Sentence examples for mean luminance of from inspiring English sources

Among the other physical measures of movies that we have recorded and investigated are the mean luminance of each shot, the mean clutter in each shot, and the mean shot scale (see Cutting, 2016a, 2016b; Cutting & Armstrong, 2016, 2018).

where μ y, x) is the mean luminance of the pixel set {0 ≤ y ± ϵ < M, 0 ≤ x ± ϵ < N} and ϵ is set to the mean w JNB of all measured edge blocks.

The luminance masking refers to the dependency of the visual threshold and the mean luminance of the local image region while the contrast masking indicates that the threshold for a visual pattern would be reduced in the presence of other patterns.

where ⌊ ⌋ is the operator of rounding to the nearest smaller integer, α the parameter that is suggested a value of 0.649 [3], zY, mean is the LL subband constant corresponding to the mean luminance of the display (128 for 8-bit image), and zY λmax, θ, i', j') is the wavelet coefficient at location (i', j') in the subband with the highest level λmax and orientation θ of the luminance component Y.

Then, the mean luminance of the screen was changed abruptly.

Photopic vision was measured at a mean luminance of 70 cd/m2.

The mean luminance was 55 cd/m2 for a 1.0 c/d sine-wave grating of maximum contrast moving at 12 d/s, and the mean luminances of "black" and "white" (i.e., the maximum and minimum luminances), determined with a stationary 0.011 c/d grating at 100% contrast, were 3.98 cd/m2 and 104.2 cd/m2, respectively.

DC coefficients are excluded from embedding because of their visual relevance, since they represent the mean luminance value of a block.

In both experiments, the stimulus categories were equated with respect to mean luminance, SD of luminance distribution, and contrast density (RMS contrast), as assessed by means of MATLAB 7.0 (The MathWorks, Natick, MA).

After 500 ms, the counterphase time course of all elements reached mean luminance, and one of four conditions were initiated.

Numerous studies have characterized the functional effects of these mechanisms, demonstrating, for example, that a decrease in the mean luminance or contrast of the visual stimulus evokes a change in the dynamics of temporal receptive fields (RFs) that corresponds to a change from bandpass to lowpass tuning for temporal frequency [9], [10].