The phrase "average brightness of the" is correct and usable in written English.
It can be used in contexts where you are discussing the typical level of brightness in a particular setting, such as photography, lighting, or scientific measurements.
Example: "The average brightness of the room was measured to ensure optimal lighting for the presentation."
Alternatives: "mean brightness of the" or "typical brightness of the".
The amplitudes of flares in a unit of average brightness of the star range from 1.3×10−3 to 8.5×10−2, and the bolometric energies of flares range from 2×1032 to 8×1035 erg.
Photographs of the eruption center have been taken automatically by a time-lapse camera and a webcam installed by the HSRI and Industrial Research Institute IRII) of Kanagawa Prefecture. Figure 18e shows average brightness of the eruption center area from the frames.
The change in the radiances across the boundary is also shown as a percent contrast (difference of neighboring pixels divided by the average brightness of the neighbors at each pixel along the scan) and is a few percent across the boundary at all three wavelengths.
Observations were made of the change in the total average brightness of the Pluto Charon system during the eclipses.
The brightness of GFP complexes scales well with GFP subunits, as demonstrated by the fit of the average brightness of the monomeric, dimer, and trimeric controls (Figure 5).
The average brightness of the Ste50 high-order oligomer observed by 2dPCH was significantly reduced upon activation of the pheromone pathway (p = 0.02), while the average brightness of the oligomer upon activation of the osmotic stress pathway was not reduced at a statistically high confidence level (p = 0.24).
Here, a custom "contrast" filter is applied which uses a scaled ratio of the standard deviation to the average brightness of all of the pixels in a moving box (11 × 11 pixels) and is centered at each pixel within the region of the image away from the outer boundaries by half the dimension of the box.
For each scene, we first calculate the averaged brightness of the fish and construct 92 normal appearance models based on the NACA0012 model and Eq. (1), changing A and ϕ by filling in the form with the brightness.
Another form of animal camouflage uses bioluminescence to increase the average brightness of an animal to match the brightness of the background.
We found that the average brightness of dark current images depends on the total ionising dose that the camera is exposed to and the dose rate as well as on the applied exposure times.
This is consistent with change observed by 1dPCH as the decreased average brightness of Ste50-GFP upon activation of the signaling pathways.
