Legacy ImageMagick Discussions Archive

I think I managed with:
Would this be the correct way? If you guys now something faster, do say.

Thank you

Hello, I could not figure out how to transpose this into Perl syntax. The idea is that I have PNG32 images and I would need to convert them with the following settings to png8: my_image.png -colors 256 PNG8:my_image.png - work great in command line with desired output I tried with $my_image->Set ...

Unfortunately I did not manage to install the support for it.

if I run indentify on my jp2 image, I get: I just ran Is it possible the conversion is not ok?

Hello,

I think you have solved my issue. I do not have the format listed.
I will try to install the support.

The thing is, that equery u shows that the support for jpeg 2000 is active. (through DCM* maybe )

Hello,
I am still trying to use: but with no luck.

I have a png file and I want to obtain the jpeg 2000 format from the script.
The error is an empty file."

Can someone please tell me how is the correct syntax that should be used?

If this is not possible I would also need some insight in how to make my png8 files smaller...maybe? The only attribute that I am sending to ImageToBlob is magick -> png and quality-> 90
I am not sure if I could use some compression or something similar.

I appreciate any advice.

Hello all, I have a script which takes png8/32 files and crops them to a fixed width and height and then uses ImageToBlob. The problem is that I would need to get and end result with a jp2 file as I get a smaller size of the same file. Is it possbile to use ImageToBlob(magick=>'jp2')? I tried but ...

I too think this would be a great addition. Especially if it will be widely supported by web browsers.

Hello, Yes, jp2000 supports transparency. I managed to fix it by running the same command as in the first post, but on version 6.7.8-8 2013-03-18 Q16 (on a virtual machine) For this version, when I run convert -version I have listed only these (no delegates) "6.7.8-8 2013-03-18 Q16" "Features ...

Hello,

I am using imagemagick-6.8.5.4 on Unix; if I use your example I just have a black box.

Do you have the jasper delegate library installed?

Check your delegates via

convert -version

does it list jp2 or jp2000

Hello all, I would need some assistance in making this happen. I have some png32 tiles with dimensions ~270 KiB and I managed to reduce the size and keep the quality like this: convert my_file.png -define jp2:rate=0.3 -define compression=JPEG2000 my_file.jp2 It all worked well until I saw that it ...