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JPEG compression

时间:2020-01-23 14:35:15      阅读:86      评论:0      收藏:0      [点我收藏+]

The JPEG compression algorithm split the image into 8x8 blocks

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My thinking is that if we split an image into 8x8 blocks, feed each block to libjpeg and then merge the JPEG blocks into a lossless format(say PNG) , we should theoretically obtain the same JPEG if we had converted the original image directly into JPEG.However this isn‘t the case in practice.

Image used : https://drive.google.com/file/d/1ncp_gZ ... sp=sharing

Here is my code:

 

https://www.imagemagick.org/discourse-server/viewtopic.php?t=33298

JPEG compression

原文:https://www.cnblogs.com/feng9exe/p/12230566.html

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