image - 计算温度图像在Matlab中的温度(calculate the temperature in a thermal image matlab)

Question

what I am trying to do is calculate the temperature of a selected area in an image my code:

(我想做的是用我的代码计算图像中选定区域的温度：)

M=imread('IR003609.BMP');

a = min(M(:));      % find the minimum temperature in the image
b = max(M(:));      % find the maximum temperature in the image

imshow(M,[a b]);    
 h = roipoly();     
  maskOfROI =h;      
  selectedValues = M(maskOfROI);      

averageTemperature =mean(selectedValues)  
maxTemperature = max(selectedValues)       
minTemperature = min(selectedValues)  

my image is this with the mouth area selected enter image description here

(我的图像是这个，选定的嘴巴区域在这里输入图像描述)

Then the values ??that he throws at me are these:

(然后他对我的价值观是：)

averageTemperature =

   64.0393


maxTemperature =

  uint8

   255


minTemperature =

  uint8

   1

Now my questions are, is the program throwing the correct temperature values ??(comparing the values ??seen in the image)?

(现在我的问题是，程序是否抛出正确的温度值（比较图像中看到的值）？)

or what values ??are emissivity?

(或发射率是什么值？)

if they are wrong values ??how could I solve it?

(如果它们是错误的价值观，我该如何解决呢？)

please help

(请帮忙)

  ask by Andres translate from so

Answer 1

等待大神答复