python - 如何在像素输出中查找区域

Question

我需要以像素为单位输出 binary_mole 的区域。

mole_1 = mpimg.imread('mole_1.png')
gray_mole = rgb2grey(mole_1)
threshold = skimage.filters.threshold_otsu(gray_mole)
binary_mole = (gray_mole < threshold)

我试图以像素为单位查找区域如下

trys = np.sum(binary_mole == 255)
print('number of white pixels = ' , trys)

binary_mole 看起来像

我该如何解决或解决这个问题？

标签： pythonpixelarea

Answer 1

有一个名为 regionprops 的内置函数，它有许多测量值。

import skimage.measure as meas
binary_label = meas.label(binary_mole)
measurements = meas.regionpros(binary_label)

area = measurements[0]['area']