Legacy ImageMagick Discussions Archive

I am sorry that I can not simply provide the image. I would have to use imageshack or something similar. If this would be ok (image does not get modified by doing so) we could give it a try. Maybe we can still sort this out without doing so.

What I am trying to do in the first place is: Get a part ...

Thank you all for your efforts and answers.

Fred (board user fmw42) opened up this thread because of this thread which I started:
how to crop without changing type (http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=18269)

I am not really an expert on this, please keep this in mind ...

Thank you Fred.

Now, this information does shed some light on it.

First let's do as suggested:
identify -verbose png32:part-of-it.png
Format: PNG32 (32-bit RGBA PNG, semitransparency OK)

before it was just this

Format: PNG (Portable Network Graphics)

No other changes in the output of ...

Again, thank you both.

I tried convert big-pic_orig.png -channel rgba -matte -crop 880x600+200+190\! +repage -strip -type TrueColorMatte png32:part-of-it.png , but neither did it work for you nor for me.

Thank you for submitting a bug report, this saves me the time to find out how to do this ...

Thank you both for your answers.

It gives me some sort of comfort that it is more of a bug and less of a user failure. The downside is, there is no way to solve it quickly.

Easy things first:
I tried +repage and -repage 880x600+0+0 and found no difference. I guess the exclamation mark appended to ...

Hi.

I feel a bit insecure to bother you with this little problem, but it bugs me enough to register here, so I hope someone can help or enlighten me:

I want to crop a region from a bigger PNG-image without changing anything else. My tries on the bash command line are:

convert -background white ...