Display numeric values instead of color

Hello everybody
I am new here so i am sorry if got it posted in the wrong corner…
My question is if there is a way to display the numeric vale of each pixel in my picture (similar to sacing the picture as text image, but as picture with correct distamces and positions). Is there a specific lut for that? Is there a method without using a macro?

What i want is what you see in this picture

There are several tools and macros available: