Display 16 bit channel images using AGAL3

I am trying to display dicom images (medical images) which usually have 16 bit R, 16 bit G and 16 B image channel (for gray scale R=G=B)
I have read that Context3DTextureFormat.RGBA_HALF_FLOAT can be used to represent the 16 bits per channel but I have not come across any examples or tutorials.
I am new to agal any pointers will be helpful. Thanks in advance.

I've had this problem with images saved as 8-bit scans.
Are you using any compression in the TIFs? I scanned using Nikon Scan 4, cleaned up a bit in Photoshop 7, reduced the bit depth to 8-bit, and saved at TIFs with embedded colour profile using ZIP compression, Macintosh byte order.
This used to work with Aperture 1.5.6, but with Aperture 2.0 I see a kind of offset pattern, so a vertical line looks like this:
If export the master TIF, open it in Photoshop (where it looks normal) and save it with no compression Aperture displays it properly.
(I'm still using Tiger, so I don't think this is an OS issue.)

Similar Messages

How to display multi-channel image in the 'proxy'?

There're many examples to show how to display composite channels in the 'proxy'. But I don't find any example to show how to display multi-channel image in the 'proxy'. I found that I can use PSPixelOverlay to display alpha channel data like this:
int nSpotChannel = gChannelCount - 4;
PSPixelOverlay* overlay = new PSPixelOverlay[nSpotChannel];
for(int i = 0; i < nSpotChannel; i++){
       if( i != (nSpotChannel - 1) )
             overlay[i].next = overlay + i + 1;
       else
       overlay[i].next = NULL;
       overlay[i].data = gChannelData + (4 + i) * nPlaneBytes;
       overlay[i].rowBytes = gProxyRect.Width() * gDocDesc->depth / 8;
       overlay[i].colBytes = 1;
       overlay[i].r = 230;
       overlay[i].g = 161;
       overlay[i].b = 174;
       overlay[i].opacity = 255;
       overlay[i].overlayAlgorithm = kStandardAlphaOverlay;
pixels.pixelOverlays = overlay;
Then, Seeing red part, it will trigger a new problem, that is how to get the color value of the alpha channel by plung-in itself? It seems that no channel color value info is in FilterRecord.
If you have other solution, please tell me. Many thanks!

This is what I've been doing - was just curious if there was a way to see a more cohesive image.
If the individual EQ plugins are in fact the answer, is there any way to smooth how the Analyzer displays? The image I posted above, all of the tonal curves are very smooth. The analyzer tool shows a lot of peaks and valleys within the overall curve and it's hard to pinpoint each instrument's "sweet spot." Vocals for example are very hard to spot.
- Morgan

Levels adjustment layer in a 16 bits/channel image

Since adobe removed the way i had been adding adjustment layers to 16 bits/channel images from pse 10, i had to try and find another easy way.
Here's the gist of it (if anyone's interested):
1. Open a camera raw image, in the camera raw dialog set the Bit Depth to 16 bits/channel and press open.
2. Duplicate the layer by selecting the move tool, hold down the Alt (option) key and move the image up just a bit (this duplicates the layer)
Select>All, use the align vertical centers and align horizontal centers in the tool options bar. Select>Deselect. (this aligns the layer)
3. Add a layer mask to the layer (the layer mask button on the bottom of the layers panel)
4. Make sure the layer mask is active by clicking on it. (this won't work if the layer mask is not active)
5. Choose the Smart Brush Tool, Nature and click on Cloud Contrast (levels adjustment layer added)
6. It's very important that you switch to another tool before doing anything else or elements is prone to crash.
7. Now hit Ctrl (cmd) +i to invert the layer mask (double click on the adjustment layer to open the adjustments panel)
8. Reset the Levels adjustment layer by clicking on the Reset to adjustment defaults button on the bottom of the adjustments panel.
Now your ready to adjust the levels on your image.
(i the screenshot i actually duplicated the background layer twice and renamed the Cloud Contrast 1 to Levels 1)
You can use this same method to get other kinds of adjustment layers, just try some of the different options in the smart brush menu.

Thanks for the tip R_Kelly. I still think it’s easier to use the sliders in camera raw e.g. exposure, fill light recovery etc.
However a levels adjustment could be useful for a badly exposed image where you want to drag in the extreme white and black points of the histogram.
I wonder how many other Elements hidden secrets are available!

Multi-channel imaging using NI frame grabber

We have a IMAQ 1408 being controlled by LabVIEW 8.0.
We wanna setup multi-channel imaging. All the channels work individually. However, when I was trying to show two channels simultaneously, only one channel works, and I got the following error message:
Error -1074397150 occurred at IMAQ Grab Setup.vi
Possible reason(s):
NI-IMAQ: A timeout error occurred while waiting for the specified event. If waiting for an image, verify that all video data is acquired within the timeout period. If waiting for a signal, verify that the signal assertion occurs within the timeout period.
I sometimes also get another error message asking me to assign different buffer to both channels. I understand that IMAQ 1408 has only one analog to digital converter (ADC) to digitize the incoming video. It can acquire from up to four different cameras, but only from one camera at a time.
I don't mind making the frame rate half. So I'm thinking of showing one channel at a time and make the two channels work alternantly. But I need to know how to confige the channels to make this happen.
Solved!
Go to Solution.

Hi Andrew,
Thanks for the reply! I've read the page. But it doesn't tell me how to assign the buffer.
Please see attached for my code.
Here is another error I got from channel 2:
Error -1074397158 occurred at IMAQ Grab Acquire.vi:10
Possible reason(s):
NI-IMAQ: No buffers configured for session.
Thanks!
Attachments:
grab_dual channel 2.vi ‏63 KB
grab_dual channel 2.jpg ‏41 KB

Displaying a dynamic image using a PDF file.

I am trying to find a way to display an image dynamically in my report. The image happens to be .pdf I have Crystal Reports XI and I have the graphic location formula completed "
10.93.138.250\Production\ProdOut\00\" & {Order_Record.URN_text} + "_p1.pdf" however it tells me PDF is not supported. Is there a way around this?

I have to agreed that what you are saying appears to be true from my attempts at getting .pdf files to work dynamically. Using .bmp and .jpg files seems to work just fine but not .pdf, .xls, or .doc.
In the Users Guide, in chapter 16, in the section titled "Working with static OLE objects" - it only talks about the picture type formats you mentioned and metafiles. Later in this section is where it explains how to make a static OLE object dynamic.
While it doesn't specifically say it won't work for other types - it sure doesn't seem to. I see no reason why this should be true however! Certainly Crystal appears to be set up to allow this and the fact that the objects are not images shouldn't matter. Why is there a picture tab and a conditional formula button next to the graphic location label on the object if it can't be used?
I'm trying to do something similiar to Carey. I have maps to customers in a customer list and they are in .pdf files. The location of the map is stored in the database. I'm putting together a report of service calls and I want to print the map with each call. It looks like I'll have to convert several thousand .pdf files to .jpg - that should be fun!
Any chance this limitation will be eliminated sometime soon...
Edited by: Randy Walter on Oct 2, 2008 6:40 PM

Display a grab image using subVI

Hi, i have a problem.. i hope it is easy to solve.
I did a VI using Grab IMAQdx so that i can adquire images from a USB Camera and save a video. It works great and i acquire and save the video. The problem is that when i try to do this VI as a subVI it doesn't work. For the subVI i'm using one terminal the one for the image display. When i run the program i can't see any image (set of images because i'm using grab and it seems like a video), but it seems that the subVI woks because when i open the file where the video was saved, the video is there but i can't see it at the momento on the front panel...
Any suggestions?
Solved!
Go to Solution.

Your main vi will not update the image that you acquire in the sub vi because you would be running your sub vi inside a loop ( I guess). What you can do is create a global variable of Image display indicator and update the indicator inside the sub vi. In the main vi create a seperate while loop and read the global variable and display it in the main vi. Need a better solution? please post your code.
The best solution is the one you find it by yourself

Bitmap images using Dreamweaver 4

I have Dreamweaver version 4, and though I can insert JPEG,
PNG, and GIF images the application won't let me insert BMP files
(I insert them, but the image won't appear). Is there any way I can
fix this?
thanks.

>>BMP files are displayed by > Internet Explorer
*only*
Depends on the kind of BMP file it is. And could depend on
the graphics card
of the users computer.
A BMP is a type of bitmap raster graphic in a data file
representing
generally rectangular grid of pixels (points of colour). The
colour of each
pixel is individually defined usually in three bytes...one
byte for each
portion of the RGB colour space.
Photoshop reserves the term "bitmap" for one-bit/channel
images (pure black
or white).
Microsoft's BMP files are generally compressed and need not
even contain
bitmap data (they can contain indexes into palettes).
The monitor doesn't get the raster image. Rather, it gets a
signal which
scans the screen 60 times a second. It's the graphics card
that gets the
raster: it contains memory which it can read and the computer
can write. Of
the several ways the raster could be stored in that memory -
all the red
values together, or the threee colours for each pixel
together, and
vertically or horizontally, etc. etc. - most are in use by
various graphics
cards. It's the job of the device driver toy copy that memory
in the correct
format for the card.
> because the format was invented by Microsoft (I'm
guessing.)
I believe the BMP format was originally developed by IBM but
evolved through
several states by Micosoft since. Microsoft "invented"
version 4 and version
5, BMP formats, for instance.

Display byte array image or ole object in Section through dynamic code?

To Start I am a Complete Newbe to Crystal Reports. I have taken over a project originally written in VS2003 asp.net using SQL Server 2005 and older version of Crytal Reports. I have moved project to VS2010 and Cryatal Reports 10 still using SQL Server 2005. Have multiple reports (14 to be exact) that display data currently being pulled from database suing a dataset, each report has from 4 to 14 Sections. I have modified database table with two new fields. Field1 contains string data with full path to a scanned document (pdf or jpeg). Field2 holds a byte array of the actual image of the scanned document. I have tested the database and it does infact contain the byte array and can display the image via VB.net code. I can make the report display the scanned image using ole object.
Now my real question: I need to add a new Section and it should display either the byte array of the scanned image or the actual scanned image (pdf or jpeg) . How can I have it do either of these options via code dynamicly while application is running?

First; only CRVS2010 is supported on VS2010. You can download CRVS2010 from here;
SAP Crystal Reports, developer version for Microsoft Visual Studio: Updates & Runtime Downloads
Developer Help files are here:
Report Application Server .NET API Guide http://help.sap.com/businessobject/product_guides/sapCRVS2010/en/xi4_rassdk_net_api_en.zip
Report Application Server .NET SDK Developer Guide http://help.sap.com/businessobject/product_guides/sapCRVS2010/en/xi4_rassdk_net_dg_en.zip
SAP Crystal Reports .NET API Guide http://help.sap.com/businessobject/product_guides/sapCRVS2010/en/crnet_api_2010_en.zip
SAP Crystal Reports .NET SDK Developer Guide http://help.sap.com/businessobject/product_guides/sapCRVS2010/en/crnet_dg_2010_en.zip
To add the images, you have a number of options re. how to. You even have two SDKs that y ou can use (RAS and CR).
Perhaps the best place to start is with KB [1296803 - How to add an image to a report using the Crystal Reports .NET InProc RAS SDK|http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes_boj/sdn_oss_boj_bi/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/scn_bosap/notes%7B6163636573733d36393736354636443646363436353344333933393338323636393736354637333631373036453646373436353733354636453735364436323635373233443330333033303331333233393336333833303333%7D.do]. The KB describes how to add images to a report using the InProc RAS SDK, but also references other KBs that use CR SDK.
Also, don't forget to use the search box in the top right corner of this web page.
Ludek
Follow us on Twitter http://twitter.com/SAPCRNetSup
Got Enhancement ideas? Try the [SAP Idea Place|https://ideas.sap.com/community/products_and_solutions/crystalreports]

How can simple tools be used in 32-bit-per-channel images?

I have just begin working with HDR imaging. I am using it for what it was designed for. The subject of the photograph is a creek, looking straight across the creek to the far bank. The creek and the far bank are in bright sunlight. I was in woods, and deep shadow, when I took the photograph, and so the foreground is very dark. I converted the image to 32 bits/channel when merging it into HDR Pro, and used ACR to tone the final image. All of that worked very well.
But when I wanted to make some final little adjustments to the image, I found that I coulnd't! I wanted to select a color range, but the Color Range option was grayed out. I tried to use the magnetic lasso, but a message box popped up saying that I couldn't use that tool in 32-bit images.
I don't understand this limitation. 32 bits are supposed to be best for HDR images, but I can't use simple tools to edit the result?
And then when I switched to 16 bits, it seems I have to merge the channels first, but that loses all of the smart filters and other history that I had when working in 32 bits!
What is the best workflow for doing this? Is there something I am missing that would help?
Thanks very much!
RobR

Thanks again for helping me understand.
But I'm afraid I'm still a fair bit mystified. I'm trying to move away from why 32-bit is different from 16-bit and into what is the typical workflow for an HDR image where the goal is a realistic scene.
Are all edits typically done in ACR? Or do people accept the loss of the ability to use ACR when they switch to 16-bit mode to get the simple tools like selection, dodge/burn, and so on? It seems to me that the best of both worlds is to save the ACR-only version of the image and then convert to 16 bits and, once final editing is complete, to save that version separately? That way, should the ACR need to be adjusted, it could be done starting from the original settings, and only the 16-bit changes would need to be redone manually.
Thanks again.
RobR

Graphics, ImageIO, and 32-bit PNG images with alpha-channels

I have a series of 32-bit PNG images, all with alpha channels. I'm using ImageIO.read(File) : BufferedImage to read the PNG image into memory.
When I call graphics.drawImage( image, 0, 0, null ); I see the image drawn, however all semi-transparent pixels have a black background, only 100% transparent pixels in the source image are transparent in the drawn image.
The Graphics2D instance I'm drawing to is obtained from a BufferStrategy instance (I'm painting onto an AWT Canvas).
Here's my code:
Loading the image:
public static BufferedImage getEntityImage(String nom, String state) {
          if( _entityImages.containsKey(nom) ) return _entityImages.get( nom );
          String path = "Entities\\" + nom + "_" + state + ".png";
          try {
               BufferedImage image = read( path );
               if( image != null ) _entityImages.put( nom, image );
               return image;
          } catch(IOException iex) {
               iex.printStackTrace();
               return null;
     private static BufferedImage read(String fileName) throws IOException {
          fileName = Program.contentPath + fileName;
          File file = new File( fileName );
          if( !file.exists() ) return null;
          return ImageIO.read( new File( fileName ) );
     }Using the image:
Graphics2D g = (Graphics2D)_bs.getDrawGraphics();
g.setRenderingHint( RenderingHints.KEY_ANTIALIASING , RenderingHints.VALUE_ANTIALIAS_ON);
public @Override void render(RenderContext r) {
          Point p = r.v.translateWorldPointToViewportPoint( getLoc() );
          int rad = getRadius();
          int x = (int) p.x - (rad / 2);
          int y = (int) p.y - (rad / 2);
          BufferedImage image = Images.getEntityImage( getCls(), "F" );
          r.g.drawImage( image, x, y, null );
     }

You may want to check on you system and see what ImageReaders are available, it could be ImageIO is just not picking the best one, if not, then you can use getImageReaders to get an iterator of image readers, then choose the more appropriate one.

Display/save 8 bit grayscale image

I have a VI that is capturing an 8 bit grayscale image (1D array of 1500 pixels). It has a 10 byte header that I strip off and try to display it. The problem is that the displayed picture is interpeted as an RGB. Also, the saved image can be opened using a picture viewer but is not correct. It is missing the pixel data. How do I get this to display as an 8 bit grayscale image. I would also like to duplicate the 1 row of image data to about 50 rows so that it is easier to view. using a for loop and indexing the row only leaves the pxmao empty.
Solved!
Go to Solution.

Bjoles,
You are missing a colour table input to your flatten pixmap block. See the vi snippet I have attached. Also, I have found that building arrays from a for loop is a quick way of doing it, Labview seems to preallocate the memory correctly.
Luke_A_P
Attachments:
build stripe.png ‏24 KB

16 Bit Tiff Images Display Bug?

Question 1:
Is there a problem with Aperture 2.0 displaying 100 + mb 16 bit tiff images generated by a film scanner (nikon coolscan 4000 ed)? I am having trouble with my library that I migrated from Aperture 1.5. All of my images were working fine in Aperture 1.5 (and previously in iPhoto as far back as 2003). In Aperture 2.0 I am getting scrambled images and some images that read unsupported file format. The problem is sporadic. It effects some images and not others. Sometime images display correctly and sometime they become scrambled and unsupported, and then back again.
There is no trouble with the images themselves. I export them to CS3 with no distortion or trouble. The problem seems to be in Aperture 2.0.
I have re-built the library, tried migrating images, changed the color profile.... I think I have exhausted every trick I can manage from a user vantage point. The images work fine when converted to 8 bit files. This is not the solution for me - I need to keep these images 16 bit.
Question: Is this this just my version (I purchased downloaded upgrade), that is having trouble, or is this a wider problem that Apple aware of and is looking into?
Please advise. I have 1000's of scanned pictures that I have been working with for years that were fine and now are not. I purchased a new Mac Pro 2.8 so as to work more productively with these large images - and now it seems that the very software I rely on has failed me.
I have not been able to find any comments from Apple regarding this issue.

I've had this problem with images saved as 8-bit scans.
Are you using any compression in the TIFs? I scanned using Nikon Scan 4, cleaned up a bit in Photoshop 7, reduced the bit depth to 8-bit, and saved at TIFs with embedded colour profile using ZIP compression, Macintosh byte order.
This used to work with Aperture 1.5.6, but with Aperture 2.0 I see a kind of offset pattern, so a vertical line looks like this:
If export the master TIF, open it in Photoshop (where it looks normal) and save it with no compression Aperture displays it properly.
(I'm still using Tiger, so I don't think this is an OS issue.)

Help displaying an image using the canvas!!!!!!!!

Hey guys
I don't know whether I am not grasping some concepts well.I have been going mad trying to get the code working
Here is the code
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.io.*;
* @author Administrator
* @version
public class MyMIDlet extends javax.microedition.midlet.MIDlet implements CommandListener{
private Display display;
private MyCanvas canvas;
private Command exitcommand = new Command("Exit",Command.SCREEN,1);
private Image source;
public MyMIDlet() {
protected void startApp() throws MIDletStateChangeException{
if (display == null){
initMIDlet();
protected void pauseApp() {
protected void destroyApp(boolean unconditional)throws MIDletStateChangeException {
exitMIDlet();
public void commandAction(Command c, Displayable d) {
if (c == exitcommand){
exitMIDlet();
protected void initMIDlet() {
display = Display.getDisplay(this);
canvas = new MyCanvas(this);
System.err.println("Canvas instiated succesfully");
canvas.addCommand(exitcommand);
canvas.setCommandListener(this);
display.setCurrent(canvas);
public void exitMIDlet() {
notifyDestroyed();
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import java.io.*;
public class MyCanvas extends Canvas implements Runnable {
private MIDlet midlet;
private Image offscreen;
private Image currentimage;
private Graphics g;
//MID profile application
/** Creates a new instance of MyCanvas */
public MyCanvas(MIDlet midlet) {
this.midlet = midlet;
try{
currentimage = Image.createImage("/bird0.png");
}catch(IOException e){
System.err.println(e.getMessage());
if (currentimage!= null){
System.err.println("Image create successfully");
}else{
System.err.println("Image not created");
try{
Thread t = new Thread(this);
t.start();
}catch(Execption e){}
protected void paint(Graphics g){
Graphics saved = g;
int x = getWidth();
int y = getHeight();
g.setColor(255,255,255);
g.drawImage(currentimage,x,y,g.TOP|g.VCENTER);
public void run() {
repaint();
I know for a fact that the Canvas class 's paint method is called by the system and not the application. This poses a problem for me because I am not sure how to pass the image to the piant method, so that it can be painted.
When I run the program(using J2ME wtk04), this is the outcome.
Image created succesfully
Canvas instiatiated successfully
null
Here are my questions
1) when is the paint method precisely called by the system?after a reference to the canvas class is created?
2) is it wise to create the image when instiating the canvas class?( initially created the image using a separate thread)-when sould the image be created?
3)how to let the application know when to use the image when painting the display area?
I am just trying the logistics here. It is very crucial to me to understand the bolts of this as the core f my project fouses on the man machine interface development.(For the project, the cilent application is quering for the map using HTTP)
I use a png file of size 161 bytes. Is that too big for testing purposes.
I would all the help that I can get. thanks in advance

1) when is the paint method precisely called by the system?after a reference to the canvas class is created?
After the canvas is set as the current display, and after that, after the repaint() is called.
2) is it wise to create the image when instiating the canvas class?( initially created the image using a separate thread)-when sould the image be created?
It's better to create the image in the very begining of the program e.g. in the midlet initialization. You can call the created image as often as you like later on
3)how to let the application know when to use the image when painting the display area?
you have to tell it :))
you can use if-then, switch, or anything else
and you can use clipping too

Using an animated gif/other to display series of images within another image?

I design custom baseball cards for a hobby, and am wondering if I can use an animated GIF inset within a large photo to display a rotation of images.
It is easiest if you look at the "card"/image . . . within the circle, where there is a picture of Ruth holding some bats, I would like to add a series of several images that would rotate through (obviosuly the "card" would be for viewingonline rather than printing).
Is it possible to do? I am thinking an "animated gif" would be the easiest, but if there is some other way (video, etc.). I am open to that.
I just would like to know if the goal can be done, and if so, how to do it.
TIA!!!

That can be done with a gif. You just set up your bg image, then have a series of layers for your insert. Create a frame animation by opening it in Window>Timeline. Have all your insert layers except one turned off. Create a new frame, the turn on the next layer. Keep repeating creating a new frame and turning on a new layer. When you're done, you can set the time each frame displays. Save it using save for web using the gif option.

How to upload and display image using bsp application

hi
I just wants to know that
1- how to upload image from BSP page with attachment into sap server .?
2-how to display image in to BSP page(webpage).
thanks

Hello Gupta Prashant,
Just to upload and display an image, import image in MIME repository. Not only still images but also flash files can also be uploaded in the MIME repository. Once you import the image in it, use normal html code for image call;
<img src = "file.jpg/gif" width= height=>
Besides it, if your requirement is to store the image in the database and fetch it based on specified field-name, then you have to go for BLOBs i.e Binary Large Object, using this you can also store images, videos, pdfs, applications in the database.
MBLOB - Medium BLOBs store videos and pdfs,
LBLOB - Large BLOBs store movie files and applications.
You have got 2 ways to use it; some databases store BLOB objects into themselves and some store the path of the BLOB object maintained on the FTP server.
You can also implement it in ABAP;
read the following link and practice the tutorial;
[ Use of MIME Types|http://help.sap.com/saphelp_45b/helpdata/en/f1/b4a6c4df3911d18e080000e8a48612/content.htm]
also check this
[TYPES - LOB HANDLE|http://help.sap.com/abapdocu/en/ABAPTYPES_LOB_HANDLE.htm]
And looking at your question, in order to upload an image, you can make use of FILEUPLOAD tag provided by HTMLB.
Step 1: FILEUPLOAD provides a browse button to choose desired image file.
Step 2: Store that image in database using BLOBs.
Step 3: Retrieve the image using normal select query and display it on the screen.
Hope it helps you,
Zahack

Display 16 bit channel images using AGAL3

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