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IC4 Example Programs

License: Apache License 2.0

C++ 47.44% CMake 2.30% C# 40.01% Python 7.13% C 1.99% Visual Basic .NET 1.13%

c cpp dotnet example-code examples python ic4

ic4-examples's Introduction

IC4 Examples

Collection of IC4 examples.

License

All examples are released under the Apache 2.0 License.

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chansnotes

ic4-examples's Issues

Grabber does not stream live to a PySide6 embedded display

I am using the qt6-first-steps.py file to start working with ic4, and I'm able to detect my device. But when the app starts I am only shown the first image taken and it's still, not live updating.

Querying supported `PixelFormat`? And issues arising

Hello TIS

We have been lent a VGA camera (DFK 23G 618) whilst waiting delivery of some 4K versions. This is causing me some problems. Questions arising:

The devicePropertyMap content does not appear to be consistent with the DFK 33GX545. For example any attempt to set the image width/height fails with the following message

I am aware that the VGA camera only supports a single resolution but the error message is surprising.
What is the correct way to query and display the current camera pixel format? Setting like this seems to work but the VGA camera image data does not render correctly. It looks like it might be still sending some YUV format?

			static constexpr ic4::PixelFormat dev_format = ic4::PixelFormat::BGR8;
			ok = map.setValue(ic4::PropId::PixelFormat, dev_format, err);

This image is rendering what I think is 24bpp data with dimensions of 640x480:

Is there an IC4 function to convert an imageBuffer (whatever its format) to Windows style BGR (24bpp) or BGRA (32bpp)? All I can find are the write to a bitmap file family.
This camera has also shown a tendency to disappear. It is using the latest GigE and IC4 installations with the camera attached to a Netgear POE switch and connected directly to an i9 equipped PC.

Thanks again for listening. Any advice much appreciated.

Question re IC4 properties dialog

Hello.

Is the properties dialog running its own message loop in its own thread?

I ask as the minimal Win32 based example shown below will continue to allow update the incoming image as the various properties are modified without any problem.

But I've got one case where a DirectX9 based framework is in use and the properties dialog appears to block all messages whilst it is visible. This means modified property values are not visibly applied until the dialog is dismissed. Which is, of course, not what is required.

Any comments welcomed.

Many thanks.

stream_statistics frame missings ?

Hi,

I'm trying to use grabber.stream_statistics to know if I'm missing frames, but I don't understand the results I'm getting from it.
Sometimes a frame is missed, and i get the following stats:

Grabber.StreamStatistics(device_delivered=1000, device_transmission_error=0, device_underrun=0, transform_delivered=0, transform_underrun=0, sink_delivered=999, sink_underrun=0, sink_ignored=0)

My question is : where is my missing frame if it doesnt appear in stats but has been delivered by device ? Did I miss something in the documentation?

Another question : device_delivered does not seem to be more than allocated buffers in sink. Why is that ?

All the best,

The following code reproduce the problem on my PC:

import sys
import time

import imagingcontrol4 as ic4


def sleep_ns(duration):
    now = time.perf_counter_ns()
    end = now + duration
    while now < end:
        now = time.perf_counter_ns()

class MyListener(ic4.QueueSinkListener):
    def __init__(self):
        pass

    def sink_connected(self, sink: ic4.QueueSink, image_type: ic4.ImageType, min_buffers_required: int) -> bool:
        # Just accept whatever is passed
        sink.alloc_and_queue_buffers(2000)
        return True

    def sink_disconnected(self, sink: "QueueSink"):
        print("Disconnected !!")

    def frames_queued(self, sink: ic4.QueueSink):
        pass


ic4.Library.init(api_log_level=ic4.LogLevel.INFO, log_targets=ic4.LogTarget.STDERR)

for _ in range(20):

    device_list = ic4.DeviceEnum.devices()
    found_dev = None
    for dev in device_list:
        print(f"{dev.model_name} ({dev.serial}) [{dev.interface.display_name}]")
        if dev.model_name == "DMM 37UX265-ML":
            found_dev = dev
    if found_dev is None:
        print("No device matching foound")
        sys.exit(1)
    grabber = ic4.Grabber()
    grabber.device_open(found_dev)

    grabber.device_property_map.set_value(ic4.PropId.USER_SET_SELECTOR, "Default")
    grabber.device_property_map.execute_command(ic4.PropId.USER_SET_LOAD)

    grabber.device_property_map.set_value(ic4.PropId.PIXEL_FORMAT, ic4.PixelFormat.Mono16)

    grabber.device_property_map.set_value(ic4.PropId.WIDTH, 1024)
    grabber.device_property_map.set_value(ic4.PropId.HEIGHT, 768)

    grabber.device_property_map.set_value(ic4.PropId.BINNING_VERTICAL, 2)
    grabber.device_property_map.set_value(ic4.PropId.BINNING_HORIZONTAL, 2)

    grabber.device_property_map.set_value(ic4.PropId.OFFSET_AUTO_CENTER, "Off")
    grabber.device_property_map.set_value(ic4.PropId.OFFSET_X, 0)
    grabber.device_property_map.set_value(ic4.PropId.OFFSET_Y, 0)

    grabber.device_property_map.set_value(ic4.PropId.EXPOSURE_AUTO, "Off")
    grabber.device_property_map.set_value(ic4.PropId.EXPOSURE_TIME, 500) # microseconds

    grabber.device_property_map.set_value(ic4.PropId.GAIN_AUTO, "Off")
    grabber.device_property_map.set_value(ic4.PropId.GAIN, 0) # dB

    grabber.device_property_map.set_value(ic4.PropId.GAMMA, 1)

    fps = grabber.device_property_map[ic4.PropId.ACQUISITION_FRAME_RATE].maximum
    interval_ns = (1/fps)*1e9

    grabber.device_property_map.set_value(ic4.PropId.ACQUISITION_FRAME_RATE, grabber.device_property_map[ic4.PropId.ACQUISITION_FRAME_RATE].maximum)

    grabber.device_property_map.set_value(ic4.PropId.TRIGGER_MODE, "On") # allow to trigger images acquisition

    listener = MyListener()
    sink = ic4.QueueSink(listener, [ic4.PixelFormat.Mono16])

    grabber.stream_setup(sink, setup_option=ic4.StreamSetupOption.ACQUISITION_START)

    # time.sleep(1) # not working otherwise, probably initializing things

    for _ in range(2000):
        sleep_ns(interval_ns)
        grabber.device_property_map.set_value(ic4.PropId.TRIGGER_SOFTWARE, True)  # Trig image acquisition

    time.sleep(1)

    print(f"stream stats : {grabber.stream_statistics}")

    grabber.acquisition_stop()
    grabber.device_close()

Questions?

Hello,

Is this the right place to ask questions? Using the IC4 SDK with some GigE cameras.

Assuming yes then can I get the IP address of a connected unit?

ic4::DeviceInfo provides some details but less than I'd expect.

python ic4 library Grabber.is_streaming property not working

When checking is_streaming property, followig pops

File "......site-packages\imagingcontrol4\grabber.py", line 257, in is_streaming
return Library.core.ic4_grabber_is_streaming()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: this function takes at least 1 argument (0 given)

OS: Windows11
Python 3.11

Failure to connect to camera?

Hello.

Not sure if this is the best place to ask but suddenly cannot connect to camera. It is on the network with a fixed IP address and plugged into a brand new Netgear POE switch.

Any thoughts?

>ipconfig_cmd.exe list
[2024-04-02 18:40:19.219] [error] [win32_named_pipes_thread.h:106] Failed to open pipe. system:2
[2024-04-02 18:40:19.219] [error] [rpc_client.cpp:300] Failed to connect to NamedPipe-server at id=ic4-gentl-gev_service_pipe_1.0.0.554. Error: system:2
Failed to connect to service, ec: 'system:2'
R:\apps\tis\gige\bin>ping 192.168.68.49

Pinging 192.168.68.49 with 32 bytes of data:
Reply from 192.168.68.49: bytes=32 time<1ms TTL=255
Reply from 192.168.68.49: bytes=32 time<1ms TTL=255
Reply from 192.168.68.49: bytes=32 time<1ms TTL=255
Reply from 192.168.68.49: bytes=32 time<1ms TTL=255

Ping statistics for 192.168.68.49:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

The IC4 Service appears to be running:

Question re `framesQueued` and `popOutputBuffer`, and a suggestion ?

At first glance, it is not clear that the callback function framesQueued runs in a different thread. Might this be documented a little more clearly?

The next question is can you run capture loop in a single thread? The answer seems to be yes, but with the inefficiency of polling.

The example code below is just to illustrate the concept. what would be great here is to make popOutputBuffer() a blocking call when given an optional timeout - this would put the calling thread to sleep until either a frame is ready or the timeout expires. Similar to WaitObject() in the Windows API.

Just a thought. Thanks for listening.

	//
	class NullListener : public ic4::QueueSinkListener {
	public:
		// caution! this callback is in a different thread
		void framesQueued(ic4::QueueSink& qsink) override {
			// do nothing rather than popping a queued image
			// auto image = qsink.popOutputBuffer();
		}
	}

	// N.B. No error checking for brevity
	int main()
	{
		ic4::initLibrary();
		// 1 device. use it
		auto device_list = ic4::DeviceEnum::enumDevices();	
		ic4::DeviceInfo di = device_list[0]
		//
		ic4::Grabber grabber;
		grabber.deviceOpen(di.serial());
		// create a queue sink with the null listener. 
		NullListener nl;
		auto qsink = ic4::QueueSink::create(nl);
		// hook up grabber sink and run grabber.
		grabber.streamSetup(qsink, ic4::StreamSetupOption::AcquisitionStart);
		// loop - this polled model is operating in the *same* thread
		while (true) {
			// image d'tor will handle image recycling
                        // make popOutputBuffer a blocking call?
			auto image = qsink->popOutputBuffer(std::chrono::seconds(10));
			if (!image)
				continue;
			// do work with the image ...
		}
		grabber.streamStop();	
		grabber.deviceClose();
	}

theimagingsource / ic4-examples Goto Github PK

ic4-examples's Introduction

IC4 Examples

License

ic4-examples's People

Contributors

Stargazers

Watchers

Forkers

ic4-examples's Issues

Grabber does not stream live to a PySide6 embedded display

Querying supported `PixelFormat`? And issues arising

Question re IC4 properties dialog

stream_statistics frame missings ?

Questions?

python ic4 library Grabber.is_streaming property not working

Failure to connect to camera?

Question re `framesQueued` and `popOutputBuffer`, and a suggestion ?

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