desaturation
desaturation — 名詞
1. the process or act of making an image, video, or surface lose some or all of its
去飽和；降彩度
人為降低顏色或化學的飽和程度
the process or act of making an image, video, or surface lose some or all of its colour so that it appears closer to gray or black-and-white; also used in chemistry for the removal of hydrogen atoms from a compound to create double bonds
Yuki applied desaturation to the background of her wedding photo so the focus would stay on the couple.
Yuki 對婚紗照的背景做了去飽和處理，讓焦點停留在新人身上。
The video editor used careful desaturation on the flashback scenes to signal a shift into memory.
影片剪輯師對回憶場景做了仔細的去飽和處理，暗示畫面切換到記憶片段。
desaturation + [scene / image / photo] for artistic effect
In the chemistry lab, the research team achieved desaturation of the fatty acid molecules using a catalyst.
在化學實驗室裡，研究團隊使用催化劑實現了脂肪酸分子的去飽和。
The art director asked for slight desaturation of the logo for the print brochure.
藝術總監要求將標誌稍微去飽和，以配合印刷手冊的風格。
Kwame applied desaturation across the entire series of landscape photos to create a uniform vintage look.
Kwame 對整系列風景照進行了去飽和處理，營造出統一復古的視覺效果。
- colour draining
More informal and dramatic; 'draining the colour' implies a faster, more thorough removal than desaturation.
- fading
Describes a gradual, often unintended loss of colour over time, whereas desaturation is deliberate.
- bleaching
Uses chemicals or sunlight to whiten; broader than desaturation, which targets colour intensity without necessarily whitening.
- saturation
The direct opposite — increase in colour intensity or addition of double bonds to a compound.
文法句型
[degree adjective] desaturation of [object]
desaturation in [context / medium]
apply desaturation to [object]
用法筆記
In photography and design, desaturation is a deliberate creative step; software tools often provide a slider to control the degree. In chemistry, the term refers to a specific reaction that removes hydrogen. Use modifiers like 'slight', 'complete', or 'gradual' to describe the extent.
常見錯誤
2. the process of gradually losing colour intensity or vividness on its own, becomi
飽和度下降；褪色
顏色或彩度自然變淡的過程
the process of gradually losing colour intensity or vividness on its own, becoming duller or closer to gray; also used in chemistry for a reaction in which a compound forms double bonds by losing hydrogen atoms
The red pigment in the ancient tapestry showed significant desaturation after centuries of sunlight exposure.
古掛毯中的紅色顏料在數百年的日曬下出現了明顯的飽和度下降。
As the tropical fish swam deeper into the dark water, desaturation of its bright blue stripes became visible.
這條熱帶魚游到深色水域後，牠身上亮藍色條紋的彩度開始下降。
natural process: desaturation of [subject] under [condition]
Carmen noticed desaturation in the colour of her favourite woollen scarf after many washes.
Carmen 發現她最喜歡的羊毛圍巾洗過多次後顏色出現了飽和度下降。
Over time the orange paint on the old metal gate underwent desaturation until it looked almost beige.
舊鐵門上的橘色油漆隨著時間慢慢經歷了去飽和，最後幾乎變成米色。
The chemist observed desaturation of the liquid when it was exposed to ultraviolet light for several hours.
化學家觀察到該液體在紫外線照射數小時後發生了去飽和。
- fading
More common and general; any gradual loss of colour, while desaturation is more specific to a shift toward gray.
- washing out
Informal noun phrase describing colour becoming very pale or disappearing, often due to laundering or weather.
- dulling
Loss of brightness without necessarily turning gray; closer to 'becoming less vibrant'.
- deepening
Colour becomes richer and more intense, the opposite of losing saturation.
- brightening
Colour gains vividness and lightness, contrasting with desaturation's movement toward gray.
文法句型
desaturation of [subject] [under condition]
desaturation of [subject] over [time period]
用法筆記
Unlike sense 1, this sense describes an automatic or natural process rather than a deliberate action. The subject is usually a material, dye, pigment, or chemical compound. The process is typically gradual, so adjectives like 'slow' or 'gradual' and time phrases are common.