Re: [lazarus] Contribute Contactless Measurement Tool
I cannot to achieve suitable work using neither VideoForLinux nor VideoForWindows AP I wrote a program called MICAM in Delphi for capturing microscope images. I used VFW, but switched to DirectShow. I know this isn't useful for Linux, but it should be possible to convert the code to Lazarus (for windows only) When you are interested take a look at: http://members.home.nl/mvanwesten/en_microscope.html Marien van Westen
Re: [lazarus] Contribute Contactless Measurement Tool
I'm sorry but it seems the project will be still far from what was declared for a long time. I cannot to achieve suitable work using neither VideoForLinux nor VideoForWindows API because they are too primitive. They are not allow to change gain and exposure of webcamera. Without this adjustments i cannot get reliable LED detection without noise. VideoForLinux driver is bad twice: it's driver gives sometimes slided image from my Logitech QuickCam. At the same time this cam works OK via VideoForWindows. VideoForLinux2 driver doesn't see this cam at whole. Creative VoiceCam hasn't driver neither for VideoForLinux nor for VideoForLinux2. So i forced to look for suitible desicion using M$ DirectShow... Reality brings me back to Windowse... //-- //aka skywriter _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Contribute Contactless Measurement Tool
There is a standard for UNIVERSAL CCD CAMERA DLL DRIVER INTERFACE (writen in delphi. This document describes a software library created to interface CCD cameras and client control software.(windows).This standard defines a low level camera control library that is not in charge of things like human interface, graphics, etc; this will be taken care of by the control software. (A port for lazarus would be beneficial)... If this is useful let me know..? (send me a email and I will forward this to you) (source for the library is also available - GPL?).. ALEX At 05:19 PM 25/09/2007 +0400, you wrote: I'm sorry but it seems the project will be still far from what was declared for a long time. I cannot to achieve suitable work using neither VideoForLinux nor VideoForWindows API because they are too primitive. They are not allow to change gain and exposure of webcamera. Without this adjustments i cannot get reliable LED detection without noise. VideoForLinux driver is bad twice: it's driver gives sometimes slided image from my Logitech QuickCam. At the same time this cam works OK via VideoForWindows. VideoForLinux2 driver doesn't see this cam at whole. Creative VoiceCam hasn't driver neither for VideoForLinux nor for VideoForLinux2. So i forced to look for suitible desicion using M$ DirectShow... Reality brings me back to Windowse... //-- //aka skywriter _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives Alex Kovacic(PTC,HPTC,BSc,MSc) FISH Lab CYTOGENETICS UNIT, SEALS,Level 4, Campus Centre, Prince Of Wales Hospital, RANDWICK, NSW, 2031, AUSTRALIA, Tel: (61) (02) 9382 9168 Fax: (61) (02) 9382 9157 email1:[EMAIL PROTECTED] email2:[EMAIL PROTECTED] - _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Contribute Contactless Measurement Tool
On Wed, Sep 12, 2007 at 01:12:48PM +0300, Razvan Adrian Bogdan wrote: On 9/4/07, Alex Kovacic [EMAIL PROTECTED] wrote: TELL ME MORE - I have a ethernet camera running a linux server and want to capture line scan images at 3000f/s.. (frames or lines?) Operating systems have their own way of capturing, windows used VFW and DirectX, Linux has V4L and V4L2, network capturing should be easier but it's not done with normal capturing interfaces but directly receiving images usually in JPEG format using TCP, check out the network protocol for your camera and rather use LNET, Indy or Synapse for what you need, if should be easier than interfacing with V4L (Video for Linux). Nearly all higher speed camera's (and specially ones that yield true images, and not compressed streams) use proprietary drivers and client libraries, and the ethernet camera's are usually using cut down stacks. The fastest linescan camera we use (under Windows) goes till about 80 mpixel/s. _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Contribute Contactless Measurement Tool
What's the status on this? Sorry, temporarily i'm too busy in my current LUG and sober movement tasks. _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Contribute Contactless Measurement Tool
Marco van de Voort schreef: On Mon, Sep 03, 2007 at 02:52:22PM +0200, Marco van de Voort wrote: On Mon, Sep 03, 2007 at 02:21:49PM +0400, 12 12 wrote: I almost finished work on part (tool) of project for contactless measurement of distance via webcam. It can: - capture image from webcam; - measure distance between lights according to calibration table. Despite of SysRec it will be true cross-platform. Somebody may find useful for him camera capturing routines. How can i contribute it to CCR? I'm very interested. But I'm not in charge of CCR. Could you mail it to me private? What's the status on this? AFAIK, I have not received anything yet, so I could not publish it on CCR. Vincent _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Contribute Contactless Measurement Tool
On 9/3/07, 12 12 [EMAIL PROTECTED] wrote: I almost finished work on part (tool) of project for contactless measurement of distance via webcam. It can: - capture image from webcam; - measure distance between lights according to calibration table. Despite of SysRec it will be true cross-platform. Somebody may find useful for him camera capturing routines. How can i contribute it to CCR? SysRec wasn't complete, more like an example program of how to do it :) a CrossPlatform way of doing things is needed but the same old problem is that we don't have time to do anything we want ... Keep up the good work ! Razvan _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Contribute Contactless Measurement Tool
On 9/4/07, Alex Kovacic [EMAIL PROTECTED] wrote: TELL ME MORE - I have a ethernet camera running a linux server and want to capture line scan images at 3000f/s.. Operating systems have their own way of capturing, windows used VFW and DirectX, Linux has V4L and V4L2, network capturing should be easier but it's not done with normal capturing interfaces but directly receiving images usually in JPEG format using TCP, check out the network protocol for your camera and rather use LNET, Indy or Synapse for what you need, if should be easier than interfacing with V4L (Video for Linux). Once you have the images you can use the same code for processing images that already exists for native interfaces, i don't remember exactly but i think FPImage had some ways of accessing images in a similar way to scanlines that offered a pointer to each line and the whole buffer of pixels, which is much faster than pixel by pixel analysis. Razvan _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
[lazarus] Contribute Contactless Measurement Tool
I almost finished work on part (tool) of project for contactless measurement of distance via webcam. It can: - capture image from webcam; - measure distance between lights according to calibration table. Despite of SysRec it will be true cross-platform. Somebody may find useful for him camera capturing routines. How can i contribute it to CCR? _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Contribute Contactless Measurement Tool
On Mon, Sep 03, 2007 at 02:21:49PM +0400, 12 12 wrote: I almost finished work on part (tool) of project for contactless measurement of distance via webcam. It can: - capture image from webcam; - measure distance between lights according to calibration table. Despite of SysRec it will be true cross-platform. Somebody may find useful for him camera capturing routines. How can i contribute it to CCR? I'm very interested. But I'm not in charge of CCR. Could you mail it to me private? _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
