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OpenCV之基本阈值操作
c++
python
python代码: import cv2 as cv import numpy as np # # THRESH_BINARY = 0 # THRESH_BINARY_INV = 1 # THRESH_TRUNC = 2 # THRESH_TOZERO = 3 # THRESH_TOZERO_INV = 4 # src = cv.imread("./test.png") cv.namedWindow("input", cv.WINDOW_AUTOSIZE) cv.imshow("input", src)
MachineLP
2021-08-13
447
0
OpenCV之二值图像介绍
c++
python
python代码: import cv2 as cv import numpy as np src = cv.imread("./test.png") cv.namedWindow("input", cv.WINDOW_AUTOSIZE) cv.imshow("input", src) T = 127 # 转换为灰度图像 gray = cv.cvtColor(src, cv.COLOR_BGR2GRAY) h, w = gray.shape T = cv.mean(gray)[0] print("cu
MachineLP
2021-08-13
251
0
OpenCV之图像模板匹配
c++
python
python代码: import cv2 as cv import numpy as np def template_demo(): src = cv.imread("./test.png") tpl = cv.imread("./test01.png") cv.imshow("input", src) cv.imshow("tpl", tpl) th, tw = tpl.shape[:2] result = cv.matchTemplate(src, t
MachineLP
2021-08-13
393
0
OpenCV之USM 锐化增强算法
c++
python
python代码: import cv2 as cv import numpy as np src = cv.imread("./test.png") cv.namedWindow("input", cv.WINDOW_AUTOSIZE) cv.imshow("input", src) # sigma = 5、15、25 blur_img = cv.GaussianBlur(src, (0, 0), 5) usm = cv.addWeighted(src, 1.5, blur_img, -0.5, 0)
MachineLP
2021-08-05
951
0
OpenCV之图像梯度 – 拉普拉斯算子(二阶导数算子)
c++
python
python代码: import cv2 as cv import numpy as np image = cv.imread("./test.png") cv.namedWindow("input", cv.WINDOW_AUTOSIZE) cv.imshow("input", image) h, w = image.shape[:2] src = cv.GaussianBlur(image, (0, 0), 1) dst = cv.Laplacian(src, cv.CV_32F, ksize=3,
MachineLP
2021-07-27
591
0
OpenCV之快速的图像边缘滤波算法
c++
python
python代码: import cv2 as cv import numpy as np src = cv.imread("./test.png") cv.namedWindow("input", cv.WINDOW_AUTOSIZE) cv.imshow("input", src) h, w = src.shape[:2] dst = cv.edgePreservingFilter(src, sigma_s=100, sigma_r=0.4, flags=cv.RECURS_FILTER) resu
MachineLP
2021-07-23
352
0
OpenCV之边缘保留滤波算法 – 均值迁移模糊(mean-shift blur)
c++
python
python代码: import cv2 as cv import numpy as np src = cv.imread("./test.png") cv.namedWindow("input", cv.WINDOW_AUTOSIZE) cv.imshow("input", src) h, w = src.shape[:2] dst = cv.pyrMeanShiftFiltering(src, 15, 30, termcrit=(cv.TERM_CRITERIA_MAX_ITER+cv.TERM_C
MachineLP
2021-07-20
566
0
OpenCV之边缘保留滤波算法 – 高斯双边模糊
c++
python
python代码: import cv2 as cv import numpy as np src = cv.imread("./test.png") cv.namedWindow("input", cv.WINDOW_AUTOSIZE) cv.imshow("input", src) h, w = src.shape[:2] dst = cv.bilateralFilter(src, 0, 100, 10) result = np.zeros([h, w*2, 3], dtype=src.dtype)
MachineLP
2021-07-20
435
0
OpenCV之图像均值与高斯模糊
c++
python
python代码: import cv2 as cv import numpy as np src = cv.imread("./test.png") cv.namedWindow("input", cv.WINDOW_AUTOSIZE) cv.imshow("input", src) dst1 = cv.blur(src, (5, 5)) dst2 = cv.GaussianBlur(src, (5, 5), sigmaX=15) dst3 = cv.GaussianBlur(src, (0, 0)
MachineLP
2021-07-20
541
0
OpenCV之图像像素读写
c++
python
python代码: import cv2 as cv src = cv.imread("./test.png") cv.namedWindow("input", cv.WINDOW_AUTOSIZE) cv.imshow("input", src) h, w, ch = src.shape print("h , w, ch", h, w, ch) for row in range(h): for col in range(w): b, g, r = src[row, col]
MachineLP
2021-07-19
204
0
OpenCV之图像创建与赋值
c++
python
python代码: import cv2 as cv import numpy as np src = cv.imread("./test.png") cv.namedWindow("input", cv.WINDOW_AUTOSIZE) cv.imshow("input", src) # 克隆图像 m1 = np.copy(src) # 赋值 m2 = src src[100:200,200:300,:] = 255 cv.imshow("m2",m2) m3 = np.zeros(src.sha
MachineLP
2021-07-19
435
0
OpenCV之图像像素算术操作(加减乘除)
c++
python
python代码: import cv2 as cv import numpy as np src1 = cv.imread("./test0.jpg") src2 = cv.imread("./test0.jpg") cv.imshow("input1", src1) cv.imshow("input2", src2) h, w, ch = src1.shape print("h , w, ch", h, w, ch) add_result = np.zeros(src1.shape, src1.dt
MachineLP
2021-07-19
292
0
OpenCV之图像伪彩色增强
c++
python
python代码: import cv2 as cv src = cv.imread("test1.png") cv.namedWindow("input", cv.WINDOW_AUTOSIZE) cv.imshow("input", src) dst = cv.applyColorMap(src, cv.COLORMAP_COOL) cv.imshow("output", dst) # 伪色彩 image = cv.imread("test0.jpg") color_image = cv.apply
MachineLP
2021-07-19
615
0
OpenCV之图像插值
c++
python
python代码: import cv2 as cv src = cv.imread("./test.png") cv.namedWindow("input", cv.WINDOW_AUTOSIZE) cv.imshow("input", src) h, w = src.shape[:2] print(h, w) dst = cv.resize(src, (w*2, h*2), fx=0.75, fy=0.75, interpolation=cv.INTER_NEAREST) cv.imshow("IN
MachineLP
2021-07-19
369
0
OpenCV之图像翻转
c++
python
python代码: import cv2 as cv import numpy as np src = cv.imread("./test.png") cv.namedWindow("input", cv.WINDOW_AUTOSIZE) cv.imshow("input", src) # X Flip 倒影 dst1 = cv.flip(src, 0); cv.imshow("x-flip", dst1); # Y Flip 镜像 dst2 = cv.flip(src, 1); cv.imshow(
MachineLP
2021-07-19
269
0
OpenCV之视频读写
c++
python
python代码: import cv2 as cv import numpy as np capture = cv.VideoCapture("./test.avi") # capture = cv.VideoCapture(0) 打开摄像头 height = capture.get(cv.CAP_PROP_FRAME_HEIGHT) width = capture.get(cv.CAP_PROP_FRAME_WIDTH) count = capture.get(cv.CAP_PROP_FRAME_C
MachineLP
2021-07-19
399
0
OpenCV之图像像素值统计
c++
python
python代码: import cv2 as cv import numpy as np src = cv.imread("./test.png", cv.IMREAD_GRAYSCALE) cv.namedWindow("input", cv.WINDOW_AUTOSIZE) cv.imshow("input", src) min, max, minLoc, maxLoc = cv.minMaxLoc(src) print("min: %.2f, max: %.2f"% (min, max)) pr
MachineLP
2021-07-19
599
0
OpenCV之色彩空间与色彩空间转换
c++
python
python代码: import cv2 as cv src = cv.imread("test.jpg") cv.namedWindow("rgb", cv.WINDOW_AUTOSIZE) cv.imshow("rgb", src) # RGB to HSV hsv = cv.cvtColor(src, cv.COLOR_BGR2HSV) cv.imshow("hsv", hsv) # RGB to YUV yuv = cv.cvtColor(src, cv.COLOR_BGR2YUV) cv.i
MachineLP
2021-07-19
385
0
OpenCV之图像通道分离合并
c++
python
python代码: import cv2 as cv src = cv.imread("./test.png") cv.namedWindow("input", cv.WINDOW_AUTOSIZE) cv.imshow("input", src) # 蓝色通道为零 mv = cv.split(src) mv[0][:, :] = 0 dst1 = cv.merge(mv) cv.imshow("output1", dst1) # 绿色通道为零 mv = cv.split(src) mv[1][:,
MachineLP
2021-07-19
271
0
ubuntu下make编译生成动态库,然后python调用cpp。
python
ubuntu
c++
摘要总结:本文介绍了如何在Ubuntu系统下使用g++编译出动态库,并使用Python调用cpp的函数。通过实例介绍了OpenTLD算法,并给出了具体的实现步骤和代码示例。
MachineLP
2018-01-09
1.5K
0
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