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联合图像专家组 - 使用有损压缩的照片最通用的图像格式。减少90-95%的文件大小，同时几乎没有可见的质量损失。没有透明度支持。非常适合照片、网页图像、电子邮件附件以及任何需要小文件大小的场景。可调的质量级别从1到100。自1992年以来的标准，具有通用设备和软件支持。理想用于照片和颜色丰富的复杂图像。

可移植网络图形 - 支持透明度和1600万种颜色的无损图像格式。文件比JPEG大，但完美保留质量。支持平滑透明度的alpha通道。非常适合徽标、带文本的图形、屏幕截图和需要透明度的图像。对于照片来说，比GIF压缩效果更好。非常适合网页图形、用户界面元素和任何需要无损质量或透明度的图像。自1996年以来的网页图形标准格式。

Web Picture format - modern image format by Google providing 25-35% smaller files than JPEG at equivalent quality. Supports both lossy and lossless compression plus transparency. Superior compression algorithms reducing bandwidth usage. Native browser support (96%+ coverage). Perfect for website optimization, web images, and reducing page load times. Combines best features of JPEG, PNG, and GIF. Recommended for modern web development.

图形交换格式 - 支持动画和透明度的图像格式，具有256色限制。简单图像的小文件大小。非常适合简单动画、表情符号、迷因和颜色较少的图形。对于有限调色板是无损的。对于照片（使用JPEG）或高色彩图形（使用PNG）效率低下。自1987年以来的通用支持。简单网页动画和反应图像的标准格式。

可缩放矢量图形 - 基于XML的矢量格式，能够在任何大小下完美渲染。无限缩放而不会失去质量或出现像素化。几何形状和插图的小文件大小。可用文本编辑器和设计软件编辑。非常适合徽标、图标、图表和需要缩放的图形。支持动画和交互性。响应式网页图形和分辨率独立设计的标准。现代网页图标的必备格式。

Icon File Format - specialized format for Windows icons containing multiple image sizes (16x16 to 256x256 pixels). Single file provides icons for all display resolutions. Used for favicons, application icons, and Windows shell icons. Supports transparency and multiple color depths. Perfect for website favicons, Windows program icons, and shortcut icons. Standard format for Windows icons since Windows 1.0. Essential for professional Windows applications.

AV1图像文件格式 - 基于AV1视频编码器的下一代图像格式，提供比WebP和JPEG更好的压缩。以相同质量减少20-50%的文件大小。支持HDR、广色域和透明度。尖端压缩技术。浏览器支持不断增长（85%以上且持续增加）。非常适合未来的网页图像和最大效率。比任何以前的格式在更小的尺寸下提供更好的质量。推荐用于优先考虑性能的现代网站。

Bitmap Image File - uncompressed raster format from Microsoft providing pixel-perfect quality with large file sizes. No compression means huge files (1MB+ for screenshots). Fast to load and display. Simple format with universal Windows support. Perfect for temporary graphics, screen captures, and scenarios where compression artifacts are unacceptable. Legacy format largely replaced by PNG. Convert to PNG or JPEG for practical use and storage.

标记图像文件格式 - 灵活的格式，支持多个页面、图层和各种压缩方法。专业摄影、出版和档案的行业标准。支持无损压缩、16位色深和广泛的元数据。文件大小较大，但质量极佳。非常适合印刷出版、照片档案、专业摄影以及需要最大质量和灵活性的场景。用于医学成像和专业扫描。

Photoshop Document - Adobe Photoshop's native format preserving layers, effects, masks, and all editing capabilities. Supports 16-bit and 32-bit color depths for professional work. Large file sizes due to layer data and editing information. Perfect for ongoing design projects, professional photo editing, and collaborative design work. Not suitable for final output (export to JPEG/PNG). Essential format for professional graphic design and photo manipulation workflows. Industry standard for design files.

OpenEXR - high dynamic range image format developed by Industrial Light & Magic for visual effects and animation. Stores 16-bit or 32-bit floating-point values per channel enabling enormous dynamic range. Supports multiple layers, arbitrary channels, and lossless/lossy compression. Industry standard for VFX, CGI, and professional 3D rendering. Perfect for HDR photography, compositing, and scenarios requiring maximum color precision. Used extensively in film production and high-end visual effects.

高动态范围图像 - 存储亮度和色彩信息的格式，其范围大于标准图像。捕捉和显示JPEG/PNG中不可能的亮度级别。使用32位浮点编码。非常适合3D渲染、环境贴图和HDR摄影中的真实照明。游戏开发和建筑可视化中常见。实现真实的色调映射和曝光调整。专业照明工作流程的必备格式。

DirectDraw Surface - Microsoft texture format for games and 3D applications supporting compressed textures and mipmaps. Optimized for GPU loading with hardware-accelerated decompression. Stores multiple resolution levels (mipmaps) in single file. Standard format for game textures (DirectX, Unity, Unreal). Supports various compression algorithms (DXT1, DXT5, BC7). Perfect for game development, 3D modeling, and real-time rendering. Essential format for game asset pipelines.

Truevision TGA/Targa - raster graphics format supporting 8-32 bits per pixel with alpha channel. Uncompressed or RLE compressed for fast loading. Standard format for video editing, animation, and texture mapping. Excellent color accuracy with optional lossless compression. Perfect for video frame sequences, animation frames, and game textures. Widely supported in 3D software and video editing applications. Reliable format for professional media production.

JPEG 2000 - 使用小波压缩的高级图像格式，在相同文件大小下提供比JPEG更好的质量。支持无损和有损压缩、渐进解码和ROI编码。用于医学成像、数字电影和档案。比JPEG具有更好的压缩伪影。编码/解码速度较慢。非常适合医学成像、数字保存和需要优越压缩的应用。网络浏览器支持有限。

JPEG立体 - 立体3D图像格式，存储左右眼视图并排或上下。基于标准JPEG，具有用于3D观看的特殊排列。用于3D摄影、虚拟现实内容和立体显示。与3D电视和虚拟现实头盔兼容。非常适合3D摄影、立体内容创作和虚拟现实/增强现实应用。需要特殊的观看设备以获得适当的3D效果。

Portable Float Map - floating-point image format storing HDR color data. Simple format with 32-bit float values per channel. Used in computer graphics for HDR images and height maps. Uncompressed format with large file sizes. Perfect for HDR photography processing, displacement maps, and scientific imaging. Common in 3D rendering and simulation applications. Alternative to OpenEXR for simple HDR storage.

灵活图像传输系统 - 主要用于天文学的科学图像格式。存储带有广泛元数据头的天文图像。支持多个数据数组和表。天文数据档案的标准格式。非常适合天文成像、科学数据交换和研究应用。被全球主要天文台和航天机构使用。天文学研究和数据共享的必备格式。