pynq_composable.libs Module

The pynq_composable.libs module provides the drivers to control the vision IP that are available in the composable video pipeline.

class pynq_composable.libs.CornerHarris(description)

Bases: pynq_composable.libs.VitisVisionIP

Corner Detector, using Harris algorithm IP, python driver

bindto = ['xilinx.com:hls:cornerHarris_accel:1.0']

property k

Harris detector parameter

start()

Populate the image resolution and start the IP

property threshold

class pynq_composable.libs.DuplicateIP(description)

Bases: pynq_composable.libs.VitisVisionIP

DuplicateIP driver

bindto = ['xilinx.com:hls:duplicate_accel:1.0']

class pynq_composable.libs.Fast(description)

Bases: pynq_composable.libs.VitisVisionIP

Corner Detect, using Fast algorithm IP, python driver

bindto = ['xilinx.com:hls:fast_accel:1.0']

start()

Populate the image resolution and start the IP

property threshold

class pynq_composable.libs.Filter2d(description)

Bases: pynq_composable.libs.VitisVisionIP

Filter 2D Kernel

bindto = ['xilinx.com:hls:filter2d_accel:1.0']

property kernel_type

property sigma

start()

Populate the image resolution and start the IP

class pynq_composable.libs.GaussianBlur(description)

Bases: pynq_composable.libs.VitisVisionIP

bindto = ['xilinx.com:hls:GaussianBlur_accel:1.0']

start()

Populate the image resolution and start the IP

class pynq_composable.libs.Morphological(description)

Bases: pynq_composable.libs.VitisVisionIP

Erode and dilate

bindto = ['xilinx.com:hls:dilate_accel:1.0', 'xilinx.com:hls:erode_accel:1.0']

populateKernel()

start()

Populate the image resolution and start the IP

class pynq_composable.libs.MultiplyIP(description)

Bases: pynq_composable.libs.VitisVisionIP

Pixel-wise multiplication

bindto = ['xilinx.com:hls:multiply_accel:1.0']

property scale

Scale value

Each pixel is multiplied by this scale value

start()

Populate the image resolution and start the IP

class pynq_composable.libs.PixelLut(description)

Bases: pynq_composable.libs.VitisVisionIP

Lut IP

bindto = ['xilinx.com:hls:LUT_accel:1.0']

property kernel_type

property lut

start()

Populate the image resolution and start the IP

property threshold

Set an retrieve threshold ndarray

The first index indicates

0: lower threshold 1: upper threshold

The second index indicates the channel The third index indicates the value

class pynq_composable.libs.VitisVisionIP(description)

Bases: pynq.overlay.DefaultIP

Generic Driver for Vitis Vision IP cores

bindto = ['xilinx.com:hls:dma2video_accel:1.0', 'xilinx.com:hls:video2dma_accel:1.0', 'xilinx.com:hls:rgb2gray_accel:1.0', 'xilinx.com:hls:medianBlur_accel:1.0', 'xilinx.com:hls:gray2rgb_accel:1.0', 'xilinx.com:hls:pyrUp_accel:1.0', 'xilinx.com:hls:subtract_accel:1.0', 'xilinx.com:hls:rgb2hsv_accel:1.0', 'xilinx.com:hls:rgb2xyz_accel:1.0', 'xilinx.com:hls:absdiff_accel:1.0', 'xilinx.com:hls:add_accel:1.0', 'xilinx.com:hls:bitwise_and_accel:1.0', 'xilinx.com:hls:bitwise_not_accel:1.0', 'xilinx.com:hls:bitwise_or_accel:1.0', 'xilinx.com:hls:bitwise_xor_accel:1.0']

property cols: int

Image width

property rows: int

Image height

start()

Populate the image resolution and start the IP

status()

stop()

Stop the IP

class pynq_composable.libs.colorThreshold(description)

Bases: pynq_composable.libs.VitisVisionIP

Color Thresholding IP driver lower_thr and upper_thr are a numpy array, each row corresponds to a channel in the pixel. For RGB, row 0 is R, row 1 is G and row 2 is B For HSV, row 0 is H, row 1 is S and row 2 is V For XYZ, row 0 is X, row 1 is Y and row 2 is Z

bindto = ['xilinx.com:hls:colorthresholding_accel:1.0']

property lower_thr

Set and retrieve lower threshold configuration

start()

Populate the image resolution and start the IP

property upper_thr

Set and retrieve lower threshold configuration

class pynq_composable.libs.inRange(description)

Bases: pynq_composable.libs.VitisVisionIP

bindto = ['xilinx.com:hls:inRange_accel:1.0']

populateThreshold()

start()

Populate the image resolution and start the IP

class pynq_composable.libs.xvF2d(value)

Bases: enum.Enum

Supported filter2D kernels

edge = 3

edge_x = 1

edge_y = 2

gaussian_blur = 11

identity = 0

median_blur = 12

prewitt_x = 9

prewitt_y = 10

scharr_x = 7

scharr_y = 8

sharpen = 4

sobel_x = 5

sobel_y = 6

class pynq_composable.libs.xvLut(value)

Bases: enum.Enum

Supported LUT kernels

binary_threshold = 2

group_bin = 3

identity = 0

negative = 1

offset = 4

random = 6

threshold = 5