dither

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Related to ditherer: course of action, jeopardise, dichotomised

dither

[′dith·ər]
(communications)
A technique for representing the entire gray scale of a picture by picture elements with only one of two levels (“white” and “black”), in which a multilevel input image signal is compared with a position-dependent set of thresholds, and picture elements are set to “white” only where the image input signal exceeds the threshold.
(control systems)
A force having a controlled amplitude and frequency, applied continuously to a device driven by a servomotor so that the device is constantly in small-amplitude motion and cannot stick at its null position. Also known as buzz.
References in periodicals archive ?
Not content with presiding over a catastrophic recession, a national debt akin to a tin-pot Third World dictatorship, a mismanaged illegal war, a drop in education standards and a collapse in national morale, the Ditherer managed to pull off an electoral performance that made Michael Foot look politically astute.
The pollsters' gap between Dave and the Ditherer will close - and Clegg will be further exposed as a leader lacking any practical solutions to the challenges presented by 13 years of grotesque Labour mismanagement of the domestic economy and international affairs.
The man who until only recently was seen as a dour, plodding, unsmiling ditherer has suddenly blossomed forth in the most unexpected way.
Which was a little harsh on Everton - and especially the ex-boss unfairly nicknamed Davey the ditherer.
Since then he has sunk rapidly through the stage of being the man who hates the City bankers but sells them our Royal Mail service, to the present dozy ditherer who can't decide how to confess to betraying his pledge to scrap student tuition fees.
The Ditherer of Downing Street has defended the decision to launch a cover-up of the circumstances surrounding Venables' new detention.
She added: "Rhodri Morgan seems to have caught the ditherer tendency from Gordon Brown.
e y d CURT R J CURT J There were lovely scenes in the boardroom, where Sugar fired arch ditherer Jason with such sensitivity I was half expecting him to tearfully tell him: "Look Jason, it's not you, it's me.
It emerged at the Iraq Inquiry that the Ditherer of Downing Street axed pounds 1 billion from the budget at the start of the operation to topple Saddam Hussein.
Now he risks developing a reputation as a ditherer, with rebels and loyalists alike losing their patience with the one-time heir apparent.
Try telling that to an inspector after queuing behind some ditherer wanting a cross-country economy deal with three changes of train.
If Brown wants to throw off his reputation as a ditherer, then this is certainly not the way to go about it.