Legacy ImageMagick Discussions Archive

Hi,

MIFF files has when you identify them, is it possible to change it? I want to save a project as MIFF and I need to save the composite operator for later use.

I tried (in Magick++):

Composition operator to be used when composition is implicitly used (such as for image flattening).

But that is not saved in the MIFF.

The project is just a bunch of images layered on top with various offset and composite operators, very basic stuff.

Please, always provide your IM version and platform when asking questions, since syntax may differ.

Also provide your exact command line and your images, if possible.

See the top-most post in this forum "IMPORTANT: Please Read This FIRST Before Posting" at http://www.imagemagick.org/discourse-se ... f=1&t=9620

If using Imagemagick 7, then see http://imagemagick.org/script/porting.php#cli


For novices, see

http://www.imagemagick.org/discourse-se ... f=1&t=9620
http://www.imagemagick.org/script/comma ... essing.php
http://www.imagemagick.org/Usage/reference.html
http://www.imagemagick.org/Usage/
https://github.com/ImageMagick/usage-markdown
https://imagemagick.org/script/porting.php#cli

6.9.10-16 Q16HDRI Linux.

Command: set compose operator (not "Over") on a image, save as MIFF, run identify and check "Compose: XXX".

My question is: If I set the compose operator on an image can I expect that info to be saved in the MIFF?


Btw, I have already added custom attr to workaround this, I just wanted to know why the image contains a "Compose" option but it's always "Over".

At the command line, saving as miff also saved the current setting of "-compose". This meant that after reading a miff, "-composite" without explicitly setting "-compose" was risky.

That no longer seems to be the case. I don't know if using a composite setting in an API ever set the "compose" metadata. I doubt if it did, because the API didn't use that metadata.

Yes, custom attributes are a solution to this.

Thanks for the information, will use custom attributes.