What's the difference between brightness and contrast?

Brightness


Definition:

  • (n.) The quality or state of being bright; splendor; luster; brilliancy; clearness.
  • (n.) Acuteness (of the faculties); sharpness 9wit.

Example Sentences:

  • (1) It is concluded that in the mouse model the ability of buspirone to reduce the aversive response to a brightly illuminated area may reflect an anxiolytic action, that the dorsal raphe nucleus may be an important locus of action, and that the effects of buspirone may reflect an interaction at 5-hydroxytryptamine receptors.
  • (2) They retained the ability to make this discrimination when the coloured stimuli were placed against a background bright enough to saturate the rods.3.
  • (3) There was good agreement between the survival of normally oxygenated cells in culture and bright cells from tumors and between hypoxic cells in culture and dim cells from tumors over a radiation dosage range of 2-5 Gray.
  • (4) Vital staining of neuroblastoma cells with acridine orange produces a bright intracellular red-orange fluorescence most probably due to the occurrence of RNA.
  • (5) Thereafter, donor type cells expressed an intermediate Thy 1.2 brightness; this population then persisted and surpassed the other subsets.
  • (6) It’s a bright, simple space with wooden tables and high stalls and offers tastings and beer-making workshops.
  • (7) The brightly lit ice palaces themselves are stunning, inside and out, and the sporting facilities have been rightly praised by almost all the athletes.
  • (8) The bright lines in the difference image represent the paths along which the filaments have moved and are measured using a crosshair cursor controlled by the mouse.
  • (9) Rats exposed to the bright-light condition suffered a pronounced loss of photoreceptor cells by 10 weeks, and an even greater cell loss by 17 weeks.
  • (10) Even Paul Bright had to get a private charity to fund half his work.
  • (11) There was a uniform decrease in brightness discrimination to either side of the foveal peak.
  • (12) Bright artificial light has been found effective in reducing winter depressive symptoms of Seasonal Affective Disorder, although conclusions about the true magnitude of treatment effect and importance of time of day of light exposure have been limited by methodologic problems.
  • (13) The frequencies of the various anaphase patterns of bright and dim centromere regions were binomially distributed, indicating random distribution of chromatids with respect to the age of their DNA templates.
  • (14) (2) Sequences of brightness steps of like polarity (either increments or decrements) elicit positive and negative motion-dependent response components when mimicking motion in the cell's preferred and null direction, respectively.
  • (15) "Most technologies have their bright and dark side," he replies, buoyantly.
  • (16) Ultrastructural cytochemistry with XRMA is limited by the need to use high-brightness electron sources.
  • (17) Kobani impressed on the Kurds that Erdoğan could not be trusted and that anti-Kurdish feeling continued to burn brightly in the Turkish state.
  • (18) The administration of the drug in Stage 1 improved the acquisition of the initial brightness discrimination and facilitated reversal learning independently of the drug administered in Stage 2.
  • (19) The highest expression was noted in a recurrent plexiform ameloblastoma in which almost 100% of the tumor cells were brightly reactive.
  • (20) Mercaptoacetate, injected in the middle of the bright phase, reduced the latency to eat but did not affect the duration of the subsequent IMI or cumulative food intake in LF rats.

Contrast


Definition:

  • (v. i.) To stand in opposition; to exhibit difference, unlikeness, or opposition of qualities.
  • (v. t.) To set in opposition, or over against, in order to show the differences between, or the comparative excellences and defects of; to compare by difference or contrariety of qualities; as, to contrast the present with the past.
  • (v. t.) To give greater effect to, as to a figure or other object, by putting it in some relation of opposition to another figure or object.
  • (n.) The act of contrasting, or the state of being contrasted; comparison by contrariety of qualities.
  • (n.) Opposition or dissimilitude of things or qualities; unlikeness, esp. as shown by juxtaposition or comparison.
  • (n.) The opposition of varied forms, colors, etc., which by such juxtaposition more vividly express each other's peculiarities.

Example Sentences:

  • (1) In contrast, DNA polymerase alpha, the enzyme involved in chromosomal DNA replication, was relatively insensitive to CA1.
  • (2) In contrast, arteries which were exposed to CO showed a higher uptake of cholesterol as compared to their corresponding control.
  • (3) In contrast, resting cells of strain CHA750 produced five times less IAA in a buffer (pH 6.0) containing 1 mM-L-tryptophan than did resting cells of the wild-type, illustrating the major contribution of TSO to IAA synthesis under these conditions.
  • (4) In contrast to previous reports, these tumours were more malignant than osteosarcomas and showed a five-year survival rate of only 4-2 per cent.
  • (5) Multiple overlapping thin 3D slab acquisition is presented as a magnitude contrast (time of flight) technique which combines advantages from multiple thin slice 2D and direct 3D volume acquisitions to obtain high-resolution cross-sectional images of vessel detail.
  • (6) Among the migrants from the regions with contrasting climatic conditions.
  • (7) In contrast, the effects of deltamethrin and cypermethrin promote transmitter release by a Na+ dependent process.
  • (8) In contrast to L2 and L3 in L1 the mid gut runs down in a straight line without any looping.
  • (9) The use of glucagon in double-contrast studies of the colon has been recommended for various reasons, one of which is to facilitate reflux of barium into the terminal ileum.
  • (10) To determine the accuracy of double-contrast arthrography in complete rotator cuff tears, we studied 805 patients thought to have a complete rotator cuff tear who had undergone double-contrast shoulder arthrography (DCSA) between 1978 and 1983.
  • (11) High levels of spirochetes also were detected in diseased sites with phase-contrast microscopy.
  • (12) TR was classified as follows: severe (massive systolic opacification and persistence of the microbubbles in the IVC for at least 20 seconds); moderate (moderate systolic opacification lasting less than 20 seconds); mild (slight systolic opacification lasting less than 10 seconds); insignificant TR (sporadic appearance of the contrast medium into the IVC).
  • (13) In contrast, HEL antigen requires metabolically active cells for both of these processes.
  • (14) In contrast, idiopathic GH deficient girls have an onset of puberty and PHV nearer to a normal chronological age and at an early bone age.
  • (15) In contrast, human breast milk contained substantially increased levels of immunoreactive PTHrP.
  • (16) In contrast, in those subjects with chronic non-migrainous headache, the administration of piribedil had no effect.
  • (17) In contrast with oligodendrocytes, [Cl-]i in astrocytes is significantly increased (from 20 to 40 mM) above the equilibrium distribution owing to the activity of an inward directed Cl- pump; this suggests a different mechanism of K+ uptake in these cells.
  • (18) In contrast, the ryanodine receptor is observed in dendritic shafts, but not in the spines.
  • (19) In contrast sham-hemodialysis in group CA and group PS, respectively, did not result in significant increases in amino acid efflux from the leg implying that the protein catabolic effect of blood membrane contact depends on the chemical properties of dialysis membranes.
  • (20) In contrast, the association of serum cholesterol with mortality due to causes other than coronary heart disease changed during follow-up (interaction of cholesterol with follow-up period: p = 0.004).