[{"data":1,"prerenderedAt":651},["ShallowReactive",2],{"page-zhHans-\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_zhHans\u002Fformat-guide.md","支持的格式指南",{"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},"支持的输入格式",[17,18,19],"p",{},"Drop Compress Image 支持以下输入图像格式：",[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},"支持的输出格式",[17,160,161],{},"本节介绍此程序支持的输出格式。",[163,164,166],"h3",{"id":165},"pngoxipng","PNG（Oxipng）",[17,168,169],{},"PNG（Portable Network Graphic）是一种允许您保存图像而不会损失图像质量的格式。\n此程序使用 Zopfli，这是 Google 开发的一种特殊压缩技术，可以使 PNG 图像“更小”，但处理时间会更长。",[163,171,173],{"id":172},"png-功能","PNG 功能",[21,175,176,183],{},[24,177,178,182],{},[179,180,181],"strong",{},"无损压缩","：无论保存多少次，原始图像质量都不会降低。",[24,184,185,188],{},[179,186,187],{},"透明度 (Alpha)","：允许使用透明背景。",[163,190,192],{"id":191},"png-使用场景","PNG 使用场景",[21,194,195,201,207],{},[24,196,197,200],{},[179,198,199],{},"徽标、图标和图表","：边框清晰、颜色较少的图像，或需要使用透明背景的图像。",[24,202,203,206],{},[179,204,205],{},"网站素材","：用于避免图像质量下降。",[24,208,209,212],{},[179,210,211],{},"保留原始数据","：可能反复编辑的图像。",[163,214,216],{"id":215},"jpegmozjpeg-压缩","JPEG（MozJPEG 压缩）",[17,218,219],{},"JPEG（Joint Photographic Experts Group）是一种主要用于照片的格式，强调“即使牺牲一些图像质量，也要保持小尺寸”。\n本程序中使用的 MozJPEG 是由 Mozilla 开发的一项技术，旨在进一步减小 JPEG 图像大小，同时最大限度地减少视觉质量下降。",[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],{},"有损压缩","：为了减小文件大小，会删除人眼难以察觉的信息，从而略微降低图像质量（压缩率越高，质量下降越明显）。",[24,234,235,238],{},[179,236,237],{},"高压缩率","：可以将包含多种色彩的复杂图像（例如照片）压缩到极小的尺寸。",[24,240,241,244],{},[179,242,243],{},"jpegli","：与传统 JPEG 相比，在相同文件大小下，它可以实现更高的图像质量，甚至可以在相同图像质量下实现更小的文件大小。它使用与 JPEG XL 相同的技术，可实现高质量压缩。",[221,246,248],{"id":247},"jpeg-使用场景","JPEG 使用场景",[21,250,251,257],{},[24,252,253,256],{},[179,254,255],{},"普通照片","：包含多种色彩和渐变的图像，例如风景和人像。",[24,258,259,262],{},[179,260,261],{},"网站上的大型照片","：当文件大小是加快加载速度的首要考虑因素时。",[163,264,266],{"id":265},"webp","WebP",[17,268,269],{},"WebP 是由 Google 开发的一种全新图片格式，它融合了 JPEG 和 PNG 的优点。",[221,271,273],{"id":272},"webp-特点","WebP 特点",[21,275,276,282,288],{},[24,277,278,281],{},[179,279,280],{},"高压缩率和高画质","：在保持与 JPEG 相同的压缩率的同时，保持比 PNG 更高的画质。",[24,283,284,287],{},[179,285,286],{},"有损\u002F无损支持","：支持有损压缩（用于照片）和无损压缩（用于插图）。",[24,289,290,293],{},[179,291,292],{},"透明度 (Alpha) 和动画","：支持类似 PNG 的背景透明度和类似 GIF 的动画（比 GIF 画质更高、文件更小）。",[221,295,297],{"id":296},"webp-使用场景","WebP 使用场景",[21,299,300,306],{},[24,301,302,305],{},[179,303,304],{},"通用网站图片","：使用此格式替换大多数图片，包括照片、图标和动画，以提高网站速度。",[24,307,308,311],{},[179,309,310],{},"通用图片格式","：当您不想费心选择文件格式时，此格式非常有用。",[163,313,315],{"id":314},"avif","AVIF",[17,317,318],{},"AVIF（AV1 Image Format）是一种比 WebP 更新的“下一代”图像格式。它采用高质量视频技术（即 AV1）创建。",[163,320,322],{"id":321},"avif-特性","AVIF 特性",[21,324,325,331,337],{},[24,326,327,330],{},[179,328,329],{},"目前顶级的压缩率","：在保持与 JPEG 或 WebP 相同画质的情况下，文件体积更小。",[24,332,333,336],{},[179,334,335],{},"高品质色彩呈现","：支持 HDR（高动态范围）和广色域，可呈现更丰富的对比度和鲜艳的色彩。",[24,338,339,341],{},[179,340,292],{},"：支持透明度和动画。",[163,343,345],{"id":344},"avif-使用场景","AVIF 使用场景",[21,347,348,354],{},[24,349,350,353],{},[179,351,352],{},"需要高质量图像的 Web 内容","：非常适合同时实现高质量图像和快速加载，例如用于 Netflix 等网站的缩略图。",[24,355,356,359],{},[179,357,358],{},"进一步提升网站速度","：当目标速度比 WebP 更快时，可考虑使用此格式。",[163,361,363],{"id":362},"jpeg-xl","JPEG XL",[17,365,366],{},"JPEG XL 是一种新格式，旨在克服先前 JPEG 标准的缺点，成为终极图像格式。",[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],{},"高兼容性","：将现有 JPEG 图像转换为更小尺寸，且几乎不损失图像质量。",[24,380,381,384],{},[179,382,383],{},"全方位支持","：为任何类型的图像（包括照片、插图和图表）实现高压缩率和高质量图像。",[24,386,387,390],{},[179,388,389],{},"多功能","：支持无损和有损压缩、透明度 (Alpha)、动画和高质量色彩（广色域和 HDR）。",[24,392,393,396],{},[179,394,395],{},"渐进式显示","：图像逐渐变得更清晰，减少感知等待时间，尤其适用于大图像。",[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],{},"图像格式统一","：预计这种单一格式最终将取代包括 JPEG、PNG 和 GIF 在内的多种格式。",[24,410,411,414],{},[179,412,413],{},"图像归档","：非常适合将 JPEG 图像保存为较小尺寸，且不降低原始图像质量。",[13,416,417],{"id":417},"输出格式摘要",[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],{},"主要优点",[428,435,436],{},"适用场景",[428,438,439],{},"有损",[428,441,442],{},"无损",[428,444,445],{},"Alpha通道",[428,447,448],{},"HDR",[428,450,451],{},"压缩比",[428,453,454],{},"压缩负载",[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],{},"无图像劣化，背景透明。",[461,468,469],{},"适用于徽标、图标、图表。",[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],{},"图片可压缩至极小尺寸。高质量压缩。",[461,495,496],{},"常用网页图片。",[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],{},"高压缩率，高质量，支持透明度和动画。",[461,517,518],{},"适用于网站的通用图片。",[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],{},"最高压缩比和高图像质量","，支持广色域 (HDR)。",[461,543,544],{},"适用于既需要高图像质量又需要快速显示的网站。",[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],{},"终极格式","，支持所有功能并与 JPEG 兼容。",[461,580,581],{},"用于减小现有 JPEG 文件的大小，并为未来统一图像格式。",[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 本身是无损格式，但由于其高负载和大文件体积，本程序并未实现。\n如需无损使用，我们建议使用 JPEG XL。\n参考：",[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","OVturVYdULE7Hkc2k7wFDIahaui_S40RHjuaweCgsOo",1780198564321]