[{"data":1,"prerenderedAt":919},["ShallowReactive",2],{"blog-post-/blog/zh-tw/lossy-vs-lossless-compression":3,"related-posts-/zh-TW/blog/lossy-vs-lossless-compression":308},{"id":4,"title":5,"author":6,"body":7,"category":287,"date":288,"description":289,"extension":290,"featured":291,"image":292,"meta":293,"navigation":294,"path":295,"readingTime":296,"seo":297,"stem":298,"tags":299,"tools":305,"__hash__":307},"content/blog/zh-TW/lossy-vs-lossless-compression.md","有損 vs 無損壓縮：有什麼區別？","Anything Tools 團隊",{"type":8,"value":9,"toc":269},"minimark",[10,14,27,30,35,41,45,48,52,74,80,84,90,93,96,99,119,124,128,201,205,212,219,223,244,247,250,266],[11,12,5],"h1",{"id":13},"有損-vs-無損壓縮有什麼區別",[15,16,17,18,22,23,26],"p",{},"在為 Web 優化圖片時，您經常會遇到兩個術語：",[19,20,21],"strong",{},"有損","和",[19,24,25],{},"無損","壓縮。了解區別是在視覺品質和檔案大小之間取得平衡的關鍵。",[15,28,29],{},"在本指南中，我們將分解每種方法的工作原理以及何時應該使用它們。",[31,32,34],"h2",{"id":33},"什麼是無損壓縮","什麼是無損壓縮？",[15,36,37,40],{},[19,38,39],{},"無損壓縮","在不丟失任何圖像數據的情況下減小檔案大小。當您解壓縮檔案時，它與原始檔案逐位元相同。",[42,43,44],"h3",{"id":44},"它如何工作",[15,46,47],{},"它就像圖片的 ZIP 檔案。它找到儲存數據模式的有效方法。例如，這裡不保存「白色像素，白色像素，白色像素」，而是可能保存「3x 白色像素」。",[42,49,51],{"id":50},"最佳用例","最佳用例：",[53,54,55,62,68],"ul",{},[56,57,58,61],"li",{},[19,59,60],{},"截圖和 UI 元素："," 邊緣和文字需要保持清晰。",[56,63,64,67],{},[19,65,66],{},"徽標和圖示："," 具有純色的圖形。",[56,69,70,73],{},[19,71,72],{},"專業攝影："," 品質至關重要的存檔副本（例如，RAW 檔案）。",[15,75,76,79],{},[19,77,78],{},"格式範例："," PNG, GIF, WebP (無損模式), AVIF (無損模式)。",[31,81,83],{"id":82},"什麼是有損壓縮","什麼是有損壓縮？",[15,85,86,89],{},[19,87,88],{},"有損壓縮","透過永久丟棄一些數據來顯著減小檔案大小。它依賴於人類感知的侷限性，去除了我們的眼睛不太可能注意到的細節。",[42,91,44],{"id":92},"它如何工作-1",[15,94,95],{},"它簡化顏色資訊並平滑細節。壓縮得越多，「偽影」（塊狀或模糊）就越明顯。",[42,97,51],{"id":98},"最佳用例-1",[53,100,101,107,113],{},[56,102,103,106],{},[19,104,105],{},"照片："," 具有數百萬種顏色的複雜圖像。",[56,108,109,112],{},[19,110,111],{},"Web 圖片："," 速度至關重要的背景、橫幅和畫廊照片。",[56,114,115,118],{},[19,116,117],{},"縮圖："," 小預覽圖。",[15,120,121,123],{},[19,122,78],{}," JPEG, WebP (有損模式), AVIF (有損模式)。",[31,125,127],{"id":126},"對比檔案大小-vs-品質","對比：檔案大小 vs 品質",[129,130,131,145],"table",{},[132,133,134],"thead",{},[135,136,137,141,143],"tr",{},[138,139,140],"th",{},"特性",[138,142,25],{},[138,144,21],{},[146,147,148,162,175,188],"tbody",{},[135,149,150,156,159],{},[151,152,153],"td",{},[19,154,155],{},"數據完整性",[151,157,158],{},"100% 原始數據",[151,160,161],{},"丟棄部分數據",[135,163,164,169,172],{},[151,165,166],{},[19,167,168],{},"檔案大小減少",[151,170,171],{},"中等 (10-30%)",[151,173,174],{},"顯著 (50-90%)",[135,176,177,182,185],{},[151,178,179],{},[19,180,181],{},"視覺品質",[151,183,184],{},"完美",[151,186,187],{},"難以察覺到差（取決於設定）",[135,189,190,195,198],{},[151,191,192],{},[19,193,194],{},"可逆性",[151,196,197],{},"可逆",[151,199,200],{},"不可逆",[31,202,204],{"id":203},"您應該為您的網站選擇哪一個","您應該為您的網站選擇哪一個？",[15,206,207,208,211],{},"對於大多數 Web 場景，",[19,209,210],{},"有損壓縮是贏家","。",[15,213,214,215,218],{},"為什麼？因為人眼是寬容的。一張輕微壓縮的 JPEG 可能看起來和原始 PNG 99% 一樣好，但",[19,216,217],{},"小 80%","。檔案大小的大幅減少不僅帶來顯著更快的頁面載入速度，還能提升 SEO 排名。",[42,220,222],{"id":221},"我們的建議","我們的建議：",[224,225,226,232,238],"ol",{},[56,227,228,231],{},[19,229,230],{},"對於照片："," 使用有損 JPEG, WebP, 或 AVIF。大約 80-85% 品質的設定通常能提供完美的平衡。",[56,233,234,237],{},[19,235,236],{},"對於徽標/圖示："," 使用 SVG (向量) 或無損 PNG。",[56,239,240,243],{},[19,241,242],{},"對於截圖："," 使用無損 PNG 或 WebP。",[31,245,246],{"id":246},"親自嘗試",[15,248,249],{},"想看看區別嗎？使用我們的免費工具進行實驗：",[53,251,252,260],{},[56,253,254,259],{},[255,256,258],"a",{"href":257},"/image/converter/png-to-avif","壓縮 PNG 圖片"," (嘗試轉換為 AVIF 以獲得更好的結果)",[56,261,262],{},[255,263,265],{"href":264},"/image/converter/jpg-to-webp","優化 JPEG 圖片",[15,267,268],{},"透過選擇正確的壓縮方法，您可以確保您的網站看起來很棒並且載入迅速。",{"title":270,"searchDepth":271,"depth":271,"links":272},"",2,[273,278,282,283,286],{"id":33,"depth":271,"text":34,"children":274},[275,277],{"id":44,"depth":276,"text":44},3,{"id":50,"depth":276,"text":51},{"id":82,"depth":271,"text":83,"children":279},[280,281],{"id":92,"depth":276,"text":44},{"id":98,"depth":276,"text":51},{"id":126,"depth":271,"text":127},{"id":203,"depth":271,"text":204,"children":284},[285],{"id":221,"depth":276,"text":222},{"id":246,"depth":271,"text":246},"圖片優化","2026-01-22T00:00:00.000Z","了解有損和無損圖片壓縮之間的主要區別。了解何時使用每種方法來優化您網站的效能。","md",false,"/blog/lossy-vs-lossless.jpg",{},true,"/blog/zh-tw/lossy-vs-lossless-compression",5,{"title":5,"description":289},"blog/zh-TW/lossy-vs-lossless-compression",[300,301,302,303,304],"壓縮","JPG","PNG","優化","Web 開發",[306],"/image/compressor","iGiLfeFaP-YUlQjAUimvau28O_uCwq5y_LUtzS47KLw",[309,828],{"id":310,"title":311,"author":6,"body":312,"category":287,"date":813,"description":814,"extension":290,"featured":291,"image":815,"meta":816,"navigation":294,"path":817,"readingTime":818,"seo":819,"stem":820,"tags":821,"tools":825,"__hash__":827},"content/blog/zh-TW/avif-vs-webp-comparison.md","AVIF vs WebP: 2026 年哪種圖片格式最好？",{"type":8,"value":313,"toc":794},[314,317,327,334,338,439,443,448,452,472,476,482,486,506,509,513,516,529,533,536,540,554,568,703,706,709,712,715,733,736,747,751,756,764,769,780,790],[11,315,311],{"id":316},"avif-vs-webp-2026-年哪種圖片格式最好",[15,318,319,320,323,324,211],{},"在追求更快的網站和更好的使用者體驗的過程中，圖片優化起著至關重要的作用。多年來，",[19,321,322],{},"WebP"," 一直是 JPEG 和 PNG 的挑戰者。但現在，一個新的競爭者出現了：",[19,325,326],{},"AVIF",[15,328,329,330,333],{},"在本指南中，我們將比較 ",[19,331,332],{},"AVIF vs WebP","，幫助您決定哪種下一代格式適合您 2026 年的專案。",[31,335,337],{"id":336},"概覽結論","概覽：結論",[129,339,340,353],{},[132,341,342],{},[135,343,344,346,348,350],{},[138,345,140],{},[138,347,322],{},[138,349,326],{},[138,351,352],{},"勝者",[146,354,355,372,389,406,423],{},[135,356,357,361,364,367],{},[151,358,359],{},[19,360,300],{},[151,362,363],{},"好 (比 JPEG 小 25-35%)",[151,365,366],{},"優秀 (比 JPEG 小 50%+)",[151,368,369,370],{},"🏆 ",[19,371,326],{},[135,373,374,379,382,385],{},[151,375,376],{},[19,377,378],{},"品質",[151,380,381],{},"中/高位元率下表現良好",[151,383,384],{},"低位元率下表現卓越",[151,386,369,387],{},[19,388,326],{},[135,390,391,396,399,402],{},[151,392,393],{},[19,394,395],{},"瀏覽器支援",[151,397,398],{},"通用 (97%+)",[151,400,401],{},"優秀 (93%+)",[151,403,369,404],{},[19,405,322],{},[135,407,408,413,416,419],{},[151,409,410],{},[19,411,412],{},"編碼速度",[151,414,415],{},"快",[151,417,418],{},"較慢",[151,420,369,421],{},[19,422,322],{},[135,424,425,429,432,435],{},[151,426,427],{},[19,428,140],{},[151,430,431],{},"透明度, 動畫",[151,433,434],{},"透明度, 動畫, HDR, 廣色域",[151,436,369,437],{},[19,438,326],{},[31,440,442],{"id":441},"什麼是-webp","什麼是 WebP？",[15,444,445,447],{},[19,446,322],{}," 是 Google 於 2010 年開發的一種圖片格式。它使用預測編碼比 JPEG 或 PNG 更有效地壓縮圖片。",[42,449,451],{"id":450},"webp-的主要優勢","WebP 的主要優勢：",[53,453,454,460,466],{},[56,455,456,459],{},[19,457,458],{},"廣泛支援："," 支援所有主流瀏覽器（Chrome, Firefox, Safari, Edge）。",[56,461,462,465],{},[19,463,464],{},"多功能："," 支援有損和無損壓縮，以及透明度（alpha 通道）和動畫。",[56,467,468,471],{},[19,469,470],{},"效能："," 通常比同類 JPEG 圖片小 25-35%。",[31,473,475],{"id":474},"什麼是-avif","什麼是 AVIF？",[15,477,478,481],{},[19,479,480],{},"AVIF (AV1 Image File Format)"," 是一種源自 AV1 影片編解碼器關鍵畫格的較新格式。它由開放媒體聯盟 (AOMedia) 於 2019 年發布。",[42,483,485],{"id":484},"avif-的主要優勢","AVIF 的主要優勢：",[53,487,488,494,500],{},[56,489,490,493],{},[19,491,492],{},"卓越壓縮："," 在相同品質下，可以比 JPEG 小 50%，比 WebP 小 20-30%。",[56,495,496,499],{},[19,497,498],{},"高品質："," 與 WebP（可能會出現塊狀）相比，在極小的檔案大小下仍能保持更好的結構細節。",[56,501,502,505],{},[19,503,504],{},"高級特性："," 原生支援 HDR（高動態範圍）和廣色域 (WCG)。",[31,507,508],{"id":508},"詳細比較",[42,510,512],{"id":511},"_1-檔案大小與壓縮","1. 檔案大小與壓縮",[15,514,515],{},"AVIF 在這裡是明顯的贏家。其壓縮演算法更先進，能夠將更多數據壓縮到更少的位元組中。在我們的測試中：",[53,517,518,524],{},[56,519,520,521,523],{},"100KB JPEG 轉換為 ",[19,522,322],{},": ~70KB",[56,525,520,526,528],{},[19,527,326],{},": ~50KB",[42,530,532],{"id":531},"_2-視覺品質","2. 視覺品質",[15,534,535],{},"在較小的檔案大小下，WebP 傾向於引入「塊狀」或塗抹偽影。另一方面，AVIF 可能會丟失一些細微的紋理/顆粒，但通常能更好地保留邊緣和形狀，即使在激進的壓縮水準下，也能產生更令人愉悅的影像。",[42,537,539],{"id":538},"_3-瀏覽器支援-2026","3. 瀏覽器支援 (2026)",[53,541,542,548],{},[56,543,544,547],{},[19,545,546],{},"WebP:"," 基本得到所有支援。作為主要格式使用是安全的。",[56,549,550,553],{},[19,551,552],{},"AVIF:"," 支援 Chrome, Firefox, Safari (iOS 16+, macOS Ventura+), 和 Edge。全球支援率超過 93%。",[555,556,557],"blockquote",{},[15,558,559,562,563,567],{},[19,560,561],{},"建議："," 使用 ",[564,565,566],"code",{},"\u003Cpicture>"," 標籤向現代瀏覽器提供 AVIF，並為舊瀏覽器降級到 WebP 或 JPEG。",[569,570,574],"pre",{"className":571,"code":572,"language":573,"meta":270,"style":270},"language-html shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","\u003Cpicture>\n  \u003Csource srcset=\"image.avif\" type=\"image/avif\">\n  \u003Csource srcset=\"image.webp\" type=\"image/webp\">\n  \u003Cimg src=\"image.jpg\" alt=\"描述\">\n\u003C/picture>\n","html",[564,575,576,592,630,660,694],{"__ignoreMap":270},[577,578,581,585,589],"span",{"class":579,"line":580},"line",1,[577,582,584],{"class":583},"sMK4o","\u003C",[577,586,588],{"class":587},"swJcz","picture",[577,590,591],{"class":583},">\n",[577,593,594,597,600,604,607,610,614,616,619,621,623,626,628],{"class":579,"line":271},[577,595,596],{"class":583},"  \u003C",[577,598,599],{"class":587},"source",[577,601,603],{"class":602},"spNyl"," srcset",[577,605,606],{"class":583},"=",[577,608,609],{"class":583},"\"",[577,611,613],{"class":612},"sfazB","image.avif",[577,615,609],{"class":583},[577,617,618],{"class":602}," type",[577,620,606],{"class":583},[577,622,609],{"class":583},[577,624,625],{"class":612},"image/avif",[577,627,609],{"class":583},[577,629,591],{"class":583},[577,631,632,634,636,638,640,642,645,647,649,651,653,656,658],{"class":579,"line":276},[577,633,596],{"class":583},[577,635,599],{"class":587},[577,637,603],{"class":602},[577,639,606],{"class":583},[577,641,609],{"class":583},[577,643,644],{"class":612},"image.webp",[577,646,609],{"class":583},[577,648,618],{"class":602},[577,650,606],{"class":583},[577,652,609],{"class":583},[577,654,655],{"class":612},"image/webp",[577,657,609],{"class":583},[577,659,591],{"class":583},[577,661,663,665,668,671,673,675,678,680,683,685,687,690,692],{"class":579,"line":662},4,[577,664,596],{"class":583},[577,666,667],{"class":587},"img",[577,669,670],{"class":602}," src",[577,672,606],{"class":583},[577,674,609],{"class":583},[577,676,677],{"class":612},"image.jpg",[577,679,609],{"class":583},[577,681,682],{"class":602}," alt",[577,684,606],{"class":583},[577,686,609],{"class":583},[577,688,689],{"class":612},"描述",[577,691,609],{"class":583},[577,693,591],{"class":583},[577,695,696,699,701],{"class":579,"line":296},[577,697,698],{"class":583},"\u003C/",[577,700,588],{"class":587},[577,702,591],{"class":583},[31,704,705],{"id":705},"如何轉換圖片",[15,707,708],{},"您不需要昂貴的軟體來創建下一代圖片。",[42,710,711],{"id":711},"線上工具",[15,713,714],{},"您可以使用我們的免費工具來轉換您的圖片：",[53,716,717,722,727],{},[56,718,719],{},[255,720,721],{"href":264},"JPG 轉 WebP",[56,723,724],{},[255,725,726],{"href":257},"PNG 轉 AVIF",[56,728,729],{},[255,730,732],{"href":731},"/image/converter/heic-to-jpg","HEIC 轉 JPG",[42,734,735],{"id":735},"命令列",[15,737,738,739,742,743,746],{},"對於開發人員，像 ",[564,740,741],{},"ffmpeg"," (用於 AVIF) 或 ",[564,744,745],{},"cwebp"," (用於 WebP) 這樣的工具是批次處理的強大選擇。",[31,748,750],{"id":749},"結論您應該使用哪一個","結論：您應該使用哪一個？",[15,752,753],{},[19,754,755],{},"使用 WebP 如果：",[53,757,758,761],{},[56,759,760],{},"您需要最大的相容性而無需降級策略。",[56,762,763],{},"您需要快速的編碼速度（例如，動態生成圖片）。",[15,765,766],{},[19,767,768],{},"使用 AVIF 如果：",[53,770,771,774,777],{},[56,772,773],{},"您想要絕對最小的檔案大小以實現最快的頁面載入。",[56,775,776],{},"您需要 HDR 支援或更高位深度的顏色。",[56,778,779],{},"您樂於使用降級標籤。",[15,781,782,785,786,789],{},[19,783,784],{},"最終結論："," 在 2026 年，",[19,787,788],{},"AVIF 是效能的最佳選擇","，但 WebP 仍然是一個堅實、普遍支援的主力。最好的策略通常是兩者都用。",[791,792,793],"style",{},"html pre.shiki code .sMK4o, html code.shiki .sMK4o{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}html pre.shiki code .swJcz, html code.shiki .swJcz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}html pre.shiki code .spNyl, html code.shiki .spNyl{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .sfazB, html code.shiki .sfazB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}",{"title":270,"searchDepth":271,"depth":271,"links":795},[796,797,800,803,808,812],{"id":336,"depth":271,"text":337},{"id":441,"depth":271,"text":442,"children":798},[799],{"id":450,"depth":276,"text":451},{"id":474,"depth":271,"text":475,"children":801},[802],{"id":484,"depth":276,"text":485},{"id":508,"depth":271,"text":508,"children":804},[805,806,807],{"id":511,"depth":276,"text":512},{"id":531,"depth":276,"text":532},{"id":538,"depth":276,"text":539},{"id":705,"depth":271,"text":705,"children":809},[810,811],{"id":711,"depth":276,"text":711},{"id":735,"depth":276,"text":735},{"id":749,"depth":271,"text":750},"2026-01-20T00:00:00.000Z","AVIF 和 WebP 圖片格式的全面比較。了解壓縮、品質、瀏覽器支援，以及你應該為網站選擇哪一種。","/blog/avif-vs-webp.jpg",{},"/blog/zh-tw/avif-vs-webp-comparison",6,{"title":311,"description":814},"blog/zh-TW/avif-vs-webp-comparison",[326,322,822,823,824],"圖片壓縮","Web效能","SEO",[826],"/image/converter/webp-to-avif","dWZd1mWtzVQKa-sFtAKAiXZVy0RkvrLKqqoAnUqvN3o",{"id":829,"title":830,"author":831,"body":832,"category":287,"date":905,"description":906,"extension":290,"featured":291,"image":907,"meta":908,"navigation":294,"path":909,"readingTime":910,"seo":911,"stem":912,"tags":913,"tools":917,"__hash__":918},"content/blog/zh-TW/how-to-compress-images-for-faster-page-speed.md","如何壓縮圖片以提升頁面載入速度","Anything Tools 編輯部",{"type":8,"value":833,"toc":898},[834,836,839,843,846,850,858,862,870,874,891,895],[11,835,830],{"id":830},[15,837,838],{},"圖片過大，仍然是網站變慢最常見的原因之一。它會先傷害行動端體驗，也會拖累 Core Web Vitals。",[31,840,842],{"id":841},"why-compression-matters","Why compression matters",[15,844,845],{},"Large images increase download weight, slow perceived load time, and make Core Web Vitals harder to improve.",[31,847,849],{"id":848},"pick-the-right-format-first","Pick the right format first",[15,851,852,853,857],{},"Use JPG for photos, PNG for graphics with transparency, and WebP when you want a modern web delivery format. You can compare options with the ",[255,854,856],{"href":855},"/image/converter","Image Converter",".",[31,859,861],{"id":860},"resize-before-compressing","Resize before compressing",[15,863,864,865,869],{},"Do not compress a 4000px image if the layout only needs 1200px. Start with the ",[255,866,868],{"href":867},"/image/resizer","Image Resizer",", then compress the smaller file.",[31,871,873],{"id":872},"delivery-workflow","Delivery workflow",[224,875,876,879,882,888],{},[56,877,878],{},"Export the original asset.",[56,880,881],{},"Resize to the real display range.",[56,883,884,885,857],{},"Compress with ",[255,886,887],{"href":306},"Image Compressor",[56,889,890],{},"Recheck the page and compare before/after in the browser.",[31,892,894],{"id":893},"final-takeaway","Final takeaway",[15,896,897],{},"For better page speed, think in this order: dimensions first, format second, compression third.",{"title":270,"searchDepth":271,"depth":271,"links":899},[900,901,902,903,904],{"id":841,"depth":271,"text":842},{"id":848,"depth":271,"text":849},{"id":860,"depth":271,"text":861},{"id":872,"depth":271,"text":873},{"id":893,"depth":271,"text":894},"2026-03-24T00:00:00.000Z","一套實用的圖片壓縮流程：選對格式、先縮尺寸再上傳，並在畫質與 Core Web Vitals 之間取得平衡。","/blog/how-to-compress-images-for-faster-page-speed.png",{},"/blog/zh-tw/how-to-compress-images-for-faster-page-speed",7,{"title":830,"description":906},"blog/zh-TW/how-to-compress-images-for-faster-page-speed",[822,914,915,916,824],"頁面速度","Core Web Vitals","網頁效能",[306],"OiSYuHGKWl_vorbvc9BKEaFzC-rVuZu0A72DCccPyVM",1781687154025]