编码实现用显示器测量人眼视觉的亮度最小可见差

1、先将数据存在excel中，存为data厂再通过matlab将data中的数据读 出来，用这些数据进行进行绘图操作：num=xlsread('data')num =00.38000.03120.08205.00000.41000.03430.083610.00000.55000.04050.073720.00001.35000.06180.045830.00003.08000.08750.028440.00004.99000.12130.024350.00007.20000.15120.021060.00009.36000.15070.015970.000011.89000.20

2、060.016980.000015.00000.26210.017590.000018.70000.30540.0163100.000022.60000.38230.0169110.000027.10000.46320.0171120.000032.30000.56620.0175130.000038.10000.69490.0182140.000044.70000.78860.0176150.000052.10000.93520.0180160.000060.60000.99260.0164170.000069.50001.09560.0158180.000079.50001.32020.0

3、166190.000090.80001.52570.0168200.0000101.40001.76470.0174210.0000113.60001.87350.0165220.0000127.90002.14740.0168230.0000142.30002.51470.0177240.0000161.60003.17940.0197250.0000184.60004.06880.0220»yl=num(:,3)；»xl=num(:,2);>>plot(xby*)»title('图1人眼最小可觉差与背景亮度的关系j»ylabel(

4、' a l/(cd ma2)1)»xlabel('l/(cd ma2)')运行如下：图1人眼最小可觉差与背景亮度的关系num=xlsread('data')num =00.38000.03120.08205.00000.41000.03430.083610.00000.55000.04050.073720.00001.35000.06180.045830.00003.08000.08750.028440.00004.99000.12130.024350.00007.20000.15120.021060.00009.36000.15070.015

5、970.000011.89000.20060.016980.000015.00000.26210.017590.000018.70000.30540.0163100.000022.60000.38230.0169110.000027.10000.46320.0171120.000032.30000.56620.0175130.000038.10000.69490.0182140.000044.70000.78860.0176150.000052.10000.93520.0180160.000060.60000.99260.0164170.000069.50001.09560.0158180.000079.50001.32020.0166190.000090.80001.52570.0168200.0000101.40001.76470.0174210.0000113.60001.87350.0165220.0000127.90002.14740.0168230.0000142.30002.51470.0177240.0000161.60003.17940.0197250.0000184.60004.06880.0220» y2=num(:,4);» x2=num(:?2);>>plot(x2,y2 八 *)