Sentence examples for illumination contrast from inspiring English sources

More-recent developments include asymmetrical illumination contrast and modulation contrast, which exploit offset or oblique illumination.

Hence, the focuses of multi-modal image matching reside in illumination (contrast and brightness) invariant representations, common structure extraction from varying conditions and robust similarity measure.

In each z plane, 15 images were acquired with a rotating illumination pattern (5 phases and 3 angles) in two color channels (488 nm and 561 nm) independently, using the following parameters: structured illumination contrast = 2.0; apodization filter = 1.0; width of 3D-SIM filter = 0.20.

Optimum image illumination, contrast, and color balance for the digital images were achieved by a standardized procedure at the RC [3] where the luminance histograms for each of the red/green/blue (RGB) color channels were analyzed and manually adjusted to enhance color contrast and standardize illumination.

They were asked to evaluate the quality of each of the ten reconstructed RGB images using a five-step psychometric (Likert-type) scale from 1 (completely disagree) to 5 (completely agree), for each of the following parameters: uniformity of illumination, contrast, sharpness, geometric distortion, visibility of fine spatial details, and colour fidelity.

Data were analysed using a repeated measures ANOVA with a single fixed factor: treatment (i.e. illumination, contrast, or viewing distance), and a random factor: Bird ID. α was set at 0.05 for all tests.

Topics include microscope optics, Koehler illumination, contrast-generating mechanisms (bright/dark field, fluorescence, phase contrast, differential interference contrast), and resolution limits.

Photographs that seem to celebrate soft technical effects within the context of their story provide another dimension and suggest that Mr. Leipzig has enjoyed the challenge of creating the nuances in light and tone required by illumination contrasts inside a theater, hazy rain covering the city, mist produced by New Jersey smokestacks and a blurring sandstorm in the Sudan.

However, this modality suffers from common image acquisition problems, such as change in illumination, poor contrast, noise and pose variation.

Depending on illumination, resolution, contrast and orientation the outer contour and tissues appear highly variable.

The enhancement process aims at increasing the quality of the input images in terms of illumination and contrast.