Legacy ImageMagick Discussions Archive

It probably means your version of mogrify can't read or write jpg files. Try: mogrify -list format It should have a ouple of lines like: JPEG* JPEG rw- Joint Photographic Experts Group JFIF format (62) JPG* JPEG rw- Joint Photographic Experts Group JFIF format What version are you running? (mogrify ...

When I run the convert command given by fmw42, I get a different image to image12diff.png on Google. (Personally, I'd put a +repage after the +trim. But that isn't relevant to transparency.) This is using an old IM: 6.4.5 Q16. The image I get has a transparent background, which I would expect. When ...

No questions; just some notes might might save someone some grief. I installed Linux 9.04 from the current version of ArtistX. Then I downloaded IM from ftp://ftp.imagemagick.org/pub/ImageMagick/ImageMagick.tar.gz, and compiled from source, as directed by http://www.imagemagick.org/script/install-so...

Can you post the exact commands you used? Then we can try to reproduce the problem. What version of IM do you use?

About the best I can get with bg_removal is: ./bg_removal img_0092.jpg 'RGB(37,188,111)' 18 19 img_0002_C.jpg These parameters cut slightly into the sock and fur, and leaves a little of the green surround. You can tweak the "18" to adjust your compromise. I got the colour by using Gimp to ...

I would certainly use an image closer to what the camera photographed (not shrunk, etc). Method 1: Simply and crudely turn the green white: convert img_0092.jpg -fx "hue<0.25||hue>0.50?u:white" img_0092_a.png This gives jaggies, and we have lost the white sock and fur, which have picked up...

The links don't work. Perhaps you didn't tell GoogleDocs that anyone could have access.

Try using the full path of your downloaded profile: /my_downloads/adobeRGB1998.icc or whatever.

Can you post links to image1.png and image2.png?

I suggest that subjective "quality" is hard to determine in software, including ImageMagick.

You might find that creating both PNG and JPG versions, with suitable "-quality" settings, then choosing the smallest of the two, gets you somewhere near.

Perhaps the script needs some work. Can you post it?

Have you tried fmw42's suggestion of removing transparency?

convert rounded_corners.png -background white -flatten rounded_corners.png

I don't know the answers, but: (a) The Ubuntu file manager (Nautilus) seems to give the behaviour you want (b) So does Gimp, although opening mask.tif gives the warning: "TIFF image Message. alpha channel type not defined for file mask.tif. Assuming alpha is not premultiplied." So I assume...

Is it trying to tell you alpha channels aren't supported in PDF?

When test.png has transparency: works for me, but test2.png has no transparency.

(Ubuntu, IM is 6.4.5 2009-06-04 Q16)

Put it on a website somewhere and post the URL here.