OpenCV形态学梯度

短命女 2023-01-10 10:21 173阅读 0赞

#形态学梯度，这是图像膨胀和腐蚀之间的区别，结果将看起来像对象的轮廓
    import cv2 as cv
    import numpy as np
    import matplotlib.pyplot as plt
    img = cv.imread('test9.jpg')
    img = cv.cvtColor(img,cv.COLOR_BGR2RGB)
    kernel = np.ones((3,3),np.uint8)
    gradient = cv.morphologyEx(img,cv.COLOR_BGR2RGB,kernel)
    plt.subplot(121),plt.imshow(img),plt.title('Original')
    plt.xticks([]),plt.yticks([])
    plt.subplot(122),plt.imshow(gradient),plt.title('gradient')
    plt.xticks([]),plt.yticks([])
    plt.show()

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dpbmdneW4_size_16_color_FFFFFF_t_70][]

test9.jpg如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dpbmdneW4_size_16_color_FFFFFF_t_70 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dpbmdneW4_size_16_color_FFFFFF_t_70 2][]

test3.jpg如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dpbmdneW4_size_16_color_FFFFFF_t_70 3][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dpbmdneW4_size_16_color_FFFFFF_t_70]: /images/20221119/73475b95a8164f26b7f556921c4960c8.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dpbmdneW4_size_16_color_FFFFFF_t_70 1]: /images/20221119/0905d91d4630443090d4050c2339661d.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dpbmdneW4_size_16_color_FFFFFF_t_70 2]: /images/20221119/4b65049b85b54653ab2457dafee7ecb7.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dpbmdneW4_size_16_color_FFFFFF_t_70 3]: /images/20221119/76096e36453d474a9e177844e9863865.png