Image enhancement processes consist of a collection of techniques that seek to
improve the visual appearance of an image or to convert the image to a form better
suited for analysis by a human or a machine. In an image enhancement system, there
is no conscious effort to improve the fid elity of a reproduced image with regard to
some ideal form of the image, as is done in image restoration. Actually, there is
some evidence to indicate that often a distorted image, for example, an image with
amplitude overshoot and undershoot about its object edges, is more subjectively
pleasing than a perfectly reproduced original.

圖像增強(qiáng)過(guò)程包括一系列的技術(shù)集合，尋求 提高圖像的視覺(jué)外觀，或?qū)D像轉(zhuǎn)換為一個(gè)更好的形式 分析適合由一個(gè)人或一臺(tái)機(jī)器。在圖像增強(qiáng)系統(tǒng)，有 沒(méi)有有意識(shí)地努力改善的一個(gè)方面富達(dá)轉(zhuǎn)載形象 一些形象的理想形式，因?yàn)楣ぷ魇窃趫D像復(fù)原。其實(shí)，有一些證據(jù)表明，往往是扭曲的形象，例如，一個(gè)圖像振幅過(guò)沖和下沖關(guān)于它的對(duì)象的邊緣，更是主觀比原來(lái)的完美再現(xiàn)賞心悅目。