#ax.bar(pix_vals, channel_hist, zs=z,zdir='y',color=cs, alpha=0.618, edgecolor='none', lw=0) 用下面这行代码替换上面的代码即可解决 ax.plot3D(pix_vals, channel_hist, zs=z, zdir='y', color=c)

#ax.bar(pix_vals, channel_hist, zs=z,zdir='y',color=cs, alpha=0.618, edgecolor='none', lw=0) 用下面这行代码替换上面的代码即可解决 ax.plot3D(pix_vals, channel_hist, zs=z, zdir='y', color=c)