Posts by pangfengjiang

The parameters of a color camera (line scan, model VL-8K7C-C80F-2 or other cameras) are 4tap mode and base mode. But the operator basergbcamera only supports 3tap. How can I handle this situation?

1：our card is microEnable 5 marathon VCL

2：yes ， i do it with va.

3：there are some carks in the project . one card is this (the other cards can control the brightness of the LED light without turning on RT microdisplay) , other cards are not(cannot control the brightness of the LED light.if no running display without turning on RT microdisplay)

Modification: the image acquisition software (RT microdisplay) was not started. no va.

Hardware: VCL acquisition card, line scan 8K camera (base mode)

Hello, I developed a function (stroboscopic function) to control LED lights and collect images on VA. I found that an acquisition card can also control the brightness and darkness of the LED without turning on VA. The other cards cannot control the brightness of the LED light. What is the reason for this and how to deal with it.

I have contacted the agent, and they can't solve this problem. They also need your help to solve it.

so please help to solve it.

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thanks your answer。 it can work。

Thank you for your answer

But this is not what I want. What I want is to receive three consecutive rows of data after detecting that the average value of a row is less than 20 (these rows are received directly without detecting the average value of the row). The average value of the fourth line in the detection line. If the detected row does not meet the average value less than 20, delete the current row, and then detect the average value of the next row.

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I want the following functions ， please help.

Image data input: 8K ，black and white ，line camera.

Signal input: front GPIO

To realize the function:

1: One frame is generated for every 1000 lines of images.

2: The front GPIO input signal is a periodic signal, and the frequency changes between 1k-100k. The period of the periodic signal needs to be detected. The period value of the signal is filled in the first 8 bytes of the first line of each frame image.

I want to realize the following functions. Please help me.

Image data input: 8K black and white line scan camera.

1: Detect the average gray value of each input line of image. If the average gray value is less than 20, go to step 2. If the average gray value is greater than 20, go to step 3

2: Receive three consecutive lines of image data (including this line of image data), and then go to step 1 (re detect the line gray value).

3: Delete this line of image, and then go to step 1 (re detect the gray value)

For example:

If the average gray value of the first line of image is detected to be 40 (greater than 20), the image data of this line will be deleted.

If it is detected that the average gray value of the image in the second row is 10 (less than 20), three rows of image data will be received continuously (receiving the second row, the third row, and the fourth row).

Detect the gray value of the fifth row of image data

Thank you for your reply, Iwill try。

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IT is very well , thanks

Now I use microEnable 5 marathon VCL to capture pictures (base mode, line scan mode, 8K width). This picture is very large, exceeding 512MB. This object has some rotation (the rotation angle is 10 degrees smaller). I now need to rotate it The object is squared on the picture. How to realize this function on VA. The main problem is that the picture is too big, and the DDR cache cannot hold such a big picture.

Thanks

How to implement the following functions.

That applet takes n signals to calculate the average value, and this n can be set by itself. If n is 20, the applet will not output the first signal until it receives 20 signals, and then each output signal is the average value calculated by taking down 20 signals.

How to implement the following functions.

That applet takes n signals to calculate the average value, and this n can be set by itself. If n is 20, the applet will not output the first signal until it receives 20 signals, and then each output signal is the average value calculated by taking down 20 signals.