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PNG (Was: PNG and spam.)

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PNG and spam. John Culleton 04 Aug 01:23
  PNG (Was: PNG and spam.) Guillermo S. Romero / Familia Romero 04 Aug 21:45
John Culleton
2003-08-04 01:23:01 UTC (almost 21 years ago)

PNG and spam.

Someone using the suffix gimp.de is sending out spam. It is in html form so it is easy to screen out.

Someone also suggested on another list that the PNG format precludes CMYK color model. I know that Gimp does not produce CMYK images, but I didn't know whether PNG was an RGB only format. Can someone enlighten me?

Guillermo S. Romero / Familia Romero
2003-08-04 21:45:04 UTC (almost 21 years ago)

PNG (Was: PNG and spam.)

john@wexfordpress.com (2003-08-03 at 1923.01 -0400):

Someone also suggested on another list that the PNG format precludes CMYK color model. I know that Gimp does not produce CMYK images, but I didn't know whether PNG was an RGB only format. Can someone enlighten me?

It supports samples in RGB or gray. http://www.libpng.org/pub/png/spec/1.2/PNG-DataRep.html

In other part of the spec they talk about why it is ok for printing, if the right data chunks are included in the file. http://www.libpng.org/pub/png/spec/1.2/PNG-ColorAppendix.html#CT.what-do

GSR