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Sharpness opencv cuda python

Hi all, I have tried adjusting sharpness with bilateral filter and addweighted methods. But it's not adjusting properly

import cv2
import numpy as np

img =  cv2.imread('test.png')
imgMat = cv2.cuda_GpuMat(img)

blur = cv2.cuda.bilateralFilter(imgMat,90,30,30)
sharp = cv2.cuda.addWeighted(imgMat, 0.3, blur,.5, 100)

sharpened =
cv2.imshow('Frame 1',img)
cv2.imshow('Frame 2',sharpened)

I'm using cuda so I can't use detailenhance method as well as gaussian blur also not working as expected.

Thanks in advance !!