python 生成高斯斑块

矩形roi填充斑块

import cv2
import numpy as np
img = np.zeros([200,200,3],np.uint8)
img[:,:,:]=255

img[50:100,50:100]=[0,0,0]
cv2.imshow("asdf",img)


img_ = cv2.GaussianBlur(img,(51,51),0)
cv2.imshow('img_',img_)

cv2.waitKey()

圆形roi填充斑块

import cv2
import numpy as np
img = np.zeros([200,200,3],np.uint8)
img[:,:,:]=255

img = cv2.circle(img, (100, 100), 50, (0, 0, 0), -1)
# img = cv2.circle(img, (50, 50), 50, (255, 0, 0), 1, 8, 0)  # 画圆

# img[50:100,50:100]=[0,0,0]
cv2.imshow("img",img)


img_ = cv2.GaussianBlur(img,(51,51),0)
cv2.imshow('result',img_)

cv2.waitKey()

椭圆roi

import cv2
import numpy as np
img = np.zeros([200,200,3],np.uint8)
img[:,:,:]=255

img=cv2.ellipse(img, (100,100), (75, 50), 0, 0, 360, (0, 0, 0), -1)
# img = cv2.circle(img, (100, 100), 50, (0, 0, 0), -1)
# img = cv2.circle(img, (50, 50), 50, (255, 0, 0), 1, 8, 0)  # 画圆

# img[50:100,50:100]=[0,0,0]
cv2.imshow("img",img)


img_ = cv2.GaussianBlur(img,(51,51),0)
cv2.imshow('result',img_)

cv2.waitKey()

生成椭圆高斯斑块,然后贴到另一张图上面:

import cv2
import numpy as np
img = np.zeros([100,100,3],np.uint8)
img[:,:,:]=255

img=cv2.ellipse(img, (50,50), (30,20), 0, 0, 360, (0, 0, 0), -1)
# img = cv2.circle(img, (100, 100), 50, (0, 0, 0), -1)

img_ = cv2.GaussianBlur(img,(41,41),0)

# cv2.imwrite( "result.png", img_)

width=70
height=50

img_=img_[(50-height//2):(50+height//2),(50-width//2):(50+width//2)]
cv2.imshow('img_',img_)
dst = cv2.imread("./1-2.png")
dst=cv2.resize(dst,(500,500))

cv2.imshow('dst_o',dst)

dst[300:300+height,200:200+width]=cv2.addWeighted(dst[300:300+height,200:200+width],0.3,img_,0.8,0)

cv2.imshow('result',dst)
cv2.waitKey()

python 生成高斯斑块_第1张图片

 

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