1. A method of tuning a noise level of an image sensor, the method comprising: applying at least one bilateral low pass filter to a signal from the image sensor to determine a set of frequency levels of an image; determining a target set of noise values for each frequency level of the set of frequency levels; determining a first set of noise values associated with the image based on denoising the signal; determining a second set of noise values associated with the image based on a difference between the target set of noise values and the first set of noise values; updating at least one coefficient of the at least one bilateral low pass filter based on a difference between the first and second sets of noise values; and adjusting the noise level of the image sensor via applying the at least one bilateral low pass filter with the updated coefficient.