RSS Feeds :: canonsdk.com - Posts

Re: Canon SDK: Delay between still images

haakoo — 2010-08-24T01:47:13-06:00

No Canon camera that I know of manages to take 50 pictures each second, might be able to in video mode or with very low resolution (probably not). You need a "high speed" camera of some sort, can't help you with that.

Statistics : Posted by haakoo • on Tue Aug 24, 2010 7:47 am

Re: Canon SDK: Delay between still images

adelash — 2010-08-23T14:54:04-06:00

Hi Haakoo,
I am looking at 50 frames per second but 40 would work too. However, I do not want to take it in burst mode. To avoid the overhead of processing the image I do not mind that the image is saved on the camera since I can scavenge the pictures after my experiment.

Thanks

Statistics : Posted by adelash • on Mon Aug 23, 2010 8:54 pm

Re: Let's do this - create a comprehensive compatibility list

haakoo — 2010-08-23T04:33:45-06:00

I could test the cameras I have access to: 5D MkII and 7D, win XP/Win7 x64. And also Mac Os X 1.5.8 if possible.

Statistics : Posted by haakoo • on Mon Aug 23, 2010 10:33 am

Re: Canon SDK: Delay between still images

haakoo — 2010-08-23T04:29:50-06:00

You want 40 frames per second? How many frames are you looking at? And do you accept that the pictures are saved on the camera?

The SDK will not give you better performance than what the camera can do with normal operation.

Statistics : Posted by haakoo • on Mon Aug 23, 2010 10:29 am

Let's do this - create a comprehensive compatibility list

jumpfroggy — 2010-08-20T12:39:13-06:00

Hi call fellow Canon SDK'ers,

I've been working with the SDK's for a while now, and one sore point (besides the awful documentation... hello typos!) is the lack of a "real" compatibility list. Each SDK says which cameras it works with, but it's difficult to parse through each one to see a list of all cameras that work with which sdk's. Not to mention some cameras are listed in the docs, but not in the PDF, or on the website for the SDK, etc.

I propose this: let's get a comprehensive *tested* list together. I'd love to see a list with every compatible canon camera, which SDK they work with, and which OS. Also some extras would be nice like liveview, etc.

This is a theoretical list taken from canon:
"http://canonsdkwiki.rocketmonkeys.com/index.php/Camera_Compatibility"

They list SDK's, but not OS's. Since the powershots only do XP, that would be useful to know. Also,...

Statistics : Posted by jumpfroggy • on Fri Aug 20, 2010 6:39 pm

Re: ObjectEventHandler not called in .Net WCF service

steffen — 2010-08-19T03:39:26-06:00

Guerreiro,

I'm sorry to have no satisfiable solution. The way I had finally done it:
- Coding a Windows Forms application that talks to the camera (having no user inputs at all)
- A WCF service that notifies the Forms application on user's http requests (the service being self-hosted by the Forms app)

Take a look at Wayne Hartman's solution. It's half the way at least.

"http://blog.waynehartman.com/archive/2009/01/07/edsdk-to-remote-control-your-canon-camera.aspx"

Regards,
Steffen

Statistics : Posted by steffen • on Thu Aug 19, 2010 9:39 am

Get image name

guaitaku — 2010-08-10T12:31:41-06:00

Hi everybody,

I'm making a simple c# program that requires to get the image name as fast as the photo is taken (only the name by now, later I'll need other image properties). I've been trying different ways to do it, but I only approach to make a photo using the pc.

Any clue?

Thanks a lot.

Statistics : Posted by guaitaku • on Tue Aug 10, 2010 6:31 pm

Get image name

guaitaku — 2010-08-10T12:30:12-06:00

Statistics : Posted by guaitaku • on Tue Aug 10, 2010 6:30 pm

Re: ObjectEventHandler not called in .Net WCF service

guerreiro47 — 2010-08-10T04:25:19-06:00

I'm facing the same problem. my application triggers events in a windows form, but when I step to a webservice, the events are not fired.
You already find the solution?
if so could you provides it.

Statistics : Posted by guerreiro47 • on Tue Aug 10, 2010 10:25 am

FocusInfo

iapb — 2010-08-07T13:34:10-06:00

I am curious if anyone has had any success in getting valid information from the API for the focusinfo property. Everything seems to be functioning properly for me but the focusinfo array (128 items) appears to have bogus data and doesn't seem to update as liveview is running.

Any help or ideas here would be great.

Statistics : Posted by iapb • on Sat Aug 07, 2010 7:34 pm

Events problems

guerreiro47 — 2010-08-06T09:45:59-06:00

I created a webservice for controlling a canon 1000d. Photos are taken and stored on the card the machine.
I have an event that should be triggered when a photo shoot in order to capture the photo and save the photo in another location.
the problem is that the event and never quite fired.
if I run the application in a form in which the code is equal to the webservice the event is fired without any problems.

can someone give a help?

Statistics : Posted by guerreiro47 • on Fri Aug 06, 2010 3:45 pm

Canon SDK: Delay between still images

adelash — 2010-07-31T19:33:59-06:00

Hi, I am working on a project that involves taking still images at a high rate.. How long would one still image take? Essentially, if I call the function that takes a picture would it take seconds, milliseconds, or nanoseconds to return? I know this is dependent on the shooting mode and resolution (assume the default is set). Anyone did any benchmark tests on this? I am looking for a performance < 25 ms or it won't be worth purchasing a Canon.

Thanks

Statistics : Posted by adelash • on Sun Aug 01, 2010 1:33 am

create webservice to take pictures

guerreiro47 — 2010-07-28T05:12:42-06:00

I have a application to take pictures using edsks and it works fine.
Now i want to make a webservice to do that but I’m having problems with that.
Can anybody help me?

Statistics : Posted by guerreiro47 • on Wed Jul 28, 2010 11:12 am

Re: Callbacks not working

kritzikratzi — 2010-07-27T16:46:12-06:00

Hey all!

I have no idea how it would work on mac, but on windows it looks like i'm getting it to work with this command:

Code:: public static void dispatchMessages() { // This bit never returns from GetMessage int result; MSG msg = new MSG(); final User32 lib = User32.INSTANCE; HMODULE hMod = Kernel32.INSTANCE.GetModuleHandle(null); while ((result = lib.GetMessage(msg, null, 0, 0)) != 0) { if (result == -1) { System.err.println("error in get message"); break; } else { lib.TranslateMessage(msg); lib.DispatchMessage(msg); } } }

At the end of my code, just after connecting to the camera and opening the session, i just call dispatchEvent() which will obviously run forever.

This code is just copied from the jna list:
"http://www.java-forum.org/647697-post14.html#_"

Hopefully...

Statistics : Posted by kritzikratzi • on Tue Jul 27, 2010 10:46 pm

Windows 7 and XP compatibility issues

Augusto_ — 2010-07-27T11:10:55-06:00

Hi everyone,

I wrote a multithread program to take pictures with the CanonSDK. This is the basics of the program:

The thread number one runs a socket application, that waits for remote comands;

The thread number two enters in a MessagePump looping after calling thread number three;

The thread number three takes pictures in each period of time, like 5 minutes.
Here is the problem:

The program receives remote comands to take pictures and works correctly. But when I try to change the camera properties, I receive an "Internal_Error" answer.
The program works perfecly on Windows 7, but this problem appears when I try to run it in Windows XP.

I'd appreciate any help. Thank You.

Statistics : Posted by Augusto_ • on Tue Jul 27, 2010 5:10 pm

LCD Illumination using SDK

cmanton — 2010-07-26T18:51:13-06:00

Has anybody found a way to enable/toggle the LCD illumination using the Canon SDK ? It would be the same functionality as pressing the illumination button on the camera. I imagine it's some property or something that must be set, but I could not find anything in the C code. I'm looking to have it go on when my app starts, and go off when my app ends.

Statistics : Posted by cmanton • on Tue Jul 27, 2010 12:51 am

How-to load cr2 file from PC and display image

guyroch — 2010-07-23T17:31:13-06:00

First post on this forum

I've managed to take pictures and download images to PC in raw format using the ED-SDK 2.8. Now I'm trying to load the cr2 file (from the PC) and displaying it. I'm using C# but any help in any language would be appreciated.

Thanks

GuyRoch

Statistics : Posted by guyroch • on Fri Jul 23, 2010 11:31 pm

CapturePerfect SDK: How to get Barcode from image file?

alexei.surovi — 2010-07-15T02:59:02-06:00

Is there any possibility to get barcode from image file not from the scanner?

Statistics : Posted by alexei.surovi • on Thu Jul 15, 2010 8:59 am

Re: Limited amount of camera sessions before camera freaks out

mattp — 2010-07-13T15:08:26-06:00

The reason for the frequency of sessions is that my camera related code is built into a command line process. I had to take that approach for a bunch of reasons:

1. Any language capable of running sub-processes can control cameras by launching the camera process.
2. Speed and simplicity. Process is written in C. No JNI/JNA needed to control cameras with Java apps. No dangerous 'unsafe' sections to run it with C# apps.
3. Stops C# apps from dieing due to the language's poor heap management (Google 'C# heap compaction' if you don't know about C#'s serious heap management flaws).
4. This approach also makes it possible to control multiple cameras simultaneously from one app.

The end result for me is a responsive, memory conscientious, multi-platform (Windows and OS X) Java application capable of controlling multiple cameras simultaneously.

Statistics : Posted by mattp • on Tue Jul 13, 2010 9:08 pm

Setting Custom White Balance

iapb — 2010-07-10T06:47:30-06:00

Has anyone here implemented setting a custom white balance (using a gray card) through the SDK API?

Statistics : Posted by iapb • on Sat Jul 10, 2010 12:47 pm

50D flash synch port disables

iapb — 2010-07-09T15:42:05-06:00

I am wondering if anyone here has experienced what I am currently experiencing.

Scenario 1:
1. Camera (50D) is in normal mode of operation and is not connected to the PC via USB
2. Dial is set to manual mode.
3. Onboard flash is in the closed position.
4. External flash (AlienBees B400) is connected to the sync port.
5. When shot is taken external flash triggers as expected.

Scenario 2: THE PROBLEM CHILD
1. Camera is connected to the PC via USB.
2. Dial is set to manual mode.
3. Onboard flash is in the closed position.
4. External flash (AlienBees B400) is connected to the sync port.
5. When shot is taken (using CameraCommand_TakePicture) the external flashdoes not trigger.
** Additional Step **
6. Open onboard flash
7. Take another shot, again using CameraCommand_TakePicture, the onboard and external flashes both trigger as expected.

Has anyone experienced this? If so would you be so kind as to share how you resolved...

Statistics : Posted by iapb • on Fri Jul 09, 2010 9:42 pm

Re: Limited amount of camera sessions before camera freaks out

iapb — 2010-07-09T15:31:33-06:00

Is there a reason you are opening and closing sessions with such frequency? If you do not have a direct requirement to do so I would recommend connecting to the camera and not disconnecting until your application is terminated.

Statistics : Posted by iapb • on Fri Jul 09, 2010 9:31 pm

Is kEdsImageSrc_RAWFullView supported on Mac?

mattp — 2010-06-30T11:52:44-06:00

I have a simple C app built via Xcode for Mac that is misbehaving. I'm attempting to capture a RAWFullView image and simply save it to disk. My code works fine on Windows and when I change kEdsImageSrc_RAWFullView to kEdsImageSrc_FullView it works on Mac. The problem is FullView yields a ~20MB compressed file (JPG I think) and RAWFullView yields a 90MB uncompressed file, which is what I need. When I attempt to download RawFull my program goes nuts and dies. Whatever the SDK is doing is bad enough that Xcode's debugger stops functioning.

So my question is, has anybody been able to acquire RawFullView images on Mac via the SDK? If so, what's the trick?

*Edit

I got RawFullView working, sort of. What I needed was uncompressed image data and I found a work around to get it. It came down to some methods I was using that worked on Windows that are not supported on OSX. What I was doing was acquiring RAW data in memory on Windows (~90MB) and what I had to do on OSX was save the image...

Statistics : Posted by mattp • on Wed Jun 30, 2010 5:52 pm

WebView LiveScope SDK 2.2

ykanii — 2010-06-28T20:59:44-06:00

Hello,

I have the Canon WebView Livescope SDK 2.2 and I want to create a console application for the Canon VB-C60 network camera. My ultimate goal is to apply computer vision algorithms to the images captured by the camera using OpenCV. Is anyone familiar with the SDK and can help me answer these questions?

1. Is it even possible to create a console application using C++? In the Programmer's Manual, there is a section entitledUsing the SDK with Visual C++ 2008 (p.31) but it is really brief, and there are no explanations on creating a console application. There are no C++ samples included in the SDK, and all the samples in Visual Basic and Visual C# is not a console application.

2. I am using Windows XP Professional x64 Edition. The sample programs (both Visual Basic and Visual C#) on the SDK do not compile in 64 bit, only in 32 bit (x86). Why is this so? Can it still run on 64-bits? If so, what are the procedures to make it run in 64 bit mode?

Thanks!...

Statistics : Posted by ykanii • on Tue Jun 29, 2010 2:59 am

Re: Converting kEdsType_Rational types

Phil — 2010-06-28T08:29:16-06:00

Actuall, all I need to do was
Dim dataSize As Integer = 0
If EdsGetPropertySize(imageRef, kEdsPropID_Tv, 0, dataType, dataSize) = EDS_ERR_OK Then
if dataType = EdsDataType.kEdsDataType_Rational Then
Dim ptr As IntPtr = Marshal.AllocHGlobal(dataSize)
If EdsGetPropertyData(imageRef, kEdsPropID_Tv, 0, dataSize, ptr) = EDS_ERR_OK Then
Dim data As EdsRational = Marshal.PtrToStructure(ptr, GetType(EdsRational))
Dim shutterSpeed as string = data.numerator & "/" & data.nominator
End If
Marshal.FreeHGlobal(ptr)
End If

Statistics : Posted by Phil • on Mon Jun 28, 2010 2:29 pm

Converting kEdsType_Rational types

Phil — 2010-06-27T05:38:03-06:00

EdsGetPropertyData for shutter speed returns a "kEdsType_Rational" type. How do you convert it to something that VB can use?

I convert Integer types with
If EdsGetPropertySize(source, id, 0, dataType, dataSize) = EDS_ERR_OK Then
If dataType = EdsDataType.kEdsDataType_UInt32 Then
Dim ptr As IntPtr = Marshal.AllocHGlobal(dataSize)
If EdsGetPropertyData(source, id, 0, dataSize, ptr) = EDS_ERR_OK Then
Dim data As Integer = Marshal.PtrToStructure(ptr, GetType(Integer))
Marshal.FreeHGlobal(ptr)
Return data
End If
End If
End If

Statistics : Posted by Phil • on Sun Jun 27, 2010 11:38 am

Re: Xcode 3.2.2 - Snow Leopard 10.6.3 (Problems)

mattp — 2010-06-24T17:05:51-06:00

I had a variety of problems with Xcode too. It took a couple of hours to figure everything out and basically ended up being due to simple configuration stuff. This is a good place to document what I had to do so here goes nothing. I went through this a few hours ago so there is a good chance I've already forgotten a step/setting or two. Hopefully what I remember will be enough to help developers get started.

First problem, getting a copy of Xcode. Go to Apple's website and they'll try to charge you for a membership before you can get the *free* Xcode download. Good news is, you can get it off of your OS X install disk. Pop in your disk, a window shows up, click 'Optional Installs' and you should see 'Xcode.mpkg'. Open that and the installation starts.

Next you need to open Xcode. Even this step took a bit of time to figure out. After Xcode is installed, you can find it in the 'Developer/Applications' folder which is found in the same folder as your main 'Applications' folder.

At...

Statistics : Posted by mattp • on Thu Jun 24, 2010 11:05 pm

Re: Multithreaded use of EDSDK

mattp — 2010-06-24T16:25:03-06:00

I agree that EdsGetEvent() should not be used on Mac. On windows it seems to work fine but on Mac it only works in some situations. Calling it keeps EdsGetSession from hanging indefinitely but callbacks do not appear to work. My app(s) are simple command line apps and I'm new to Mac so if anybody knows how to implement a C event loop on Mac please post some example code.

***Edit
I spent a lot of time trying to get an event loop to work via Carbon and other things. Strangely, the only thing that worked was EdsGetEvent(). I don't know why I couldn't get it to work before my original post but it works now.

Statistics : Posted by mattp • on Thu Jun 24, 2010 10:25 pm

Re: Bug in EDSDK.cs gets PInvokeStackImbalance MDA

peteypops — 2010-06-17T05:13:04-06:00

Fantastic thanks Larry!

Statistics : Posted by peteypops • on Thu Jun 17, 2010 11:13 am

Re: C# Library to wrap the SDK

xerxesb — 2010-06-15T03:11:49-06:00

110 views and no comments...awesome.

i lost momentum to get this started, but if anyone else is interested in working on an OSS project, i'm happy to get together and get something started.

Statistics : Posted by xerxesb • on Tue Jun 15, 2010 9:11 am

Click to jump to page…

Page 1 of 4 • 1, 2, 3, 4