How to implement a general line detection algorithm in a LabVIEW vision FPGA?

[NAGINENI]

Dear all,

We are trying to implement a line detection algorithm in cRIO 9039, but the LabVIEW vision FPGA has limited functions. Can anyone please suggest some examples related to vision FPGA algorithms?

Thanks & regards
Sukumar

[NAGINENI]

Dear all,

In addition to the above question,

I have converted the input image into a binary image using the threshold function; after that, I need to convert the binary image to the 2-D array. If I have 2-D array values, I can do a simple least-square fitting to the image data, but no image to array conversion function is available in vision FPGA. Kindly suggest any approach to converting the image to 2-D array values in the vision FPGA program.

Thanks & regards
Sukumar

[rolfk]

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@NAGINENI wrote:

Dear all,

In addition to the above question,

I have converted the input image into a binary image using the threshold function; after that, I need to convert the binary image to the 2-D array. If I have 2-D array values, I can do a simple least-square fitting to the image data, but no image to array conversion function is available in vision FPGA. Kindly suggest any approach to converting the image to 2-D array values in the vision FPGA program.

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A 2D array is usually simply a 1D array of height * width values. So there is really nothing you need to do to treat a 1D data stream as a 2D image other than calculating the stride or byteWidth of the image and looping through the 1D data accordingly.