擅长:python、mysql、java
<p>我发现<code>scipy</code>可以直接将灰度png读取到数组中。在</p>
<pre><code>from scipy import misc
import numpy
R = misc.imread("r.png")
G = misc.imread("g.png")
B = misc.imread("b.png")
RGB = numpy.zeros((R.shape[0], R.shape[1], 3), "uint8")
RGB [:,:,0] = R
RGB [:,:,1] = G
RGB [:,:,2] = B
misc.imsave("rgb.png", RGB)
</code></pre>