PNG issue

Posted by Rainer M. Engel on Aug 27, 2013; 8:58am
URL: http://imagej.273.s1.nabble.com/PNG-issue-tp5004564.html

Hello everyone,

there seems to be a problem with the png-built-in-compression which is
good to have but not to deactivate, at least I think.

The attached macro creates n-Files in a certain resolution. It occurred
to me on different systems, that images containing only black and white
pixels (binary) will most likely have this problem. In my passes up to 3
Images out of 2000 will not reopen in ImageJ. That doesn't mean they are
overall corrupt since PS and other Tools can open them.

What does the macro do?
1 Step: it creates n-Images inside of a user defined working folder
2 Step: these images are opened again

There are two optional settings (rotation and blur). It seems to me, the
more grey pixels there are, the more likely all will be fine.

What do you encounter?

Best regards,
Rainer


--
Rainer M. Engel, Dipl. Digital Artist
scientific|Media GbR
Pichelsdorfer Str. 143
13595 Berlin





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