Verified65% confidenceFactExact time
PNG uses lossless compression based on DEFLATE and supports transparent channels, while JPEG uses lossy compression based on discrete cosine transform and does not support transparency
3
Sources
65%
Confidence
Long-term
Relevance
8/4/2026
First Seen
Sources
MergeImage：浏览器本地免费图片合并工具，隐私零上传
Related Claims
UnverifiedPNG is a pixel-grid-based bitmap format that uses lossless compression; its resolution is locked in at generation time, and when enlarged for display it causes edges and text to blur due to interpolation.79% similarUnverifiedRavioli supports exporting in two formats: PNG with a transparent background and losslessly scalable SVG.68% similarVerifiedThe core algorithm of JPEG image compression is the Discrete Cosine Transform (DCT); images are divided into 8×8 pixel blocks, and after each block undergoes a frequency-domain transform, high-frequency detail information is selectively discarded.67% similar
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