afterimage


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Related to afterimage: positive afterimage

afterimage

 [af´ter-im″ij]
a visual impression persisting briefly after cessation of the stimuli causing the original image. In a positive afterimage the brights, darks, and colors remain unchanged; in a negative afterimage the brights and darks are reversed, and the colors are complementary.

af·ter·im·age

(af'ter-im'ij),
Persistence of a visual response after cessation of a stimulus.

afterimage

/af·ter·im·age/ (af´ter-im″aj) a retinal impression remaining after cessation of the stimulus causing it.

afterimage

(ăf′tər-ĭm′ĭj)
n.
A visual image that persists after the visual stimulus causing it has ceased to act. Also called photogene.

afterimage

a visual sensation that continues after the stimulus ends. The image may appear in colors complementary to those of the stimulus.

Afterimage

A visual sensation that persists briefly when the eyes are turned toward a homogenous neutral background after visual stimulation. Afterimage is due to photochemical activity of the retina and may be negative, positive, or complementary.

af·ter·im·age

, after-image (af'tĕr-im'ăj)
Persistence of a visual response after cessation of the stimulus.
References in periodicals archive ?
An afterimage, we learn on page 22, is the "visual image that lingers after the object itself disappears from the field of vision.
Now, the Japanese study has observed for the first time an equally strange illusion: The afterimage appears in a "complementary" shape-circles as hexagons, and vice-versa.
Afterimage GIS Co-Founder and CEO Paul Shanayda stated, "Our mapping service can accurately predict signal strength along with other metrics for households and businesses across the U.
That is, if the retina's local signs were shifting at the time that the flashes were being painted upon the retina, the resultant positive afterimage of each flash should appear to move in the direction of that shift, and they do not.
My thinking was that photography, in a largely nonliterate culture, would be an ideal medium for instructional materials," Duarte said, as she explained the genesis of her project in afterimage Magazine.
Closing our eyes after viewing a work reveals its afterimage.
Conventional noise reduction methods cannot improve image clarity enough as the noise reduction feature produces an afterimage as a side effect.
24 Mbps provides richly expressive afterimage with overwhelming image quality.
Afterimage of empire; photography in nineteenth-century India.
When the flash goes off during the advert it just seems like standard flash, but when the audience then close their eyes they are startled to see the clear afterimage of the BMW logo on their eyelids.
A slit lamp beam moved across the sclara is also often sufficient to bring into view an afterimage of the vascular tree.
Second, there is a visual afterimage of a certain kind which, after a considerable period of gazing at continuous motion, makes a stationary scene to appear to be moving, without any change of place.