save a cmyk image in jpeg

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Yiftach
Yiftach am 19 Aug. 2025 um 7:47
Kommentiert: Walter Roberson am 20 Aug. 2025 um 17:03
hi
i would like to save a cmyk image in jpeg
thanks!

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John D'Errico
John D'Errico am 19 Aug. 2025 um 12:38
No. Imwrite cannot save a CMYK image to JPG. However, it can save a 4 channel image to a PNG format. Then I would open the image in Photoshop, or your favorite image editing tool, and save it to a JPG format. An extra step, but it should be workable. A quick check online (since it has been 25+ years since I used Photoshop) did tell me that Photoshop can save an image as a CMYK JPG file.
  4 Kommentare
Yiftach
Yiftach am 20 Aug. 2025 um 14:50
thanks !!
Walter Roberson
Walter Roberson am 20 Aug. 2025 um 17:03
Sorry, I do not know very much about scripting for Windows.

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Walter Roberson
Walter Roberson am 19 Aug. 2025 um 8:57
Saving jpeg with CMYK is not supported by imwrite() or any other Mathworks supported function.
There just might happen to be appropriate code in the File Exchange, but I would not count on it.
  1 Kommentar
Yiftach
Yiftach am 20 Aug. 2025 um 8:33
thanks - looked couldn't find.

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