一次作者在开发图像时候，对输入的图像没有打拍，输出给显示终端，时好时坏，或者图像颜色不正确，最终经过打拍解决了此问题。

//配置为16-Bit SDR ITU-R BT.656模式时pixel_data[23:16]为高阻。

always @(posedge pixel_clk ) begin
	pixel_data_d1<=pixel_data[15:0];
	pixel_data_d2<=pixel_data_d1;
end

always @(posedge pixel_clk ) begin
	hs_d1<=hs;
	hs_d2<=hs_d1;
end

always @(posedge pixel_clk ) begin
	vs_d1<=vs;
	vs_d2<=vs_d1;
end

always @(posedge pixel_clk) begin
	de_i_d1<=de_i;
	de_i_d2<=de_i_d1;
end


assign pixel_o[19:10]  	= 	{pixel_data_d2[15:8], 2'b00	}  	;//LUMA
assign pixel_o[9:0]  	= 	{pixel_data_d2[7:0] , 2'b00 }	;//CHROMA

颜色失真：

输入同步后的图片：颜色正常