region merge的用法和樣例：
例句
- Merge the selected region into one large cell.
將選中的區域合并為一個(gè)大單元格。 - 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。
