接著上一篇OpenCV圖像處理基礎1繼續說。

圖像閾值處理

1、簡單閾值處理

ret, thresholded_image = cv2.threshold(image, thresh, maxval, cv2.THRESH_BINARY)

thresh 是閾值，maxval 是最大值。

2、自適應閾值處理

thresholded_image = cv2.adaptiveThreshold(image, maxval, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY, block_size, C)

3、Otsu’s 二值化

ret, thresholded_image = cv2.threshold(image, 0, 255, cv2.THRESH_BINARY + cv2.THRESH_OTSU)

圖像平滑處理

1、均值濾波

blurred_image = cv2.blur(image, (kernel_size, kernel_size))

2、高斯濾波

blurred_image = cv2