most current frame and the other will be one before the most current. Having both buffers available at anytime in your code you can call IMAQ Subtract.
Hope this helps!
Yusuf C.
Applications Engineering
National Instruments -
How to insert a pdf or jpeg image into a blob column of a table
How to insert a pdf or jpeg image into a blob column of a table
Hi,
Try This
Loading an image into a BLOB column and displaying it via OAS
The steps are as follows:
Step 1.
Create a table to store the blobs:
create table blobs
( id varchar2(255),
blob_col blob
Step 2.
Create a logical directory in the database to the physical file system:
create or replace directory MY_FILES as 'c:\images';
Step 3.
Create a procedure to load the blobs from the file system using the logical
directory. The gif "aria.gif" must exist in c:\images.
create or replace procedure insert_img as
f_lob bfile;
b_lob blob;
begin
insert into blobs values ( 'MyGif', empty_blob() )
return blob_col into b_lob;
f_lob := bfilename( 'MY_FILES', 'aria.gif' );
dbms_lob.fileopen(f_lob, dbms_lob.file_readonly);
dbms_lob.loadfromfile( b_lob, f_lob, dbms_lob.getlength(f_lob) );
dbms_lob.fileclose(f_lob);
commit;
end;
Step 4.
Create a procedure that is called via Oracle Application Server to display the
image.
create or replace procedure get_img as
vblob blob;
buffer raw(32000);
buffer_size integer := 32000;
offset integer := 1;
length number;
begin
owa_util.mime_header('image/gif');
select blob_col into vblob from blobs where id = 'MyGif';
length := dbms_lob.getlength(vblob);
while offset < length loop
dbms_lob.read(vblob, buffer_size, offset, buffer);
htp.prn(utl_raw.cast_to_varchar2(buffer));
offset := offset + buffer_size;
end loop;
exception
when others then
htp.p(sqlerrm);
end;
Step 5.
Use the PL/SQL cartridge to call the get_img procedure
OR
Create that procedure as a function and invoke it within your PL/SQL code to
place the images appropriately on your HTML page via the PL/SQL toolkit.
from a html form
1. Create an HTML form where the image field will be <input type="file">. You also
need the file MIME type .
2. Create a procedure receiving the form parameters. The file field will be a Varchar2
parameter, because you receive the image path not the image itself.
3. Insert the image file into table using "Create directory NAME as IMAGE_PATH" and
then use "Insert into TABLE (consecutive, BLOB_OBJECT, MIME_OBJECT) values (sequence.nextval,
EMPTY_BLOB(), 'GIF' or 'JPEG') returning BLOB_OBJECT, consecutive into variable_blob,
variable_consecutive.
4. Load the file into table using:
dbms_lob.loadfromfile(variable_blob, variable_file_name, dbms_lob.getlength(variable_file_name));
dbms_lob.fileclose(variable_file_name);
commit.
Regards,
Simma........ -
How can I load a CMYK jpeg image
How can I load a CMYK jpeg image (originally saved from Photoshop) and then
turn it into an rgb BufferedImage, in order to display it on screen in an
applet?
I first tried ImageIO.read(), but that does not work for cmyk jpegs. I then
looked into the com.sun.image.codec.jpeg package, and tried methods like
decodeAsBufferedImage() and decodeAsRaster().
The first one (decodeAsBufferedImage) returned an image, but it seems that
it was interpreted as an ARGB, and the colors were incorrect.
I then read the documentation which (amongst many other things) stated that
"If the user needs better control over conversion, the user must request the
data as a Raster and handle the conversion of the image data themselves."
This made sense, so I took to decodeAsRaster(), only to find that I could
not figure out how to carry out the desired conversion.
Of course, I have looked into the documentation for BufferedImage, Raster,
ColorModel, ColorSpace etc, but after a while I was lost. (Before I got lost
I read that you can convert images with the help of methods like toRGB,
toCIEXYZ.)
I have a feeling that this is probably pretty simple if you just know how to
do it, but I sure would need some directions here.
Any help would be appreciated. Thanks.You can either use the "Place" command from the main menu, under "File", or you can just open it, select the move tool "V", the click in the image and drag it to the other file's tab.
-
How can I save an image I have created in Pages as a jpeg?
How can I save an image I have created in Pages as a jpeg? The image has both a photo and various text boxes. I would like to use it in one of the Photocard websites but they only accept jpeg. Any easy solutions please.
Hold command shift 4 and draw a box around what you want and then click again, on your desktop a .png file will appear.
To convert it to jpeg, open it in Preview and Save as.
if you want all your screenshots to be jpg, download the free Tinkertool and make the change.
http://www.bresink.com/osx/TinkerTool.html -
What is the best format to import images into iBA? How should I compress my images before importing? What is the best file format? PNG? Jpeg? I'm trying to figure out the best file format / compression for importing images into iBA. Also, does anyone know how iBA will compress the file? Are the assets attached (like a website) or flattened out? Does anyone know how iBA handles this? Many many thanks to anyone with insight into this.
This question is largely answered by the following thread...
https://discussions.apple.com/message/17805700#17805700 -
How to set color space to JPEG image with Java advance Imaging
How to set color space to JPEG image with Java advance Imaging.
is there any API in JAI which support to set color space.I'm definately no guru, but this is how you can change it.
CTRL + ALT + Click on the part of the component that you want to change. This brings up the Hidden Dom Inspector, background of component will be surrounded with a red outline (Make sure the red outline is surrounding the part of the tabset you want to change), Now you go to properties sheet and click the ellipses next to rules property this will pop up a dialog you look in this list (At the top) to see the default style classes that are affecting the rendering of the component outlined in red. (You will be able to select different sections of a single component) then you just rewrite the style class that you want to change in your Stylesheet (You will not find the styleclass that you want to change because it is a part of your theme .jar but as long as you name it exactly the same and place in your stylesheet it will override the theme .jar style classes) it's actually very easy -- you were right should be a piece of cake for a guru. Don't have the link handy but you can check out Winston's Blog on changing Table Formatting to get this information...It is EXTREMELY useful if you want your apps to have a custom look and not default that comes with Creator Themes.
Hope this helps you out God knows others have helped me alot!
Jason -
How to save applet in image(gif/jpeg) format
Hi there !
how to save applet in image (gif/jpeg) format. i have just gone through JIMI package where serilization is there ,WHERE U CAN SORE in image format ...........can anybudy help me out.........if possible then pleeez provide me some example.
Thanks in advan...........I think that is possible because i have seen some commercial applets that do that.
-http://www.izhuk.com/painter/
-http://www.lawrencegoetz.com/programs/signature/
Thses two saves the image in the server since applets cant write in the host they are running. Maybe it would be possible whit JFS, i don't know.
For now I am trying to store an image draw in the applet on my server.
My idea now is copying the image to a buffer or something, open a connection to the server and receive the image with a perl CGI.
There is an example with text:
-http://java.sun.com/docs/books/tutorial/networking/urls/readingWriting.html
I want to do something similar but with an image.
Maybe you are looking for
-
Captivate 3/4 SWF does not play
When I create a Captivate demo, whether it is in Cap3 or 4 and publish it (SWF, zip file, full screen, Flash 7) and send it to others on my team, many of them cannot open the file. I have no idea why I can run it but they cannot. After I loaded IE
-
I open the firefox and open 3 tabs, when i close 1 tab, all will close down and crashes then it tells me to restart or close. It was never like this!!! How do I fix this problem.
-
Mouse drag, hand tool not working at all!
So I've installed Photoshop CC 2014 and Illustrator CC 2014 on my computer, started a new file but only found that any action that includes mouse dragging - creating shapes, hand tool, pen tool - do not work at all, everything just do not respond, wh
-
Battery standby problem.
I was not well last night so i just charged my phone to 100% and kept it in the cupboard. When i removed it this morning it has only 43% of battery. It shows 11h 10m standby and 10h 36m usage. What can be using my battery overnight. Any help will be
-
Can not get FaceTime to work in Lion
FaceTime does not connect to server under Lion.