import cv2 as cv import numpy as np def pyramid_demo(image): ##高斯金字塔 levels =3 temp = image.copy() pyramid_images = [] for i in range(levels): dst = cv.pyrDown(temp) ##下降图像金字塔 pyramid_images.append(dst) cv.imshow("pyramid_down_"+str(i),dst) temp = dst.copy() return pyramid_images def lapalian_demo(image): ##拉布拉斯金字塔 pyramid_images = pyramid_demo(image) level = len(pyramid_images) for i in range(level-1, -1, -1): if (i-1) < 0 : expand = cv.pyrUp(pyramid_images[i], dstsize=image.shape[:2]) lpls = cv.subtract(image, expand) cv.imshow("lapalian_down_" + str(i), lpls) else: expand = cv.pyrUp(pyramid_images[i], dstsize=pyramid_images[i-1].shape[:2]) lpls = cv.subtract(pyramid_images[i-1], expand) ##输出列矩阵 cv.imshow("lapalian_down_"+str(i), lpls) src = cv.imread("C:/Users/weiqiangwen/Desktop/sest/lena.png") # cv.namedWindow("input contours",cv.WINDOW_AUTOSIZE) cv.imshow("contours", src) #pyramid_demo(src) lapalian_demo(src) cv.waitKey(0) cv.destroyAllWindows()
第十三天 高斯金字塔拉普拉斯金字塔
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转载自blog.csdn.net/qq_32340685/article/details/83512145
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