Previous studies have predominantly focused on quantifying and accounting for exposure error
in single-pollutant models (Sarnat et al.
Nevertheless, we expect greater exposure error
for this pollutant than for the others.
5] was not a significant source of exposure error
for our study participants.
Continue data analyses for the investigation of exposure error
using air pollution data from 1985 to 2000 for the entire United States.
In this paper, we address the problem of exposure error
in observational ecologic time-series studies of air pollution and health.
Program faculty evaluated all participant image exposures for technique and exposure errors
, and the need for retakes.
11) to independent exposure errors
than to the shared exposure errors
of the primary analysis shown in Table 2.
Photos can often be refined and improved using Photoshop to address matters such as color fidelity, light-source problems, exposure errors
, dust-speck removal, tonal range, color profile selection, saturation, sharpness, removal of graininess, and the manipulation of the background, among other things.
These systems have very wide latitudes and the computer can correct for overexposure or underexposure, which is helpful, but it becomes harder to assess initial exposure errors
You can correct exposure errors
, crop pictures creatively and introduce all manner of clever effects at the press of a mouse button.
Additional features include grain and fading correction for added productivity and also Backlight correction -- a new function that lets users easily adjust the for exposure errors
from backlit subjects.