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progressive jpeg to progressive jpeg

Posted: 2008-10-01T00:06:43-07:00
by imagenki
I am curious if source file were a progressive jpeg and I resized it, would the converted jpeg retain progressiveness?
Thanks in advance!

:)

Re: progressive jpeg to progressive jpeg

Posted: 2008-10-01T18:35:47-07:00
by anthony
Why don't you try a test and just see.

Code: Select all

   convert progressive.jpg -taint  test.jpg

Re: progressive jpeg to progressive jpeg

Posted: 2008-10-01T21:29:27-07:00
by imagenki
I tested and it turned out conversion wipes out progressiveness.

This is from original file:
Interlace: JPEG
This is from converted file:
Interlace: None