def enhance_image(img,cmap):
    im=Image.fromarray(img)
    im=unsharp.usm(im,50,20,1.7,0.02)
    im=im.convert("L")
    im.putpalette(cmap)
    img = asarray(im)
    return img
def enhance_im(im,cmap):
    im=unsharp.usm(im,50,20,1.7,0.02)
    im=im.convert("L")
    im.putpalette(cmap)
    return im