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什麼是圖像?

圖像是可以以電子方式捕獲和存儲的物件、人物或場景的視覺表示。圖像可以是靜止的或移動的,並且可以顯示在各種設備上,包括計算機螢幕、電視和行動電話

圖像如何以電子方式存儲?

圖像以電子方式存儲為一系列像素,這些圖元是共同形成圖像的微小顏色點。每個圖元都被分配一個表示其顏色和亮度的值。

光柵圖像和向量圖像有什麼區別?

光柵圖像由像素組成,而向量圖像由定義圖像形狀和線條的數學方程組成。游柵圖像更適合照片和細節圖像,而向量圖像更適合簡單的設計和徽標。

什麼是縱橫比?

縱橫比是圖像寬度和高度之間的比例關係。常見的寬高比包括 4:3(標清電視)、16:9(高清電視)和 1:1(方形圖像)。

什麼是壓縮?

壓縮是在不損失太多質量的情況下減小圖像檔大小的過程。有兩種類型的壓縮:無損和有損。無損壓縮保留所有原始數據,而無損壓縮會丟棄一些數據以實現較小的檔大小什麼是檔案格式?

檔案格式是指存儲在計算機檔中的數據的結構和佈局。它決定了軟體程式如何組織、存儲和解釋內容。針對特定類型的數據(如文本、圖像、音訊和視頻)設計了不同的檔格式。檔的格式會影響其與不同程式和操作系統的相容性。一些廣泛使用的檔格式包括Microsoft Word 文件的.docx、圖像的.jpeg、音訊的.mp3和視頻的.mp4。

什麼是聯合攝影專家組 (JPEG)?

JPEG 是一種流行的圖像檔格式,它使用有損壓縮來實現較小的檔大小。JPEG 最適合照片和其他複雜圖像。

JPEG 是一種流行的圖像檔格式,它使用有損壓縮來實現較小的檔大小。JPEG 最適合照片和其他複雜圖像。

什麼是便攜式網路圖形 (PNG)?

PNG 是一種流行的圖像檔格式,它使用無損壓縮來實現小檔大小。PNG 最適合具有透明度或銳邊的圖像,例如徽標和圖示。

什麼是圖形交換格式 (GIF)?

GIF 是一種流行的圖像檔格式,它使用無損壓縮來實現小檔大小。GIF 最適合動畫圖像或顏色有限的圖像,例如徽標和圖示。

什麼是標記圖像檔格式 (TIFF)?

TIFF 是一種流行的圖像檔格式,支援無損壓縮並且可以包含多個圖層。TIFF最適合需要編輯或操作的高品質圖像。

什麼是顏色深度?

顏色深度是指可以在圖像中表示的顏色數量。顏色深度越高,圖像可以顯示的顏色就越多。常見的顏色深度包括 8 位(256 種顏色)、16 位(65,536 種顏色)和 24 位(1670 萬色)。

什麼是色彩空間?

色彩空間是指可以在圖像中表示的顏色範圍。常見的色彩空間包括標準紅色、綠色藍色 (sRGB)、Adobe RGB 和 ProPhoto RGB。顏色空間的選擇取決於圖像的預期用途。

什麼是每英寸點數 (DPI)?

DPI 是列印圖像時解析度的度量。DPI 越高,列印的圖像就越詳細。300 DPI 的解析度是大多數印刷材料的標準配置。

什麼是圖元化?

當圖像放大到超出其原始解析度時,就會發生圖元化,從而導致圖元變得可見並且圖像丟失細節。通過使用高解析度圖像或向量圖形可以避免圖元化。

什麼是浮浮浮浮水印?

浮浮浮水印是添加到圖像中以標識其來源或擁有權的半透明圖像或文本。可以使用各種軟體程式或在線工具將浮浮水印添加到圖像中,並有助於防止未經授權使用圖像。

什麼是圖像編輯軟體?

圖像編輯軟體是一種允許您編輯和操作數位圖像的軟體。圖像編輯軟體的例子包括Adobe Photoshop,GNU圖像處理程式(GIMP)和Paint Shop Pro。

什麼是縮圖?

縮圖是圖像的小型版本,用於表示全尺寸圖像。縮圖通常用於在網站上顯示圖庫中的多個圖像,或在按下圖像之前提供圖像預覽。

什麼是庫存圖片?

庫存圖片是可以許可並用於各種目的的預製圖片,例如行銷材料、網站和社交媒體帖子。庫存圖片可從各種網站獲得,可以免費或付費。

什麼是圖像識別?

圖像識別是計算機識別圖像中的物體、人物或場景的能力。該技術用於各個領域,例如安全,醫療保健和汽車行業。

什麼是深度學習?

深度學習是一種機器學習,涉及訓練人工神經網路以識別數據中的模式。深度學習通常用於圖像識別和自然語言處理。

什麼是增強現實?

增強現實是一種將數位內容疊加到現實世界的技術。該技術通常用於行動應用程式,並允許使用者在現實世界中與數位物件進行交互。

什麼是虛擬實境?

虛擬實境是一種使用計算機生成的圖像類比現實世界環境的技術。這項技術通常用於遊戲和娛樂,但也應用於醫療保健和教育。

什麼是數碼相機?

數碼相機是以數位方式捕獲和存儲圖像的相機。數碼相機已經取代了膠片相機,並因其方便、便攜和能夠在存儲卡上存儲許多圖像而變得流行起來。

什麼是解析度?

解析度是指構成螢幕上顯示的像素數。它通常以像素為單位表示為高度寬度,例如 1920x1080 或 1280x720。解析度越高,圖元越多,從而產生更清晰、更詳細的圖像。解析度在確定視覺內容(包括圖像、視頻和文本)的品質方面起著至關重要的作用。較高的解析度對於較大的屏幕特別有益,因為單個圖元在較低的解析度下可能會變得更加明顯。

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