Zhang Weiwu on wrote...
| Dear list:
|
| This is my first time try convert(1). I did this:
| $ convert 1329.jpg 1330.jpg -adjoin identity.tiff
|
| The two images are here:
| gopher://sdf.lonestar.org/I/users/weiwu/1329.jpg
| gopher://sdf.lonestar.org/I/users/weiwu/1330.jpg
|
| Both images are less then 300KB in size, however the converted tiff
| image is as big as 1331KB. This is strange as tiff file is twice as big
| as it should be. As compression method shouldn't been changed (still
| JPEG inside the TIFF) I wonder how this comes to be and, is there a way
| to generate tiff image less then 600KB? Thanks in advance!
|
| I also tested the generated tiff image to make sure it's still in JPEG
| compression:
|
Did you try adjusting the -quality setting for the JPEG's?
Does that make a difference?
Also reading and re-saving JPEG files (with JPEG lossy compression)
is NOT a good idea. Doing so degrades the image. That is the price you
pay for using a higly compressed JPEG image.
I do know know of a lossless insert of JPEG to TIFF images.
If there was it would proably make a good IM delegate (external
converter program).
Anthony Thyssen ( System Programmer ) <[EMAIL PROTECTED]>
-----------------------------------------------------------------------------
Man may come, and man may go, but the earth abides. -- "The Earth Abides"
-----------------------------------------------------------------------------
Anthony's Home is his Castle http://www.cit.gu.edu.au/~anthony/
_______________________________________________
Magick-users mailing list
[email protected]
http://studio.imagemagick.org/mailman/listinfo/magick-users
