8 vs 10-bit (FCP) image processing.

Is there a noticeable difference between FC Express (8-bit) vs FCP 5 (10-bit) image processing (my DV camera is 12-bit)?
Thanks for the info!

FCE isn't 8-bit.
According to the Apple website, FCE uses 8-bit image processing (while FCP 5 uses 10-bit):
http://www.apple.com/finalcut/index.html
(scroll down to "editing" section)
And your DV camera being 12-bit? That is referring to the AUDIO.
I have a Panasonic DVX100B, and the audio is PCM 16 bit, 48 KHz sampling. I am refering to the image processing. The video analog-to-digital converters are 12-bit, but you're right DV is quantized to 8-bit.
FCP 5 handles not only DV, but UNCOMPRESSED 8-bit and 10-bit formats. FCE does not...it only handles DV. Noticable difference? Only to an engineer who scrutinizes the image.
So, FCP 5 only uses 10-bit processing when working with uncompressed files? Thanks for the info. Sorry, I'm still a little confused.
If I'm working in standard-definition DV, will FC Express still give me the best image quality available?

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Image processing from .txt file onto an intensity graph

I am doing a mini project in my class and I was wondering if anyone could help me. It about image processing but I am bit stuck.
Heres the idea:
"An image is really nothing more than a 2D array of data. The value of every element in the array corresponds to the brightness of the image at that point.
In this project you will create a VI which loads a 2D array of data and then displays it on the screen using the Intensity Graph. Three example files (boats.txt, gordon.txt and parrot.txt) are available on the module webpage that you can use. However, you can also use any other black and white image you like, but will need to convert it to a “text image” first. To do this you can use some software called “ImageJ” which is available on the computers and is free to download.
You can vary the brightness of an image by adding the same value to every element in the array.
The contrast of an image is adjusted by multiplying every element in the array by the same value. Using numerical controls and simple array mathematics, you should adjust the brightness and contrast of your displayed image.
Some other ideas that you could try with image manipulation are:
o Invert an image (change black to white and white to black)"
First I am having problems putting my picture onto the graph. It is in the write file but the colours are not correct and the image has rotated 90 degrees. I will upload my VI so far when I get back onto my computer.
Would really appricate the help! Thank you for reading

Hi charlthedancer,
Here is an example to get you started.
Kind regards,
GajanS
Attachments:
Test.vi ‏14 KB

Image processing - OutOfMemoryError

Hi,
I have a question about image processing programs. I want to write an image processing program (more as an exercise), so far I have succeeded with a few steps. I am able to create a new document and display it's contents on screen. It's based on the BufferedImage class basically. Now the problem is, when I enter dimensions in a New dialog to be 30000x30000 (that's a limit in Photoshop) I get an OutOfMemoryError such as below. How can I write a program that can be competitive to Adobe Photoshop. Photoshop can handle 30000x30000 pixels (and remember, it can have multiple layers etc.). How to achieve that in Java? Also, Photoshop (in the Preferences pane) allows to set the memory usage, there is a slider and one can just set how much memory Photoshop is about to utilize. Is that possible in Java?
Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space
        at pr.g.Picture.<init>(Picture.java:56)
        at pr.docs.DocCAN.<init>(DocCAN.java:24)
        at canvas01.DocHandler.createNewDoc(DocHandler.java:33)
        at canvas01.CanvasGUI.actionPerformed(CanvasGUI.java:309)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2028)
        at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2351)
        at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
        at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
        at javax.swing.AbstractButton.doClick(AbstractButton.java:389)
        at javax.swing.AbstractButton.doClick(AbstractButton.java:337)
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        at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1645)
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        at javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(JMenuBar.java:678)
        at javax.swing.JMenuBar.processKeyBinding(JMenuBar.java:649)
        at javax.swing.KeyboardManager.fireBinding(KeyboardManager.java:267)
        at javax.swing.KeyboardManager.fireKeyboardAction(KeyboardManager.java:254)
        at javax.swing.JComponent.processKeyBindingsForAllComponents(JComponent.java:2928)
        at javax.swing.SwingUtilities.processKeyBindings(SwingUtilities.java:1554)
        at javax.swing.UIManager$2.postProcessKeyEvent(UIManager.java:1454)
        at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:722)
        at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:990)
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        at java.awt.Container.dispatchEventImpl(Container.java:2143)
        at java.awt.Window.dispatchEventImpl(Window.java:2478)
        at java.awt.Component.dispatchEvent(Component.java:4566)
        at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:680)
        at java.awt.EventQueue.access$000(EventQueue.java:86)PR.

user5287726 wrote:
Andrew Thompson wrote:
Aardenon wrote:
..How can I write a program that can be competitive to Adobe Photoshop. ..Hire a team of programmers & analysts of the same general size as what Adobe assigns to Photoshop?
.. Photoshop can handle 30000x30000 pixels (and remember, it can have multiple layers etc.). How to achieve that in Java? .. Increase the memory size assigned to the app. at start-up. No, wait.. those figures would suggest the image takes up 900 MPix, and given 4 bytes per pixel (RGBA) would increases that to around 3.6 Gb. Java has a hard limit around 2 Gb, AFAIR.
Use a disk based store?If the OP is running a 64-bit OS, just use a 64-bit JVM. On a machine with a lot of RAM."My super duper Photoshop clone. Minimal system requirements: 64 bits CPU and 4gb of memory".
Although I would laugh to see that happen, I would cry at the same time because people will of course blame such ridiculous practices on the fact that Java is used.

How to count number of vehicles using image processing tools in LabVIEW

anyone can give me idea that how to do counting of vehicles using image processing tools

Hello,
if camera is stationary, first take an image of the background. Then subtract each acquired image from the reference image. Limit the region of interest - build a mask of the area, where you want to detect vehicles. Use only the pixels that are under the mask for further processing. You probably would need to do some morphological operations (for example dilate) to make the detection more noise-free...
Maybe you could get more reference images (different time of day) and compare the average intensities of the acquired and the reference image to select the best image for subtraction.
You could then probably just count the numer of objects to get the number of vehicles.
You can perhaps also use optical flow to track the vehicles, but you would need to compute some features for example strong corners for each vehicle (check good features to track, http://docs.opencv.org/modules/imgproc/doc/feature_detection.html). Or you can use the new mean-shift tracking library (Labview 2013).
Hope this helps a bit.
Best regards,
K
https://decibel.ni.com/content/blogs/kl3m3n
"Kudos: Users may give one another Kudos on the forums for posts that they found particularly helpful or insightful."

Read 16 bit binary image into LabVIEW, convert to TIFF and display

Hello,
I have what is probably a simple problem - I have RAW images (1536 x 1944) saved in binary files consisting of unsigned 16 bit integers that I need to read into LabVIEW and be able to view on the front panel (so presumably convert to TIFF or something like that).
This is not information that was written using LabVIEW - it was actually written using the fwrite command in C++ if that is any help, and has no header information.
I found this example VI:
http://forums.ni.com/t5/LabVIEW/read-the-raw-image-file/td-p/505871/page/2
The picture of the final VI solution that is posted at that link - it looked promising, but the flatten pixmap function appears to only take in 8 or 24 bit inputs, not 16 bit inputs, and I was unsure it if was possible to configure it for 16. Is it possible to use this same structure to read in my binary files as well? If so, what changes need to be made? Otherwise do I need a different function? I am very new to image processing in LabVIEW.
Thank You.

Hello,
The flatten pixmap function does not appear to be able to take in 16 bit inputs and I cannot find a function that flattens a 16 bit pixmap. Is there any way you can convert your binary file into that of 8 or 24 bits?
Also, I don't know if this other forum thread may help or give context to the subject.
http://forums.ni.com/t5/LabVIEW/Can-a-16-bit-image-be-displayed-in-a-picture-control/td-p/33347
Cameron T
Applications Engineer
National Instruments

How to create a 16-bit grayscale image from matrix of values

Hello all,
I'm having a problem converting a series of measurements into a specific image. I have a matrix of nxm dimensions (n and m variable), which contains measurement data. My intention is to transform this matrix into an image to be analyzed later on by an external software. The trick, however, is that the image has to be in 16-bit grayscale format: in grayscale for doing the image processing, and 16 bits to make sure that resolution is not hindered.
I've been looking around the web and still haven't found a way of somehow mapping the measurement values I have in that matrix into pixels (16-bit grayscale ones, that is). I have access to the Full Development System version of LabView, but not other toolboxes.
Does anyone have any suggestions?
Solved!
Go to Solution.

Hi everyone,
I've managed to get it to work thanks to some help from people on other forums. The key is to use the IMAQ driver, which gives the VIs necessary to create images on 16-bit grayscale (only supported nicely by PNG format apparently).
The discussion on the other forum can be found here: http://stackoverflow.com/questions/11101420/structure-of-16-bit-grayscale-image-to-be-generated-in-c...
The IMAQ driver can be found here: http://search.ni.com/nisearch/app/main/p/bot/no/ap/tech/lang/en/pg/1/sn/catnav%3adu,n13%3ahardwareDr...

Image Processing in C#

What I want to do is as in the following.
1. Load image from jpg/bmp file and display on the PictureBox or any other image control keeping image ratio
2. Perform Image Processing, for example, zoom in/zoom out, change brightness/contrast
Does any .NET class supports this? or should I implement it with my own code?
If I should make my own code, is the PictureBox optimal control?

Hmm. If you don't know where to start then maybe the do-it-yourself approach is not going to work for you.
Here's code for a simple control you can use to display an image with a transform matrix and a color matrix.
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Windows.Forms;
class ImageControl : Control
public Image Image
get
return image;
set
image = value;
Invalidate();
private Image image;
public Matrix Transform
get
return transform;
set
transform = value;
Invalidate();
private Matrix transform = new Matrix();
public ColorMatrix ColorMatrix
get
return colorMatrix;
set
colorMatrix = value;
Invalidate();
private ColorMatrix colorMatrix = new ColorMatrix();
protected override void OnResize( EventArgs e )
Invalidate();
public ImageControl()
this.DoubleBuffered = true;
protected override void OnPaint( PaintEventArgs e )
if( image == null ) return;
e.Graphics.ResetTransform();
e.Graphics.Transform = transform;
ImageAttributes imageAttributes = new ImageAttributes();
imageAttributes.SetColorMatrix(
colorMatrix,
ColorMatrixFlag.Default,
ColorAdjustType.Bitmap );
e.Graphics.DrawImage(
image,
new Rectangle( 0, 0, image.Width, image.Height),
0, 0, image.Width, image.Height,
GraphicsUnit.Pixel,
imageAttributes );
You can set a transformation matrix to do the zooming, panning, etc. And set a color matrix to do simple contrast brightness adjustments.
// Some example matrices
float[][] colorMatrixElements = {
new float[] {2, 0, 0, 0, 0}, // red scaling factor of 2
new float[] {0, 1, 0, 0, 0}, // green scaling factor of 1
new float[] {0, 0, 1, 0, 0}, // blue scaling factor of 1
new float[] {0, 0, 0, 1, 0}, // alpha scaling factor of 1
new float[] {.2f, .2f, .2f, 0, 1}}; // three translations of 0.2
ColorMatrix colorMatrix = new ColorMatrix( colorMatrixElements );
Matrix transform = new Matrix(
1.5f, 0.0f, // horizontal scale of 1.5, 0
0.0f, 0.5f, // 0, vertical scale of 0.5
20.0f, 40.0f, // horizontal offset of 20, vertical offset of 40
Contrast and brightness are performed together in a single matrix. Contrast scales the output range and brightness is the offset.
Zooming is just scale and offset.

Image processing with imaq vision with 2 webcams on the same computer

Hi,
I'm currently trying to set up 2 usb webcams (logitech quickcam for notebooks pro). I want to be able to have them both run simultaneously and do some image processing with the images that I get from both cameras with labview and imaq vision.
As of right now, I'm having trouble getting both cameras to run at the same time. Any help would be gladly appreciated. Thanks.

The USB IMAQ driver will not support running 2 USB cameras at a time (I believe it is a limitation of the DirectShow interface). You could open one camera, acuqire an image, close the reference to that camera and then do the same for the second camera.
If you need simultaneous acquisition, look at possibly moving to 1394 cameras or analog cameras.

Image processing

Sir,
I am a beginner in LAB View am using labview 2013.i want to do image recognition using labview.can you please give me some basic programs on image processing and image recognition so that i can understand atleast image acquisition and processing.i have only lab view software sir.should i download any other software for image processing? if so which software and is it free?please give me the link also sir.please help.
thank you.

Hi,
you can use LabVIEW to do image recognition. Here is an example of the basic functions to do so. You can also search some examples with the Example Finder.
This little program looks for an image in a folder. He analyses each picture, and makes a comparision between the searched picture and the pictures in the folder.
I hope it will help
Giuliano Franchetto
Student at the l'Ecole Nationale Supérieure des Mines de Saint-Etienne, cycle ISMIN (FRANCE)
Attachments:
img recognition.zip ‏43 KB

Image Processing in Bridge lost PSD originals HELP!

I am somewhat new to using Adobe Bridge CS4 super frequently, I have been processing batches of images mostly using the 'Image Process' function under tools>photoshop>image processing. I was using it to watermark my photos and size them down. It worked great, did everything I wanted it too and made it's own JPEG folder with all my processed images. HOWEVER I just discovered that when I process them it is somehow is taking the original image and flattening it so it looks like a JPEG even though the file still thinks it's a PSD file. The size is small and all the layers are gone, basically it looks EXACTLY like the JPEG file I'd just made but it's the original file and it's still a PSD (in theory!). I've been racking my brain trying to figure out when I'm doing wrong here! Been all over the internet trying to find a similar situation and I've had no luck. Any thoughts? I'd really appreciate the help. These particular photos are ready to go to print, but I've got my watermark on them and can't exactly remove the layer that isn't there anymore! HELP
Oona

Yes I was converting images from PSD to JPEG with the image processing but I was running an action (within the same dialog box) to make the file sizes much smaller for easy upload to the web? Does running an action affect the original as well as the processed images?

Image Processing in Java (E-Book) Request

Can anyone post the links for this e-book
i think this e-book is helpful.so,iam requesting all of you.
Image Processing in Java
by Douglas A. Lyon
Publisher: Prentice Hall PTR; Bk&CD-Rom edition (March 1, 1999)
Language: English
ISBN: 0139745777

Check ebay, amazon or your local seller for a copy. Or if you want a free copy, write the author (maybe he's a generous fellow), but don't bother people on this forum with posts like this.
- Travis

Image processing over wireless

Hi,
One of our subsidaries has a setup where continuous video stream is generated from certain application servers processing real time image processing.
The setup goes this way; 3 PC's which run these image processing & are connected to a 3750G switch.
This switch is uplinked to an access point which then carries all these over wireless to the image processing main server.
About two weeks ago, when they tested this ,all 3 PC's had issues running together when operators viewed/worked upon the images on them.
When either one or two of them is turned off, the rest works fine with no disturbance( intermediate stop & start of images ).
Please help with suggestions on what could be the cause. I suspect bandwidth, but since this doesn't cover any WAN links, i doubt that bandwidth is actually the problem.
Thanks in advance.

It depends. QoS will help if your having congestion on the wired side. WMM QoS will help for over the air. I would look at the switch port and see if you see drops on both the map and rap side. You might just be over utilizing the backhaul. Remember that it is half duplex link so that can be an issue also. I had an install with regular AP's and 3gb video uploads within 30 minutes and the only way to achieve that is only allowing 4-5 clients per AP. the testing you have done seems to show that the max you can do over that link is 2. How much other traffic is using the wireless. Maybe try to isolate those traffic on a separate RAP/MAP pair using AP Groups.
Sent from Cisco Technical Support iPhone App

Image Processing- comparing JPeg files

Hi All,
sorry for posting this question at this forum, but I could not find a separate forum for Image Processing. (although i could search for such forums, but i believe they are taken off.)
I want to compare one input jpeg file with 10 existing files and find the closest match.
can someone give me pointers to start with. i believe there are tools to achieve this.
thanx n regards

Not sure about the way you are using, but look at these links.
Resizing Photos for Emailing
http://www.apple.com/pro/tips/emailresize.html
Resize!
http://kstudio.net/
PhotoToolCM
http://www.pixture.com/software/macosx.php
SmallImage
http://www.iconus.ch/fabien/smallimage2/
ImageTool
http://www.macupdate.com/info.php/id/23281
ImageWell
http://www.xtralean.com/IWOverview.html
Resize JPEG Files
http://www.macworld.com/weblogs/macgems/2006/09/jpegresize/index.php
 Cheers, Tom

Image Processing Performance Issue | JAI

I am processing TIFF images to generate several JPG files out of it after applying image processing on it.
Following are the transformations applied:
1. Read TIFF image from disk. The tiff is available in form of a PlanarImage object
2. Scaling
     /* Following is the code snippet */
     PlanarImage origImg;
     ParameterBlock pb = new ParameterBlock();
     pb.addSource(origImg);
     pb.add(scaleX);
     pb.add(scaleY);
     pb.add(0.0f);
     pb.add(0.0f);
     pb.add(Interpolation.getInstance(Interpolation.INTERP_BILINEAR));
     PlanarImage scaledImage = JAI.create("scale", pb);3. Convertion of planar image to buffered image. This operation is done because we need a buffered image.
     /* Following is the code snippet used */
     bufferedImage = planarImage.getAsBufferedImage();4. Cropping
     /* Following is the code snippet used */
     bufferedImage = bufferedImage.getSubimage(artcleX, artcleY, 302, 70);The performance bottle neck in the above algorithm is step 3 where we convert the planar image to buffered image before carrying out cropping.
The operation typically takes about 1120ms to complete and considering the data set I am dealing with this is a very expensive operation. Is there an
alternate to the above mentioned approach?
I presume if I can carry out the operation mentioned under step 4 above on a planr image object instead of buffered image, I will be able to save
considerable processing time as in this case step 3 won't be required. (and that seems like the bottle neck). I have also noticed that the processing
time of the operation mentioned in step 3 above is proportional to the size of the planar image object.
Any pointers around this would be appreciated.
Thanks,
Anurag
Edited by: anurag.kapur on Oct 4, 2007 10:17 PM
Edited by: anurag.kapur on Oct 4, 2007 10:17 PM

It depends on whether you want to display the data or not.
PlanarImage (the subclass of all renderedOps) has a method that returns a Graphics object you can use to draw on the image. This allows you to do this like write on an image.
PlanarImage also has a getAsBufferedImage that will return a copy of the data in a format that can be used to write to Graphics objects. This is used for simply drawing processed images to a display.
There is also a widget called ImageCanvas (and ScrollingImagePanel) shipped with JAI (although it is not a committed part of the API). These derive from awt.Canvas/Panel and know how to render RenderedImage instances. This may use less copying/memory then getting the data as a BufferedImage and drawing it via a Graphics Object. I can't say for sure though as I have never used them.
Another way may be to extend JComponent (or another class) and customize it to use calls to PlanarImage/RenderedOp instances directly. This can hep with large tiled images when you only want to display a small portion.
matfud

Image processing Manupulation problem!!!

Dear all,
God Morning! hope u all are fine .. i have an issue regarding Image processing Manipulation.
i want to give u all the details.. what i have done so far in java.
i have used third party tool of java called ImageJ editor for image manipulation.i got the source of it i have made neccessary customization to store / fetch the image from my table (Database).now this editor is working fine when i click on open option from menu bar it fetches the image from database and after fetching it put the image on container where one can edit/ modify the image and save it back to the table.
the above proceeds me to display or store the edited image on the database . now i just want to integrate the editor on browser ..
how to call the class file when i click on the link on specified page and also how to pass parameter from jsp page to java class file.??
please help me to sort out d problem
"Thanks and regards"
Jonty

Increasing the contrast springs to mind.
When used to extremes it is sometimes called
'cartoonising'
Suppose your image was in 16 colors, you could
reasonably safely assume at least two are red, two
are blue, two are yellow ect.
With regards an algorithm you are looking to 'round
off' the color values to (my suggestion only) the
nearest 64 or even the nearest 127...
Bamkinjust be careful of that ORANGE color. Orange is a tricky color to define in either RGB or HSB, and is very similar to red and yellow. A little change in either direction makes it difficult to distinguish from one or the other.
my thought would be to try to force your image to only six colors. Then those colors (it wouldn't really matter if they were accurate, as long as they are correctly distinguished) would be easy to identify.
- Adam

8 vs 10-bit (FCP) image processing.

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