[{"data":1,"prerenderedAt":651},["ShallowReactive",2],{"page-zhHant-\u002Fformat-guide":3},{"id":4,"title":5,"body":6,"description":558,"draft":642,"extension":643,"hero":644,"meta":645,"navigation":646,"path":647,"seo":648,"stem":649,"tags":644,"updatedAt":644,"__hash__":650},"content_zhHant\u002Fformat-guide.md","支援的格式指南",{"type":7,"value":8,"toc":624},"minimark",[9,12,16,20,156,159,162,167,170,174,189,193,213,217,220,225,245,249,263,267,270,274,294,298,312,316,319,323,342,346,360,364,367,371,397,401,415,418,594],[10,11,5],"h1",{"id":5},[13,14,15],"h2",{"id":15},"支援的輸入格式",[17,18,19],"p",{},"Drop Compress Image 支援以下輸入影像格式：",[21,22,23,32,38,44,50,56,62,68,78,84,90,96,102,108,117,123,150],"ul",{},[24,25,26,27,31],"li",{},"AV1 Image Format (",[28,29,30],"code",{},"*.avif",")",[24,33,34,35,31],{},"Microsoft Windows Bitmap Image (",[28,36,37],{},"*.bmp",[24,39,40,41,31],{},"Direct Draw Surface (",[28,42,43],{},"*.dds",[24,45,46,47,31],{},"Farbfeld (",[28,48,49],{},"*.ff",[24,51,52,53,31],{},"Graphics Interchange Format (",[28,54,55],{},"*.gif",[24,57,58,59,31],{},"Radiance High Dynamic Range image file (",[28,60,61],{},"*.hdr",[24,63,64,65,31],{},"Computer icon encoded in ICO file format (",[28,66,67],{},"*.ico",[24,69,70,71,74,75,31],{},"Joint Photographic Experts Group (",[28,72,73],{},"*.jpg",", ",[28,76,77],{},"*.jpeg",[24,79,80,81,31],{},"OpenEXR image (",[28,82,83],{},"*.exr",[24,85,86,87,31],{},"Portable Network Graphic (",[28,88,89],{},"*.png",[24,91,92,93,31],{},"Portable Any Map (",[28,94,95],{},"*.pnm",[24,97,98,99,31],{},"Quite OK Image Format (",[28,100,101],{},"*.qoi",[24,103,104,105,31],{},"Truevision Graphics Adapter (",[28,106,107],{},"*.tga",[24,109,110,111,74,114,31],{},"Tagged Image File Format (",[28,112,113],{},"*.tif",[28,115,116],{},"*.tiff",[24,118,119,120,31],{},"WebP (",[28,121,122],{},"*.webp",[24,124,125,126,74,129,74,132,74,135,74,138,74,141,74,144,74,147,31],{},"JPEG 2000 (",[28,127,128],{},"*.jp2",[28,130,131],{},"*.j2c",[28,133,134],{},"*.j2k",[28,136,137],{},"*.jpf",[28,139,140],{},"*.jpx",[28,142,143],{},"*.jpm",[28,145,146],{},"*.mj2",[28,148,149],{},"*.jph",[24,151,152,153,31],{},"JPEG XL (",[28,154,155],{},"*.jxl",[13,157,158],{"id":158},"支援的輸出格式",[17,160,161],{},"本節介紹此程式支援的輸出格式。",[163,164,166],"h3",{"id":165},"pngoxipng","PNG（Oxipng）",[17,168,169],{},"PNG（Portable Network Graphic）是一種允許您保存圖像而不會損失圖像品質的格式。\n此程式使用 Zopfli，這是 Google 開發的一種特殊壓縮技術，可使 PNG 映像“更小”，但處理時間會更長。",[163,171,173],{"id":172},"png-功能","PNG 功能",[21,175,176,183],{},[24,177,178,182],{},[179,180,181],"strong",{},"無損壓縮","：無論保存多少次，原始影像品質都不會降低。",[24,184,185,188],{},[179,186,187],{},"透明度 (Alpha)","：允許使用透明背景。",[163,190,192],{"id":191},"png-使用場景","PNG 使用場景",[21,194,195,201,207],{},[24,196,197,200],{},[179,198,199],{},"標誌、圖示和圖表","：邊框清晰、顏色較少的圖像，或需要使用透明背景的圖像。",[24,202,203,206],{},[179,204,205],{},"網站素材","：用於避免影像品質下降。",[24,208,209,212],{},[179,210,211],{},"保留原始資料","：可能重複編輯的影像。",[163,214,216],{"id":215},"jpegmozjpeg-壓縮","JPEG（MozJPEG 壓縮）",[17,218,219],{},"JPEG（Joint Photographic Experts Group）是一種主要用於照片的格式，強調「即使犧牲一些影像質量，也要保持小尺寸」。\n本程式中使用的 MozJPEG 是由 Mozilla 開發的技術，旨在進一步減小 JPEG 影像大小，同時最大限度地減少視覺品質下降。",[221,222,224],"h4",{"id":223},"jpeg-的特性","JPEG 的特性",[21,226,227,233,239],{},[24,228,229,232],{},[179,230,231],{},"有損壓縮","：為了減少檔案大小，會刪除人眼難以察覺的訊息，從而略微降低影像品質（壓縮率越高，品質下降越明顯）。",[24,234,235,238],{},[179,236,237],{},"高壓縮率","：可以將包含多種色彩的複雜影像（例如照片）壓縮到極小的尺寸。",[24,240,241,244],{},[179,242,243],{},"jpegli","：與傳統 JPEG 相比，在相同檔案大小下，它可以實現更高的影像質量，甚至可以在相同影像質量下實現較小的檔案大小。它使用與 JPEG XL 相同的技術，可實現高品質壓縮。",[221,246,248],{"id":247},"jpeg-使用場景","JPEG 使用場景",[21,250,251,257],{},[24,252,253,256],{},[179,254,255],{},"普通照片","：包含多種色彩和漸變的圖像，例如風景和人像。",[24,258,259,262],{},[179,260,261],{},"網站上的大型照片","：當檔案大小是加快載入速度的首要考慮因素時。",[163,264,266],{"id":265},"webp","WebP",[17,268,269],{},"WebP 是由 Google 開發的一種全新圖片格式，它融合了 JPEG 和 PNG 的優點。",[221,271,273],{"id":272},"webp-特點","WebP 特點",[21,275,276,282,288],{},[24,277,278,281],{},[179,279,280],{},"高壓縮率和高畫質","：在保持與 JPEG 相同的壓縮率的同時，保持比 PNG 更高的畫質。",[24,283,284,287],{},[179,285,286],{},"有損\u002F無損支援","：支援有損壓縮（用於照片）和無損壓縮（用於插圖）。",[24,289,290,293],{},[179,291,292],{},"透明度 (Alpha) 和動畫","：支援類似 PNG 的背景透明度和類似 GIF 的動畫（比 GIF 畫質更高、檔案更小）。",[221,295,297],{"id":296},"webp-使用場景","WebP 使用場景",[21,299,300,306],{},[24,301,302,305],{},[179,303,304],{},"通用網站圖片","：使用此格式替換大多數圖片，包括照片、圖標和動畫，以提高網站速度。",[24,307,308,311],{},[179,309,310],{},"通用圖片格式","：當您不想費心選擇檔案格式時，此格式非常有用。",[163,313,315],{"id":314},"avif","AVIF",[17,317,318],{},"AVIF（AV1 影像格式）是一種比 WebP 更新的「下一代」影像格式。它採用高品質視訊技術（即 AV1）創建。",[163,320,322],{"id":321},"avif-特性","AVIF 特性",[21,324,325,331,337],{},[24,326,327,330],{},[179,328,329],{},"目前頂級的壓縮率","：在保持與 JPEG 或 WebP 相同畫質的情況下，檔案體積更小。",[24,332,333,336],{},[179,334,335],{},"高品質色彩呈現","：支援 HDR（高動態範圍）和廣色域，可呈現更豐富的對比度和鮮豔的色彩。",[24,338,339,341],{},[179,340,292],{},"：支援透明度和動畫。",[163,343,345],{"id":344},"avif-使用場景","AVIF 使用場景",[21,347,348,354],{},[24,349,350,353],{},[179,351,352],{},"需要高品質圖像的 Web 內容","：非常適合同時實現高品質圖像和快速加載，例如用於 Netflix 等網站的縮圖。",[24,355,356,359],{},[179,357,358],{},"進一步提升網站速度","：當目標速度比 WebP 更快時，可考慮使用此格式。",[163,361,363],{"id":362},"jpeg-xl","JPEG XL",[17,365,366],{},"JPEG XL 是一種新格式，旨在克服先前 JPEG 標準的缺點，成為終極影像格式。",[221,368,370],{"id":369},"jpeg-xl-的功能","JPEG XL 的功能",[21,372,373,379,385,391],{},[24,374,375,378],{},[179,376,377],{},"高相容性","：將現有 JPEG 影像轉換為較小尺寸，且幾乎不損失影像品質。",[24,380,381,384],{},[179,382,383],{},"全方位支援","：為任何類型的圖像（包括照片、插圖和圖表）實現高壓縮率和高品質影像。",[24,386,387,390],{},[179,388,389],{},"多功能","：支援無損和有損壓縮、透明度 (Alpha)、動畫和高品質色彩（廣色域和 HDR）。",[24,392,393,396],{},[179,394,395],{},"漸進式顯示","：影像逐漸變得更清晰，減少感知等待時間，特別適用於大影像。",[221,398,400],{"id":399},"jpeg-xl-的用例","JPEG XL 的用例",[21,402,403,409],{},[24,404,405,408],{},[179,406,407],{},"影像格式統一","：預計這種單一格式最終將取代包括 JPEG、PNG 和 GIF 在內的多種格式。",[24,410,411,414],{},[179,412,413],{},"影像歸檔","：非常適合將 JPEG 影像儲存為較小尺寸，且不降低原始影像品質。",[13,416,417],{"id":417},"輸出格式摘要",[419,420,421,455],"table",{},[422,423,424],"thead",{},[425,426,427,431,434,437,440,443,446,449,452],"tr",{},[428,429,430],"th",{},"格式",[428,432,433],{},"主要優點",[428,435,436],{},"適用場景",[428,438,439],{},"有損",[428,441,442],{},"無損",[428,444,445],{},"Alpha頻道",[428,447,448],{},"HDR",[428,450,451],{},"壓縮比",[428,453,454],{},"壓縮負載",[456,457,458,486,509,532,569],"tbody",{},[425,459,460,464,467,470,473,476,478,480,483],{},[461,462,463],"td",{},"PNG (Oxipng)",[461,465,466],{},"無影像劣化，背景透明。",[461,468,469],{},"適用於標誌、圖示、圖表。",[461,471,472],{},"❌️",[461,474,475],{},"✅️",[461,477,475],{},[461,479,472],{},[461,481,482],{},"低",[461,484,485],{},"高",[425,487,488,491,494,497,499,501,503,505,507],{},[461,489,490],{},"JPEG (jpegli)",[461,492,493],{},"圖片可壓縮至極小尺寸。高品質壓縮。",[461,495,496],{},"常用網頁圖片。",[461,498,475],{},[461,500,472],{},[461,502,472],{},[461,504,472],{},[461,506,485],{},[461,508,482],{},[425,510,511,513,516,519,521,523,525,527,530],{},[461,512,266],{},[461,514,515],{},"高壓縮率，高品質，支援透明度和動畫。",[461,517,518],{},"適用於網站的通用圖片。",[461,520,475],{},[461,522,475],{},[461,524,475],{},[461,526,472],{},[461,528,529],{},"中",[461,531,529],{},[425,533,534,536,542,545,547,561,563,565,567],{},[461,535,315],{},[461,537,538,541],{},[179,539,540],{},"最高壓縮比和高影像品質","，支援廣色域 (HDR)。",[461,543,544],{},"適用於既需要高影像品質又需要快速顯示的網站。",[461,546,475],{},[461,548,472,549],{},[550,551,552],"sup",{},[553,554,560],"a",{"href":555,"ariaDescribedBy":556,"dataFootnoteRef":558,"id":559},"#user-content-fn-1",[557],"footnote-label","","user-content-fnref-1","1",[461,562,475],{},[461,564,475],{},[461,566,485],{},[461,568,485],{},[425,570,571,573,579,582,584,586,588,590,592],{},[461,572,363],{},[461,574,575,578],{},[179,576,577],{},"終極格式","，支援所有功能並與 JPEG 相容。",[461,580,581],{},"用於減少現有 JPEG 檔案的大小，並為未來統一影像格式。",[461,583,475],{},[461,585,475],{},[461,587,475],{},[461,589,475],{},[461,591,485],{},[461,593,482],{},[595,596,599,604],"section",{"className":597,"dataFootnotes":558},[598],"footnotes",[13,600,603],{"className":601,"id":557},[602],"sr-only","Footnotes",[605,606,607],"ol",{},[24,608,610,611,616,617],{"id":609},"user-content-fn-1","AVIF 本身是無損格式，但由於其高負載和大檔案體積，本程式並未實現。\n如需無損使用，我們建議使用 JPEG XL。\n參考：",[553,612,613],{"href":613,"rel":614},"https:\u002F\u002Fgithub.com\u002FAOMediaCodec\u002Fav1-avif\u002Fissues\u002F111",[615],"nofollow"," ",[553,618,623],{"href":619,"ariaLabel":620,"className":621,"dataFootnoteBackref":558},"#user-content-fnref-1","Back to reference 1",[622],"data-footnote-backref","↩",{"title":558,"searchDepth":625,"depth":625,"links":626},2,[627,628,640,641],{"id":15,"depth":625,"text":15},{"id":158,"depth":625,"text":158,"children":629},[630,632,633,634,635,636,637,638,639],{"id":165,"depth":631,"text":166},3,{"id":172,"depth":631,"text":173},{"id":191,"depth":631,"text":192},{"id":215,"depth":631,"text":216},{"id":265,"depth":631,"text":266},{"id":314,"depth":631,"text":315},{"id":321,"depth":631,"text":322},{"id":344,"depth":631,"text":345},{"id":362,"depth":631,"text":363},{"id":417,"depth":625,"text":417},{"id":557,"depth":625,"text":603},false,"md",null,{},true,"\u002Fformat-guide",{"title":5,"description":558},"format-guide","_vP2u9pekb9KGINrsvMCaSdq24IcPiBgFMh3n2jjFfI",1780198564771]