Difference between revisions of "JPG"
From Teknologisk videncenter
m |
m (→Resize) |
||
(One intermediate revision by the same user not shown) | |||
Line 5: | Line 5: | ||
==Progressive JPG== | ==Progressive JPG== | ||
Shows image in low quality immediately and enhance quality as the download progresses. | Shows image in low quality immediately and enhance quality as the download progresses. | ||
− | <source | + | <source lang=cli> |
root@mars:/var/www/data/svp#<input>jpegtran -progressive Image0013.JPG > i13p.JPG</input> | root@mars:/var/www/data/svp#<input>jpegtran -progressive Image0013.JPG > i13p.JPG</input> | ||
root@mars:/var/www/data/svp#<input>ls -l</input> | root@mars:/var/www/data/svp#<input>ls -l</input> | ||
Line 13: | Line 13: | ||
==Resize== | ==Resize== | ||
+ | Resize the image to maximum width or height. Does not change the format of the image, only resizes it. | ||
<source lang=cli> | <source lang=cli> | ||
root@mars:/var/www/data/svp#<input>convert i13p.JPG -resize 100x100 i13p-100.JPG</input> | root@mars:/var/www/data/svp#<input>convert i13p.JPG -resize 100x100 i13p-100.JPG</input> |
Latest revision as of 12:57, 24 February 2014
Eksterne Links
Linux JPG tools
Progressive JPG
Shows image in low quality immediately and enhance quality as the download progresses.
root@mars:/var/www/data/svp#<input>jpegtran -progressive Image0013.JPG > i13p.JPG</input>
root@mars:/var/www/data/svp#<input>ls -l</input>
-rw-r--r-- 1 root root 671930 2014-02-24 11:46 i13p.JPG
-rw-r--r-- 1 root root 708954 2014-02-24 11:34 Image0013.JPG
Resize
Resize the image to maximum width or height. Does not change the format of the image, only resizes it.
root@mars:/var/www/data/svp#<input>convert i13p.JPG -resize 100x100 i13p-100.JPG</input>
root@mars:/var/www/data/svp#<input>ls -l</input>
-rw-r--r-- 1 root root 2410 2014-02-24 11:57 i13p-100.JPG
-rw-r--r-- 1 root root 671930 2014-02-24 11:46 i13p.JPG
-rw-r--r-- 1 root root 708954 2014-02-24 11:34 Image0013.JPG