What chroma subsampling rate (e.g., 4:2:0 or 4:2:2) does imwrite use when saving a JPEG image?

조회 수: 4 (최근 30일)
Tyler Bell
Tyler Bell 2016년 11월 7일
댓글: Diego Ayala 2022년 2월 8일
What chroma subsampling rate (e.g., 4:2:0 or 4:2:0) does imwrite use when saving a JPEG image, by default?

이 질문에 답변하려면 로그인하십시오.

답변 (1개)

DGM
DGM 2021년 4월 10일
I know this is an old question, but I just had to figure it out myself. Imwrite uses 4:2:0 chroma subsampling, and the default quality setting is 75%. Somebody must really love crispy jpeg artifacts.
  댓글 수: 1
Diego Ayala
Diego Ayala 2022년 2월 8일
Thanks for clarifying this, currently working on a new image compression format and comparing to JPG generated by Matlab, this informmation is useful.

댓글을 달려면 로그인하십시오.

카테고리

Help Center 및 File Exchange에서 Import, Export, and Conversion에 대해 자세히 알아보기

태그

제품

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by