mylo0001

Okay, thank you very much for your reply, I will look it up!

Hello, 

I am using a Thermal Imaging Bricklet to create thermal images. My question is general, but I wanted to know on which formula the generated color palette is based and what's the logic behind it? 

For example in python the color palette creation looks as follows: 

for x in range(256):
        x /= 255.0
        palette.append(int(round(255*math.sqrt(x))))                  # RED
        palette.append(int(round(255*pow(x, 3))))                     # GREEN
        if math.sin(2 * math.pi * x) >= 0:
            palette.append(int(round(255*math.sin(2 * math.pi * x)))) # BLUE
        else:
            palette.append(0)

    return palette

Source: https://www.tinkerforge.com/en/doc/Software/Bricklets/ThermalImaging_Bricklet_Python.html 

Does any one know what's the principal behind this color palette?

Thank you!

Hey thank you very much for your reply.

Do you maybe know if there is a certain known algorithm to do this? And how much would the obtained image deviate from reality?

Hey,

I am using a Thermal Imaging Bricklet.

I'm currently trying to get the temperature and the contrast image at the same time. It says in the documentation that it's not possible (from what I understood)

I have tried using both  (TEMPERATURE IMAGE/ HIGH CONTRAST IMAGE) one after another, each time creating a new BrickletThermalImage but it didn't work.

I also tried to make a variation, as following:

if counter % 2 == 0: //Even Number ==>  get temperature image
    ti_temp = BrickletThermalImaging(UID, ipcon)
    ti_temp.set_image_transfer_config(ti_temp.IMAGE_TRANSFER_MANUAL_TEMPERATURE_IMAGE)
    ti_temp.set_spotmeter_config([0, 0, 79, 59])
    ti_temp.set_resolution(ti_temp.RESOLUTION_0_TO_655_KELVIN)
    temp_data = ti_temp.get_temperature_image()
else: //Odd number ==>  get temperature image
    ti_temp = BrickletThermalImaging(UID, ipcon)
    ti_temp.set_image_transfer_config(ti_temp.IMAGE_TRANSFER_MANUAL_HIGH_CONTRAST_IMAGE)
    image_data = ti_temp.get_high_contrast_image()

This also does not seem to work, I get the following results:

I manage to get the correct results for temperatures the first time, but afterwards it seems I only get the image data (or some values close to it) instead of the temperature data. If I leave the *else* part from the code, I always get the temperature data perfectly. 

Since I want to have the image and the corresponding temperatures to it at the same time, is there a way to do that? Or to achieve something closer to that?

Thank you very much!