duochrome

The duochrome test, a test used by opticians to refine the correction of refractive error, in which the subject is asked to compare images presented with red and green backgrounds.

When using the duochrome, there may not be an exact endpoint because the chances of the spectacle refraction falling into a 0.25 DS endpoint are fairly remote.

The duochrome should be used as the endpoint procedure for the initial MPMVA .

An image composed of varying shades (grayscale) of two colors.

Where a color original such as a transparency, color print, or color artwork is furnished, additional impact and interest can be obtained with the duochrome.

[…] used two tints for his underpaintings, a duochrome in effect, probably a cool grey tint for the shadows and a golden buff one for everything in sunlight.

A piece of pottery decorated in two colors.

Jugs 9-10 and 15 are obviously the last vestiges of earlier duochrome ware.

Duochrome consists predominantly of red or brown on brown, buff, or cream.

A color scheme consisting of only two hues.

All was immaculately in keeping, a duochrome of terracotta and brick, with niches for Elizabeth II matching those of her great-great grandparents, Victoria and Albert, on the North Porch.

A dank duochrome prevailed, matte silver and green-black, curled fog strangling the pines.

Fabric that shifts between two colors, depending on the angle of light, also, by extension, something made with such fabric.

So she'd worn one of her own creations, a duochrome that shifted from turquoise to a rich blue depending on how the light hit it.

Duochrome flecks sparkled yellow on the plane's dark seats.

Pertaining to the red and green colors of the duochrome test.

Cockerham claims that there are a number of advantages with his duochrome fixation attachment over the ordinary illuminated target.

the operator begins at the centre, chooses a colour, follows the colour out to duochrome balance, then proceeds to the periphery.

Composed of two colors.

We were boldly duochrome in our bear-up black sweatpants and white sleeveless T-shirts with crosses and religious medals dangling from our necks, sort of a City Ballet meets St. Mark's Place kind of look.

Duochrome monotony of gray weather recalling Cage's Four Minutes Thirty-Three Seconds of silence, making Julian hungry to see something with a feeling attached.

In two colors.

Mark showed his father how you could push down two of the coloured ballpoints at once, and so write duochrome.