gradient image的用法和樣例：
例句
- This algorithm is based on the watershed transform.First the gradient image is preprocessed according to the pixels intensity and spatial information.
該方法在分水嶺算法的基礎上，首先結合像素點(diǎn)亮度特征和空間分布特性應用自適應方法對梯度圖像進(jìn)行預處理。 - The pre-processing algorithm is made of image simplification and image morphologic gradient.The post-processing is mainly region merging.
預處理算法由圖像簡(jiǎn)化和簡(jiǎn)化后的求梯度圖像兩個(gè)部分組成，后處理主要是區域合并。
