Key Code - 2023.1 English

Vitis Tutorials: Hardware Acceleration (XD099)

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2023.1 English

For this algorithm, we will continue to use of the Vitis Vision libraries.

As before, we will configure the library (in the hardware, via templates in our hardware source files) to process eight pixels per clock cycle. Functionally, our hardware algorithm is now equivalent to this in standard software OpenCV:

cv::resize(image, resize_ocv, cv::Size(out_width, out_height), 0, 0, CV_INTER_LINEAR);
cv::GaussianBlur(resize_ocv, result_ocv, cv::Size(7, 7), 3.0f, 3.0f, cv::BORDER_CONSTANT);

We are resizing as in Example 7, and as we mentioned are applying a 7 × 7 window to the Gaussian blur function. We have also (arbitrarily) selected σx = σy =3.0