AI-Powered

图像比较

比较两张图像--滑块、并排、差异、洋葱皮和像素统计。

Your files stay on your device - processed locally via WebAssembly, never uploaded

Image A

Drop image A

JPEG, PNG, WebP

Image B

Drop image B

JPEG, PNG, WebP

All comparison happens in your browser. Both images are loaded into local canvases - nothing is uploaded.
Share this tool with othersHelp others discover free tools
Embed this tool on your website

Copy this code to add the 图像比较 to your site for free. It runs entirely in your visitors' browsers - no API key, no usage limits.

<iframe src="https://optipix.art/embed/image-compare" width="100%" height="600" style="border:1px solid #e4e4e7;border-radius:8px;" title="图像比较 by OptiPix" loading="lazy"></iframe>
<p style="font-size:12px">Free tool by <a href="https://optipix.art/image-compare">OptiPix 图像比较</a></p>

❤️ Love this tool? Support our team.

No ads, no tracking, no limits. Tips keep 104 tools free for everyone.

$

Secure payment via Stripe · No account needed

About 图像比较

Last updated: May 2026

OptiPix Image Comparison 允许您使用五种不同的模式比较两张图像:可拖动的滑块、并排对比、不透明叠加、像素差异高亮显示和洋葱皮模式。差异视图以明亮的品红色高亮显示更改的像素,并具有可调节的阈值,因此您可以发现两个屏幕截图、设计模型或压缩/原始图像对之间微小的视觉变化。统计面板显示更改像素的确切数量、每通道的差异百分比、平均差异和最大差异。手动 X/Y 偏移滑块可让您对齐稍微偏移的扫描文档。将差异可视化或并排复合图像下载为 PNG 格式。非常适合视觉回归测试、比较编辑前/后的照片、比较设计迭代以及验证图像是否在没有可见损失的情况下被压缩。

How It Works

两张图像都会被解码到画布上。对于差异模式,每通道的像素缓冲区都会进行比较;超出阈值的差异会以品红色高亮显示在去饱和的基底上。统计数据在同一遍中计算。滑块模式使用裁剪的叠加层;洋葱皮模式使用半透明的复合。

Use Cases

  • 网页和设计系统的视觉回归测试
  • 发现重构后两个屏幕截图之间的像素差异
  • 比较原始照片与压缩或带水印的版本
  • 比较两个设计模型以供客户审查
  • 验证已去除元数据的图像在视觉上与原始图像相同

You Might Also Like

If you find 图像比较 useful, check out these related tools: Image Metadata Viewer, EXIF Remover, and Image Annotator. All tools run entirely in your browser with no uploads or signups required.

Frequently Asked Questions

像素级差异是如何工作的?
OptiPix 会逐像素地遍历两张图像,并标记任何每通道差异超出您阈值的像素。更改的像素会在变暗的灰度基底上以品红色高亮显示,并计算统计数据:总差异像素、平均差异、最大差异和百分比相同。
如果两张图像的大小不同怎么办?
OptiPix 会自动将第二张图像缩放到与第一张图像匹配,以用于差异/叠加/洋葱皮模式。对于并排比较,两张图像都会以其自然尺寸并排显示。
如何比较压缩图像与原始图像?
将原始图像作为图像 A,将压缩版本作为图像 B 拖入,然后切换到差异模式。阈值滑块可让您忽略微小的差异,专注于可见的损失。
我的图像会被上传吗?
不会。两张图像都通过 getImageData 加载到本地画布中,并且永远不会离开您的浏览器。
我可以下载差异可视化吗?
是的 - 差异视图可以导出为 PNG 格式,方便附加到错误报告或视觉回归报告中。

Related Tools

More AI Analysis Tools

All 102 Tools

Image CompressorBackground RemoverVideo CompressorImage UpscalerOCR Text ExtractorFormat ConverterImage ResizerEXIF RemoverFace BlurDepth EstimationQR Code GeneratorWatermark MakerColor Palette ExtractorPhoto FiltersImage to PDFObject DetectionImage ClassifierImage CaptionerAI Image GeneratorMeme GeneratorGIF MakerPhoto Collage MakerImage CropPhoto EffectsImage to SVGColor ChangerNoise RemoverPhoto RestorationColor PickerFavicon GeneratorImage to Base64Image Metadata ViewerImage AnnotatorPassport Photo MakerDocument ScannerASCII Art GeneratorImage ComparisonSprite Sheet GeneratorObject RemoverPanorama MakerWord CounterCase ConverterLorem Ipsum GeneratorUUID GeneratorUnix Timestamp ConverterText DiffURL Encoder / DecoderHTML Entity Encoder / DecoderBase64 Text Encoder / DecoderText to Binary / Hex / OctalHash GeneratorJSON Formatter / ValidatorRandom String GeneratorCSV ↔ JSON ConverterMarkdown EditorUnit ConverterPercentage CalculatorBMI CalculatorAge CalculatorTip CalculatorCSS Gradient GeneratorCSS Box Shadow GeneratorCSS Border Radius GeneratorGlassmorphism GeneratorNeumorphism GeneratorCSS Text Shadow GeneratorFlexbox PlaygroundCSS Grid GeneratorAudio TrimmerAudio ConverterAudio MergerAudio RecorderVideo to Audio ExtractorAudio Speed ChangerAudio Volume BoosterRingtone MakerVocal RemoverText to SpeechSpeech to TextAudio Noise RemoverAudio EqualizerAudio EffectsVideo TrimmerVideo MergerVideo ResizerVideo Speed ChangerVideo RotatorVideo to MP4 ConverterAdd Music to VideoMute VideoVideo LooperReverse VideoVideo ScreenshotAdd Subtitles to VideoVideo WatermarkScreen RecorderWebcam RecorderSlideshow MakerVideo FiltersCron Expression BuilderRegex TesterUnix Timestamp Converter