how to convert temperature array to rgb array for opencv-CodePudding

i have an array (320x240) of temperature values and I want it to convert to rgb values that I specified for example:

blueRGBValue = (0,0,128)
temperatureArray =(24.532, 24.213, 24.1234, ...)
for i in range(len(temperatureArray)):
   if (temperatureArray[i] > 25 and temperatureArray[i]<=30):
   imageArray.append(blueRGBValue)
...

like this for all temperatureArray but i cannot assign rgb codes as tuples to imageArray. How can i do that? I imageArray should be initiate as numpy.zeros first to be ndarray

Thanks for advices.

CodePudding user response：

To store that rgb tuple into your np array you have to initialise your imageArray as follows:

imageArray = np.zeros((size), dtype=(float,3))

Note the dtype, you are storing 3 numbers of type float into your tuple. Then you can add your rgb values with imageArray[0] = rgb