python实现图片切割

        栅格图片以矩阵的形式存储，对其实现切割实际上就是将整个矩阵分成一块一块的小矩阵，图片切割还是比较简单的，以下是python代码：

                               

 

def cutImage(Image:np.array,savePath:str,patch_size:tuple):
    '''
    :param Image: 要切割的图像
    :param savePath: 保存到的文件夹
    :param patch_size: 切割后小块的尺寸，应该成传入一个二维元组
    :return: None
    '''

    Shape=Image.shape
    print(Shape)
    if len(Shape)==2:
        rows = [patch_size[0] * i for i in range(int(Shape[0] / patch_size[0]))]
        cols = [patch_size[1] * i for i in range(int(Shape[1] / patch_size[1]))]
        i = 1
        for row in rows:
            for col in cols:
                tiff.imsave(savePath + "/part" + str(i)+".tif", Image[row:row+patch_size[0],col:col+patch_size[1]])
                i=i+1

    elif len(Shape)==3:
        rows = [patch_size[0] * i for i in range(int(Shape[1] / patch_size[0]))]
        cols = [patch_size[1] * i for i in range(int(Shape[2] / patch_size[1]))]
        i = 1
        for row in rows:
            for col in cols:
                tiff.imsave(savePath + "/part" + str(i)+".tif", Image[:,row:row + patch_size[0], col:col + patch_size[1]])
                i+=1