segmentation.py 文件源码

def compute_colseps_mconv(binary,scale=1.0):
    """Find column separators using a combination of morphological
    operations and convolution."""
    h,w = binary.shape
    smoothed = gaussian_filter(1.0*binary,(scale,scale*0.5))
    smoothed = uniform_filter(smoothed,(5.0*scale,1))
    thresh = (smoothed<amax(smoothed)*0.1)
    DSAVE("1thresh",thresh)
    blocks = morph.rb_closing(binary,(int(4*scale),int(4*scale)))
    DSAVE("2blocks",blocks)
    seps = minimum(blocks,thresh)
    seps = morph.select_regions(seps,sl.dim0,min=args['csminheight']*scale,nbest=args['maxcolseps'])
    DSAVE("3seps",seps)
    blocks = morph.r_dilation(blocks,(5,5))
    DSAVE("4blocks",blocks)
    seps = maximum(seps,1-blocks)
    DSAVE("5combo",seps)
    return seps